@article{19503, abstract = {A tantalizing open problem, posed independently by Stiebitz in 1995 and by Alon in 1996 and again in 2006, asks whether for every pair of integers s,t≥1 there exists a finite number F(s,t) such that the vertex set of every digraph of minimum out-degree at least F(s,t) can be partitioned into non-empty parts A and B such that the subdigraphs induced on A and B have minimum out-degree at least s and t , respectively. In this short note, we prove that if F(2,2) exists, then all the numbers F(s,t) with s,t≥1 exist and satisfy F(s,t)=Θ(s+t) . In consequence, the problem of Alon and Stiebitz reduces to the case s=t=2 . Moreover, the numbers F(s,t) with s,t≥2 either all exist and grow linearly, or all of them do not exist.}, author = {Christoph, Micha and Petrova, Kalina H and Steiner, Raphael}, issn = {1469-2163}, journal = {Combinatorics Probability and Computing}, number = {4}, pages = {559--564}, publisher = {Cambridge University Press}, title = {{A note on digraph splitting}}, doi = {10.1017/S0963548325000045}, volume = {34}, year = {2025}, } @article{19504, abstract = {Observational studies have shown that galaxy disks were already in place in the first few billion years of the Universe. The early disks detected so far, with typical half-light radii of 3 kpc at stellar masses around 1011 M⊙ for redshift z ≈ 3, are significantly smaller than today’s disks with similar masses, which is in agreement with expectations from current galaxy models. Here we report observations of a giant disk at z = 3.25, when the Universe was only two billion years old, with a half-light radius of 9.6 kpc and stellar mass of (math formular). This galaxy is larger than any other kinematically confirmed disks at similar epochs and is surprisingly similar to today’s largest disks with regard to size and mass. James Webb Space Telescope imaging and spectroscopy reveal its spiral morphology and a rotational velocity consistent with a local Tully–Fisher relationship. Multiwavelength observations show that it lies in an exceptionally dense environment, where the galaxy number density is more than ten times higher than the cosmic average and mergers are frequent. The discovery of such a giant disk suggests the presence of favourable physical conditions for large-disk formation in dense environments in the early Universe, which may include efficient accretion of gas carrying coherent angular momentum and non-destructive mergers between exceptionally gas-rich progenitor galaxies.}, author = {Wang, Weichen and Cantalupo, Sebastiano and Pensabene, Antonio and Galbiati, Marta and Travascio, Andrea and Steidel, Charles C. and Maseda, Michael V. and Pezzulli, Gabriele and De Beer, Stephanie and Fossati, Matteo and Fumagalli, Michele and Gallego, Sofia G. and Lazeyras, Titouan and Mackenzie, Ruari and Matthee, Jorryt J and Nanayakkara, Themiya and Quadri, Giada}, issn = {2397-3366}, journal = {Nature Astronomy}, pages = {710--719}, publisher = {Springer Nature}, title = {{A giant disk galaxy two billion years after the Big Bang}}, doi = {10.1038/s41550-025-02500-2}, volume = {9}, year = {2025}, } @article{19505, abstract = {In this paper, we introduce and study the primitive equations with non-isothermal turbulent pressure and transport noise. They are derived from the Navier–Stokes equations by employing stochastic versions of the Boussinesq and the hydrostatic approximations. The temperature dependence of the turbulent pressure can be seen as a consequence of an additive noise acting on the small vertical dynamics. For such a model we prove global well-posedness in H^1 where the noise is considered in both the Itô and Stratonovich formulations. Compared to previous variants of the primitive equations, the one considered here presents a more intricate coupling between the velocity field and the temperature. The corresponding analysis is seriously more involved than in the deterministic setting. Finally, the continuous dependence on the initial data and the energy estimates proven here are new, even in the case of isothermal turbulent pressure.