---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20324'
abstract:
- lang: eng
text: We report relaxation oscillations in a one-dimensional array of Josephson
junctions, wherein the array dynamically switches between low-current and high-current
states. The oscillations are current-voltage dual to those ordinarily observed
in single junctions. The current-voltage dual circuit quantitatively accounts
for temporal dynamics of the array, including the dependence on biasing conditions.
Injection locking of the oscillations results in well-developed current plateaux.
A thermal model explains the self-consistent reduction of the superconducting
gap due to overheating of the array in the high-current state. Our work suggests
that overheating determines the switching from the high-current state to the low-current
state.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: We gratefully acknowledge support from the Miba Machine Shop and
the Nanofabrictation Facility at IST Austria. This work was supported by the Austrian
FWF under Grant No. P33692-N (S.M., J.S., and A.P.H.), the European Union’s Horizon
2020 research and innovation program under Marie Skłodowska-Curie Grant Agreement
No. 754411 (J.S.), and a NOMIS Foundation research grant (A.P.H.).
article_number: '014035'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Soham
full_name: Mukhopadhyay, Soham
id: FDE60288-A89D-11E9-947F-1AF6E5697425
last_name: Mukhopadhyay
orcid: 0000-0001-5263-5559
- first_name: Diego A
full_name: Lancheros Naranjo, Diego A
id: 6c55e976-15b2-11ec-abd3-d790e8937fde
last_name: Lancheros Naranjo
- first_name: Jorden L
full_name: Senior, Jorden L
id: 5479D234-2D30-11EA-89CC-40953DDC885E
last_name: Senior
orcid: 0000-0002-0672-9295
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
citation:
ama: Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. Dual relaxation
oscillations in a Josephson-junction array. Physical Review Applied. 2025;24.
doi:10.1103/qvls-7s3q
apa: Mukhopadhyay, S., Lancheros Naranjo, D. A., Senior, J. L., & Higginbotham,
A. P. (2025). Dual relaxation oscillations in a Josephson-junction array. Physical
Review Applied. American Physical Society. https://doi.org/10.1103/qvls-7s3q
chicago: Mukhopadhyay, Soham, Diego A Lancheros Naranjo, Jorden L Senior, and Andrew
P Higginbotham. “Dual Relaxation Oscillations in a Josephson-Junction Array.”
Physical Review Applied. American Physical Society, 2025. https://doi.org/10.1103/qvls-7s3q.
ieee: S. Mukhopadhyay, D. A. Lancheros Naranjo, J. L. Senior, and A. P. Higginbotham,
“Dual relaxation oscillations in a Josephson-junction array,” Physical Review
Applied, vol. 24. American Physical Society, 2025.
ista: Mukhopadhyay S, Lancheros Naranjo DA, Senior JL, Higginbotham AP. 2025. Dual
relaxation oscillations in a Josephson-junction array. Physical Review Applied.
24, 014035.
mla: Mukhopadhyay, Soham, et al. “Dual Relaxation Oscillations in a Josephson-Junction
Array.” Physical Review Applied, vol. 24, 014035, American Physical Society,
2025, doi:10.1103/qvls-7s3q.
short: S. Mukhopadhyay, D.A. Lancheros Naranjo, J.L. Senior, A.P. Higginbotham,
Physical Review Applied 24 (2025).
corr_author: '1'
date_created: 2025-09-10T05:41:30Z
date_published: 2025-07-17T00:00:00Z
date_updated: 2025-12-11T10:47:34Z
day: '17'
ddc:
- '530'
department:
- _id: GradSch
- _id: AnHi
doi: 10.1103/qvls-7s3q
ec_funded: 1
external_id:
arxiv:
- '2408.07829 '
isi:
- '001537333100001'
file:
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checksum: 6cc3c9beeb7c0a88ee0a072c9a32b78b
content_type: application/pdf
creator: dernst
date_created: 2025-09-10T07:29:06Z
date_updated: 2025-09-10T07:29:06Z
file_id: '20335'
file_name: 2025_PhysReviewAppl_Mukhopadhyay.pdf
file_size: 1370466
relation: main_file
success: 1
file_date_updated: 2025-09-10T07:29:06Z
has_accepted_license: '1'
intvolume: ' 24'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 0aa3608a-070f-11eb-9043-e9cd8a2bd931
grant_number: P33692
name: Cavity electromechanics across a quantum phase transition
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: eb9b30ac-77a9-11ec-83b8-871f581d53d2
name: Protected states of quantum matter
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
record:
- id: '18057'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Dual relaxation oscillations in a Josephson-junction array
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2025'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19617'
abstract:
- lang: eng
text: 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.