}, author = {Agresti, Antonio and Hieber, Matthias and Hussein, Amru and Saal, Martin}, issn = {1050-5164}, journal = {Annals of Applied Probability}, number = {1}, pages = {635--700}, publisher = {Institute of Mathematical Statistics}, title = {{The stochastic primitive equations with nonisothermal turbulent pressure}}, doi = {10.1214/24-AAP2124}, volume = {35}, year = {2025}, } @article{19507, abstract = {The epidermis provides a protective barrier against hostile environments. However, our knowledge of how this barrier forms during development and is subsequently maintained remains incomplete. The infundibulum is a cylindrical epidermal tissue compartment that serves as an outlet for hair follicles protruding from the skin and the excretion of the sebaceous glands that are essential for proper skin function. In this study, we applied quantitative fate mapping to address how infundibulum are maintained during adulthood. We demonstrate that progenitors build and maintain tissues through stochastic cell fate choices. Long-term analysis identified a preferential transient contribution from cells initially located at the bottom of the structure to the maintenance of the tissue, with bursts of local progenitor expansion associated with the phases of hair growth. Beyond providing compartment-wide insights into progenitor cell dynamics in infundibulum, these findings demonstrate how spatiotemporal regulation controls transient progenitor dominance.}, author = {Andersen, Marianne S. and Ulyanchenko, Svetlana and Schweiger, Pawel J. and Hannezo, Edouard B and Simons, Benjamin D. and Jensen, Kim B.}, issn = {1523-1747}, journal = {Journal of Investigative Dermatology}, number = {9}, pages = {2191--2202.e5}, publisher = {Elsevier}, title = {{Spatiotemporal switches in progenitor cell fate govern upper hair follicle growth and maintenance}}, doi = {10.1016/j.jid.2025.01.034}, volume = {145}, year = {2025}, } @article{19529, abstract = {NRF2 is a transcription factor responsible for coordinating the expression of over a thousand cytoprotective genes. Although NRF2 is constitutively expressed, its stability is modulated by the redox-sensitive protein KEAP1 and other conditional binding partner regulators. The new era of NRF2 research has highlighted the cooperation between NRF2 and PIN1 in modifying its cytoprotective effect. Despite numerous studies, the understanding of the PIN1-NRF2 interaction remains limited. Herein, we described the binding interaction of PIN1 and three different 14-mer long phospho-peptides mimicking NRF2 protein using computer-based, biophysical, and biochemical approaches. According to our computational analyses, the residues positioned in the WW domain of PIN1 (Ser16, Arg17, Ser18, Tyr23, Ser32, Gln33, and Trp34) were found to be crucial for PIN1-NRF2 interactions. Biophysical FP assays were used to verify the computational prediction. The data demonstrated that Pintide, a peptide predominantly interacting with the PIN1 WW-domain, led to a significant reduction in the binding affinity of the NRF2 mimicking peptides. Moreover, we evaluated the impact of known PIN1 inhibitors (juglone, KPT-6566, and EGCG) on the PIN1-NRF2 interaction. Among the inhibitors, KPT-6566 showed the most potent inhibitory effect on PIN1-NRF2 interaction within an IC50 range of 0.3–1.4 µM. Furthermore, our mass spectrometry analyses showed that KPT-6566 appeared to covalently modify PIN1 via conjugate addition, rather than disulfide exchange of the sulfonyl-acetate moiety. Altogether, such inhibitors would also be highly valuable molecular probes for further investigation of PIN1 regulation of NRF2 in the cellular context and potentially pave the way for drug molecules that specifically inhibit the cytoprotective effects of NRF2 in cancer.}, author = {Ozleyen, Adem and Duran, Gizem Nur and Dönmez, Serhat and Ozbil, Mehmet and Doveston, Richard G. and Tumer, Tugba Boyunegmez}, issn = {2045-2322}, journal = {Scientific Reports}, publisher = {Springer Nature}, title = {{Identification and inhibition of PIN1-NRF2 protein–protein interactions through computational and biophysical approaches}}, doi = {10.1038/s41598-025-89342-0}, volume = {15}, year = {2025}, } @article{19531, abstract = {In standard quantum electrodynamics (QED), the so-called non-minimal (Pauli) coupling is suppressed for elementary particles and has no physical implications. Here, we show that the Pauli term naturally appears in a known family of Dirac materials—the lead-halide perovskites, suggesting a novel playground for the study of analog QED effects. We outline measurable manifestations of the Pauli term in the phenomena pertaining to (i) relativistic corrections to bound states (ii) the Klein paradox, and (iii) spin effects in scattering. In particular, we demonstrate that (a) the binding energy of an electron in the vicinity of a positively charged defect is noticeably decreased due to the polarizability of lead ions and the appearance of a Darwin-like term, (b) strong spin-orbit coupling due to the Pauli term affects the exciton states, and (c) scattering of an electron off an energy barrier with broken mirror symmetry produces spin polarization in the outgoing current. Our study adds to the understanding of quantum phenomena in lead-halide perovskites and paves the way for tabletop simulations of analog Dirac-Pauli equations.}, author = {Shiva Kumar, Abhishek and Maslov, Mikhail and Lemeshko, Mikhail and Volosniev, Artem and Alpichshev, Zhanybek}, issn = {2397-4648}, journal = {npj Quantum Materials}, publisher = {Springer Nature}, title = {{Massive Dirac-Pauli physics in lead-halide perovskites}}, doi = {10.1038/s41535-025-00754-7}, volume = {10}, year = {2025}, } @article{19554, abstract = {In 1981, Karp and Sipser proved a law of large numbers for the matching number of a sparse Erdős–Rényi random graph, in an influential paper pioneering the so-called differential equation method for analysis of random graph processes. Strengthening this classical result, and answering a question of Aronson, Frieze and Pittel, we prove a central limit theorem in the same setting: the fluctuations in the matching number of a sparse random graph are asymptotically Gaussian. Our new contribution is to prove this central limit theorem in the subcritical and critical regimes, according to a celebrated algorithmic phase transition first observed by Karp and Sipser. Indeed, in the supercritical regime, a central limit theorem has recently been proved in the PhD thesis of Kreačić, using a stochastic generalisation of the differential equation method (comparing the so-called Karp–Sipser process to a system of stochastic differential equations). Our proof builds on these methods, and introduces new techniques to handle certain degeneracies present in the subcritical and critical cases. Curiously, our new techniques lead to a non-constructive result: we are able to characterise the fluctuations of the matching number around its mean, despite these fluctuations being much smaller than the error terms in our best estimates of the mean. We also prove a central limit theorem for the rank of the adjacency matrix of a sparse random graph.}, author = {Glasgow, Margalit and Kwan, Matthew Alan and Sah, Ashwin and Sawhney, Mehtaab}, issn = {1469-7750}, journal = {Journal of the London Mathematical Society}, number = {4}, publisher = {Wiley}, title = {{A central limit theorem for the matching number of a sparse random graph}}, doi = {10.1112/jlms.70101}, volume = {111}, year = {2025}, } @article{19555, abstract = {The charged arginine side chain is unique in determining many innate properties of proteins, contributing to stability and interaction surfaces, and directing allosteric regulation and enzymatic catalysis. NMR experiments can be used to reveal these processes at the molecular level, but it often requires selective insertion of carbon-13, nitrogen-15, and deuterium at defined atomic positions. We introduce a method to endow arginine residues with defined isotope patterns, combining synthetic organic chemistry and cell-based protein overexpression. The resulting proteins feature NMR active spin systems with optimized relaxation pathways leading to simplified NMR spectra with a sensitive response to changes in the chemical environment of the nuclei observed.}, author = {Rohden, Darja and Toscano, Giorgia and Schanda, Paul and Lichtenecker, Roman J.}, issn = {1521-3765}, journal = {Chemistry - A European Journal}, number = {24}, publisher = {Wiley}, title = {{Synthesis of selectively 13C/2H/15N- labeled arginine to probe protein conformation and interaction by NMR spectroscopy}}, doi = {10.1002/chem.202500408}, volume = {31}, year = {2025}, } @article{19565, abstract = {Measuring distances in a multidimensional setting is a challenging problem, which appears in many fields of science and engineering. In this paper, to measure the distance between two multivariate distributions, we introduce a new measure of discrepancy which is scale invariant and which, in the case of two independent copies of the same distribution, and after normalization, coincides with the scaling invariant multidimensional version of the Gini index recently proposed in [P. Giudici, E. Raffinetti and G. Toscani, Measuring multidimensional inequality: A new proposal based on the Fourier transform, preprint (2024), arXiv:2401.14012 ]. A byproduct of the