acknowledgement: The authors acknowledge the support of DST-INSPIRE Fellowship No.
IF180339 and DST-SERB Core Research Grant No. CRG/2018/002129. S.H. acknowledges
the support of the Kishore Vaigyanik Protsahan Yojana (KVPY). S.H. also acknowledges
helpful discussions with Harsh Arora and Johannes Fink.
article_number: '044042'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Samarth
full_name: Hawaldar, Samarth
id: 221708e1-1ff6-11ee-9fa6-85146607433e
last_name: Hawaldar
orcid: 0000-0002-1965-4309
- first_name: Siddhi Satish
full_name: Khaire, Siddhi Satish
last_name: Khaire
- first_name: Per
full_name: Delsing, Per
last_name: Delsing
- first_name: Baladitya
full_name: Suri, Baladitya
last_name: Suri
citation:
ama: Hawaldar S, Khaire SS, Delsing P, Suri B. On-demand single-microwave-photon
source in a superconducting circuit with wideband frequency tunability. Physical
Review Applied. 2025;23(4). doi:10.1103/physrevapplied.23.044042
apa: Hawaldar, S., Khaire, S. S., Delsing, P., & Suri, B. (2025). On-demand
single-microwave-photon source in a superconducting circuit with wideband frequency
tunability. Physical Review Applied. American Physical Society. https://doi.org/10.1103/physrevapplied.23.044042
chicago: Hawaldar, Samarth, Siddhi Satish Khaire, Per Delsing, and Baladitya Suri.
“On-Demand Single-Microwave-Photon Source in a Superconducting Circuit with Wideband
Frequency Tunability.” Physical Review Applied. American Physical Society,
2025. https://doi.org/10.1103/physrevapplied.23.044042.
ieee: S. Hawaldar, S. S. Khaire, P. Delsing, and B. Suri, “On-demand single-microwave-photon
source in a superconducting circuit with wideband frequency tunability,” Physical
Review Applied, vol. 23, no. 4. American Physical Society, 2025.
ista: Hawaldar S, Khaire SS, Delsing P, Suri B. 2025. On-demand single-microwave-photon
source in a superconducting circuit with wideband frequency tunability. Physical
Review Applied. 23(4), 044042.
mla: Hawaldar, Samarth, et al. “On-Demand Single-Microwave-Photon Source in a Superconducting
Circuit with Wideband Frequency Tunability.” Physical Review Applied, vol.
23, no. 4, 044042, American Physical Society, 2025, doi:10.1103/physrevapplied.23.044042.
short: S. Hawaldar, S.S. Khaire, P. Delsing, B. Suri, Physical Review Applied 23
(2025).
corr_author: '1'
date_created: 2025-04-24T06:34:07Z
date_published: 2025-04-18T00:00:00Z
date_updated: 2025-09-30T12:17:33Z
day: '18'
ddc:
- '539'
department:
- _id: GradSch
- _id: JoFi
doi: 10.1103/physrevapplied.23.044042
external_id:
isi:
- '001490745300002'
file:
- access_level: open_access
checksum: 582b2ed6afb654300cabf0e3add14ca8
content_type: application/pdf
creator: shawalda
date_created: 2025-04-24T06:40:22Z
date_updated: 2025-04-24T06:40:22Z
file_id: '19620'
file_name: PhysRevApplied.23.044042.pdf
file_size: 837219
relation: main_file
success: 1
file_date_updated: 2025-04-24T06:40:22Z
has_accepted_license: '1'
intvolume: ' 23'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: On-demand single-microwave-photon source in a superconducting circuit with
wideband frequency tunability
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 23
year: '2025'
...