analysis is an easy-to-handle discrepancy metric, obtained by application of the theory to a pair of Gaussian multidimensional densities. The obtained metric does improve the standard metrics, based on the mean squared error, as it is scale invariant. The importance of this theoretical finding is illustrated by means of a real problem that concerns measuring the importance of Environmental, Social and Governance factors for the growth of small and medium enterprises. }, author = {Auricchio, Gennaro and Brigati, Giovanni and Giudici, Paolo and Toscani, Giuseppe}, issn = {1793-6314}, journal = {Mathematical Models and Methods in Applied Sciences}, number = {5}, pages = {1267--1296}, publisher = {World Scientific Publishing}, title = {{Multivariate Gini-type discrepancies}}, doi = {10.1142/s0218202525500174}, volume = {35}, year = {2025}, } @article{19585, abstract = {Air quality in northern South America faces significant challenges due to insufficient high-resolution emission inventories and sparse atmospheric studies. This study addresses these gaps by developing a novel framework that integrates high-resolution nighttime light data from SDGSAT-1 and multisource remote sensing datasets with deep learning techniques to downscale emission inventories. The refined inventories are coupled with meteorological inputs into the Weather Research and Forecasting (WRF-Chem) model, enabling precise simulation of pollutant dynamics. Validated against ground measurements from Colombia's SISAIRE monitoring network, demonstrates significant improvements in spatiotemporal accuracy, particularly for particulate matter (PM) and nitrogen dioxide (NO₂) with error reductions of 22–30 % and correlation coefficients increasing from 0.68 to 0.85. These findings underscore the critical role of satellite-enhanced inventories in resolving localized emission patterns and seasonal variability, such as dry-season PM₁₀ spikes (150 % increase from wildfires). The framework provides policymakers with actionable insights to prioritize mitigation in rapidly urbanizing regions and manage transboundary pollution. By bridging data scarcity gaps, this replicable methodology offers transformative potential for global air quality management and public health protection, advocating for expanded ground monitoring networks and real-time satellite data integration in future applications.}, author = {Antezana-Lopez, Franz and Casallas Garcia, Alejandro and Zhou, Guanhua and Zhang, Kai and Jing, Guifei and Ali, Aamir and Lopez-Barrera, Ellie and Belalcazar, Luis Carlos and Rojas, Nestor and Jiang, Hongzhi}, issn = {1879-0704}, journal = {Remote Sensing of Environment}, publisher = {Elsevier}, title = {{High-resolution anthropogenic emission inventories with deep learning in northern South America}}, doi = {10.1016/j.rse.2025.114761}, volume = {324}, year = {2025}, } @article{19596, abstract = {We report the spectroscopic discovery of a massive quiescent galaxy at zspec = 7.29 ± 0.01, just ∼700 Myr after the big bang. RUBIES-UDS-QG-z7 was selected from public JWST/NIRCam and MIRI imaging from the PRIMER survey and observed with JWST/NIRSpec as part of RUBIES. The NIRSpec/PRISM spectrum reveals one of the strongest Balmer breaks observed thus far at z > 6, with no emission lines but tentative Balmer and Ca absorption features, as well as a Lyman break. Simultaneous modeling of the NIRSpec/PRISM spectrum and NIRCam and MIRI photometry (spanning 0.9–18 μm) shows that the galaxy formed a stellar mass of (math. formular) before z ∼ 8 and ceased forming stars 50–100 Myr prior to the time of observation, resulting in log (sSFR/Gyr- 1) < -1 . We measure a small physical size of (math formular) , which implies a high stellarmass surface density within the effective radius of (math formular) comparable to the highest densities measured in quiescent galaxies at z ∼ 2–5. The 3D stellar-mass density profile of RUBIES-UDS-QG-z7 is remarkably similar to the central densities of local massive ellipticals, suggesting that at least some of their cores may have already been in place at z > 7. The discovery of RUBIES-UDS-QG-z7 has strong implications for galaxy formation models: the estimated number density of quiescent galaxies at z ∼ 7 is >100 × larger than predicted from any model to date, indicating that quiescent galaxies have formed earlier than previously expected. }, author = {Weibel, Andrea and De Graaff, Anna and Setton, David J. and Miller, Tim B. and Oesch, Pascal A. and Brammer, Gabriel and Lagos, Claudia D.P. and Whitaker, Katherine E. and Williams, Christina C. and Baggen, Josephine F.W. and Bezanson, Rachel and Boogaard, Leindert A. and Cleri, Nikko J. and Greene, Jenny E. and Hirschmann, Michaela and Hviding, Raphael E. and Kuruvanthodi, Adarsh and Labbé, Ivo and Leja, Joel and Maseda, Michael V. and Matthee, Jorryt J and Mcconachie, Ian and Naidu, Rohan P. and Roberts-Borsani, Guido and Schaerer, Daniel and Suess, Katherine A. and Valentino, Francesco and Van Dokkum, Pieter and Wang, Bingjie}, issn = {1538-4357}, journal = {The Astrophysical Journal}, number = {1}, publisher = {IOP Publishing}, title = {{RUBIES reveals a massive quiescent galaxy at z = 7.3}}, doi = {10.3847/1538-4357/adab7a}, volume = {983}, year = {2025}, } @article{19597, abstract = {Superconductor–semiconductor hybrid systems play a crucial role in realizing nanoscale quantum devices, including hybrid qubits, Majorana bound states, and Kitaev chains. For such hybrid devices, subgap states play a prominent role in their operation. In this paper, we study these subgap states via Coulomb and tunneling spectroscopy through a superconducting island defined in a semiconductor nanowire fully coated by a superconductor. We systematically explore regimes ranging from an almost decoupled island to the open configuration. In the weak-coupling regime, the experimental observations are very similar in the absence of a magnetic field and when one flux quantum pierces the superconducting shell. Conversely, in the strong-coupling regime, significant distinctions emerge between the two cases. We attribute this distinct behavior to the existence of subgap states at one flux quantum, which become observable only for sufficiently strong coupling to the leads. We support our interpretation using a simple model to describe transport through the island. Our study highlights the importance of studying a broad range of tunnel couplings for understanding the rich physics of hybrid devices.}, author = {Valentini, Marco and Souto, Rubén Seoane and Borovkov, Maksim and Krogstrup, Peter and Meir, Yigal and Leijnse, Martin and Danon, Jeroen and Katsaros, Georgios}, issn = {2643-1564}, journal = {Physical Review Research}, number = {2}, publisher = {American Physical Society}, title = {{Subgap transport in superconductor-semiconductor hybrid islands: Weak and strong coupling regimes}}, doi = {10.1103/PhysRevResearch.7.023022}, volume = {7}, year = {2025}, } @article{19598, abstract = {We establish universal Gaussian fluctuations for the mesoscopic linear eigenvalue statistics in the vicinity of the cusp-like singularities of the limiting spectral density for Wigner-type random matrices. Prior to this work, the linear eigenvalue statistics at the cusp-like singularities were not studied in any ensemble. Our analysis covers not only the exact cusps but the entire transitionary regime from the square-root singularity at a regular edge through the sharp cusp to the bulk. We identify a new one-parameter family of functionals that govern the limiting bias and variance, continuously interpolating between the previously known formulas in the bulk and at a regular edge. Since cusps are the only possible singularities besides the regular edges, our result gives a complete description of the linear eigenvalue statistics in all regimes.}, author = {Riabov, Volodymyr}, issn = {1432-2064}, journal = {Probability Theory and Related Fields}, pages = {1183--1237}, publisher = {Springer Nature}, title = {{Linear Eigenvalue statistics at the cusp}}, doi = {10.1007/s00440-025-01373-w}, volume = {193}, year = {2025}, } @article{19599, abstract = {Advances in nickel catalysis have significantly broadened the synthetic chemists’ toolbox, particularly through methodologies leveraging paramagnetic nickel species via photoredox catalysis or electrochemistry. Key to these reactions is the oxidation state modulation of nickel via single-electron transfer events. Recent mechanistic studies indicate that C(sp2)–heteroatom bond formations proceed through NiI/NiIII cycles. Related C(sp2)–C(sp3) cross-couplings operate via the photocatalytic generation of C-centered radicals and a catalytic cycle that involves Ni0, NiI, and NiIII species. Here, we show that light-mediated nickel-catalyzed C(sp2)–C(sp3) bond formations can be carried out without using exogenous photoredox catalysts but with a photoactive ligand. In a pursuit of expanding the scope of C(sp2)–heteroatom couplings using donor–acceptor ligands, we identified a photoactive nickel complex capable of catalyzing cross-couplings between aryl halides and benzyltrifluoroborate salts. Mechanistic investigations provide evidence that transmetalation between a photochemically generated NiI species and the organoboron compound is the key catalytic step in a NiI/NiIII catalytic cycle under these conditions.}, author = {Anghileri, Lucia and Baunis, Haralds and Bena, Aleksander and Giannoudis, Christos and Burke, John H. and Reischauer, Susanne and Merschjann, Christoph and Wallick, Rachel F. and Al Said, Tarek and Adams, Callum E and Simionato, Gianluca and Kovalenko, Sergey and Dell’Amico, Luca and Van Der Veen, Renske M. and Pieber, Bartholomäus}, issn = {1520-5126}, journal = {Journal of the American Chemical Society}, number = {16}, pages = {13169–13179}, publisher = {American Chemical Society}, title = {{Evidence for a unifying NiI/NiIII mechanism in light-mediated cross-coupling catalysis}}, doi = {10.1021/jacs.4c16050}, volume = {147}, year = {2025}, } @inproceedings{19600, abstract = {In this work, we explore route discovery in private payment channel networks. We first determine what “ideal" privacy for a routing protocol means in this setting. We observe that protocols achieving this strong privacy definition exist by leveraging Multi-Party Computation but they are inherently inefficient as they must involve the entire network. We then present protocols with weaker privacy guarantees but much better efficiency (involving only a small fraction of the nodes). The core idea is that both sender and receiver gossip a message which propagates through the network, and the moment any node in the network receives both messages, a path is found. In our first protocol the message is always sent to all neighbouring nodes with a delay proportional to the fees of that edge. In our second protocol the message is only sent to one neighbour chosen randomly with a probability proportional to its degree. We additionally propose a more realistic notion of privacy in order to measure the privacy leakage of our protocols in practice. Our realistic notion of privacy challenges an adversary that join the network with a fixed budget to create channels to guess the sender and receiver of a transaction upon receiving messages from our protocols. Simulations of our protocols on the Lightning network topology (for random transactions and uniform fees) show that 1) forming edges with high degree nodes is a more effective attack strategy for the adversary, 2) there is a tradeoff between the number of nodes involved in our protocols (privacy) and the optimality of the discovered path, and 3) our protocols involve a very small fraction of the network on average.}, author = {Avarikioti, Zeta and Bastankhah, Mahsa and Maddah-Ali, Mohammad Ali and Pietrzak, Krzysztof Z and Svoboda, Jakub and Yeo, Michelle X}, booktitle = {Computer Security. ESORICS 2024 International Workshops}, isbn = {9783031823480}, issn = {1611-3349}, location = {Bydgoszcz, Poland}, pages = {207--223}, publisher = {Springer Nature}, title = {{Route discovery in private payment channel networks}}, doi = {10.1007/978-3-031-82349-7_15}, volume = {15263}, year = {2025}, } @article{19601, abstract = {In land plants, the signalling molecule auxin profoundly controls growth and development, chiefly through a transcriptional response system. The auxin response is mediated by modulating the activity of DNA-binding auxin response factor (ARF) proteins. The concentrations and stoichiometry of the competing A- and B-class ARFs define cells’ capacity for auxin response. In the minimal auxin response system of the liverwort Marchantia polymorpha, both A- and B-ARFs are unstable, but the underlying mechanisms, developmental relevance and evolutionary history of this instability are unknown. Here we identify a minimal motif that is necessary for MpARF2 (B-class) degradation and show that it is critical for development and the auxin response. Through comparative analysis and motif swaps among all ARF classes in extant algae and land plants, we infer that the emergence of ARF instability probably occurred in the ancestor of the A- and B-ARF clades and, therefore, preceded or coincided with the origin of the auxin response system.}, author = {De Roij, Martijn and Hernández García, Jorge and Das, Shubhajit and Borst, Jan Willem and Weijers, Dolf}, issn = {2055-0278}, journal = {Nature Plants}, pages = {717--724}, publisher = {Springer Nature}, title = {{ARF degradation defines a deeply conserved step in auxin response}}, doi = {10.1038/s41477-025-01975-1}, volume = {11}, year = {2025}, } @article{19617, abstract = {In this article, we propose a method for generating single microwave photons in superconducting circuits. We theoretically show that pure single microwave photons can be generated on demand and tuned over a large frequency band by making use of Landau-Zener transitions under a rapid sweep of a control parameter. We devise a protocol that enables fast control of the frequency of the emitted photon over two octaves, without requiring extensive calibration. Additionally, we make theoretical estimates of the generation efficiency, tunability, purity, and linewidth of the photons emitted using this method for both charge- and flux-qubit-based architectures. We also provide estimates of the optimal device parameters required for these architectures to realize the device.}, author = {Hawaldar, Samarth and Khaire, Siddhi Satish and Delsing, Per and Suri, Baladitya}, issn = {2331-7019}, journal = {Physical Review Applied}, number = {4}, publisher = {American Physical Society}, title = {{On-demand single-microwave-photon source in a superconducting circuit with wideband frequency tunability}}, doi = {10.1103/physrevapplied.23.044042}, volume = {23}, year = {2025}, } @article{19621, abstract = {In this paper we obtain a complete description of all indecomposable characters (central positive-definite functions) of inductive limits of the symmetric groups under block diagonal embedding. As a corollary we obtain the full classification of the isomorphism classes of these inductive limits.}, author = {Nessonov, Nikolay and Ngo, Nhok T}, issn = {1088-4165}, journal = {Representation Theory}, number = {8}, pages = {256--288}, publisher = {American Mathematical Society}, title = {{Indecomposable characters of inductive limits of symmetric groups}}, doi = {10.1090/ert/689}, volume = {29}, year = {2025}, } @misc{19623, abstract = {Persistent revivals recently observed in Rydberg atom simulators have challenged our understanding of thermalization and attracted much interest to the concept of quantum many-body scars (QMBSs). QMBSs are non-thermal highly excited eigenstates that coexist with typical eigenstates in the spectrum of many-body Hamiltonians, and have since been reported in multiple theoretical models, including the so-called PXP model, approximately realized by Rydberg simulators. At the same time, questions of how common QMBSs are and in what models they are physically realized remain open. In this Letter, we demonstrate that QMBSs exist in a broader family of models that includes and generalizes PXP to longer-range constraints and states with different periodicity. We show that in each model, multiple QMBS families can be found. Each of them relies on a different approximate 𝔰𝔲⁡(2) algebra, leading to oscillatory dynamics in all cases. However, in contrast to the PXP model, their observation requires launching dynamics from weakly entangled initial states rather than from a product state. QMBSs reported here may be experimentally probed using Rydberg atom simulator in the regime of longer-range Rydberg blockades.}, author = {Desaules, Jean-Yves Marc}, keywords = {quantum many-body scars, non-equilibrium physics, Rydberg atoms}, publisher = {Institute of Science and Technology Austria}, title = {{Research Data for "Quantum Many-Body Scars beyond the PXP Model in Rydberg Simulators"}}, doi = {10.15479/AT:ISTA:19623}, year = {2025}, } @article{19625, abstract = {We introduce operator-valued twisted Araki–Woods algebras. These are operator-valued versions of a class of second quantization algebras that includes q-Gaussian and q-Araki–Woods algebras and also generalize Shlyakhtenko’s von Neumann algebras generated by operator-valued semicircular variables. We develop a disintegration theory that reduces the isomorphism type of operator-valued twisted Araki–Woods algebras over type I factors to the scalar-valued case. Moreover, these algebras come with a natural weight, and we characterize its modular theory. We also give sufficient criteria that guarantee the factoriality of these algebras.}, author = {Kumar, R. Rahul and Wirth, Melchior}, issn = {1432-0916}, journal = {Communications in Mathematical Physics}, number = {5}, publisher = {Springer Nature}, title = {{Operator-valued twisted Araki–Woods algebras}}, doi = {10.1007/s00220-025-05285-7}, volume = {406}, year = {2025}, }