---
OA_place: repository
OA_type: green
_id: '21560'
abstract:
- lang: eng
text: Scintillation describes the conversion of high-energy particles into light
in transparent media and finds diverse applications such as high-energy particle
detection and industrial and medical imaging. This process operates on multiple
timescales, with the final radiative step consisting of spontaneous emission,
which can be modeled within the framework of quasiequilibrium fluctuational electrodynamics.
Scintillation can therefore be controlled and enhanced via nanophotonic effects,
which has been proposed and experimentally demonstrated. Such designs have thus
far obeyed Lorentz reciprocity, meaning there is a direct equivalence between
scintillation emission and absorption by the scintillator. However, scintillators
that do not obey Lorentz reciprocity have not been explored, even though they
represent an alternative platform for probing emission, which is both nonequilibrium
and nonreciprocal in nature. In this work, we propose to harness nonreciprocity
to achieve directional control of scintillation emission, granting an additional
degree of control over scintillation. Such directionality of light output is useful
in improving collection efficiencies along the directions where detectors are
located. We present the design of a nonreciprocal scintillator using a one-dimensional
magnetophotonic crystal in the Voigt configuration. Our work demonstrates the
potential of controlling nonequilibrium such as scintillation by breaking reciprocity
and expands the space of nanophotonic design for achieving such control.
article_number: '054062'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Olivia Y.
full_name: Long, Olivia Y.
last_name: Long
- first_name: Simo
full_name: Pajovic, Simo
last_name: Pajovic
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Yoichiro
full_name: Tsurimaki, Yoichiro
last_name: Tsurimaki
- first_name: Nicholas
full_name: Rivera, Nicholas
last_name: Rivera
- first_name: Marin
full_name: Soljačić, Marin
last_name: Soljačić
- first_name: Svetlana V.
full_name: Boriskina, Svetlana V.
last_name: Boriskina
- first_name: Shanhui
full_name: Fan, Shanhui
last_name: Fan
citation:
ama: Long OY, Pajovic S, Roques-Carmes C, et al. Nonreciprocal scintillation using
one-dimensional magneto-optical photonic crystals. Physical Review Applied.
2024;22(5). doi:10.1103/physrevapplied.22.054062
apa: Long, O. Y., Pajovic, S., Roques-Carmes, C., Tsurimaki, Y., Rivera, N., Soljačić,
M., … Fan, S. (2024). Nonreciprocal scintillation using one-dimensional magneto-optical
photonic crystals. Physical Review Applied. American Physical Society.
https://doi.org/10.1103/physrevapplied.22.054062
chicago: Long, Olivia Y., Simo Pajovic, Charles Roques-Carmes, Yoichiro Tsurimaki,
Nicholas Rivera, Marin Soljačić, Svetlana V. Boriskina, and Shanhui Fan. “Nonreciprocal
Scintillation Using One-Dimensional Magneto-Optical Photonic Crystals.” Physical
Review Applied. American Physical Society, 2024. https://doi.org/10.1103/physrevapplied.22.054062.
ieee: O. Y. Long et al., “Nonreciprocal scintillation using one-dimensional
magneto-optical photonic crystals,” Physical Review Applied, vol. 22, no.
5. American Physical Society, 2024.
ista: Long OY, Pajovic S, Roques-Carmes C, Tsurimaki Y, Rivera N, Soljačić M, Boriskina
SV, Fan S. 2024. Nonreciprocal scintillation using one-dimensional magneto-optical
photonic crystals. Physical Review Applied. 22(5), 054062.
mla: Long, Olivia Y., et al. “Nonreciprocal Scintillation Using One-Dimensional
Magneto-Optical Photonic Crystals.” Physical Review Applied, vol. 22, no.
5, 054062, American Physical Society, 2024, doi:10.1103/physrevapplied.22.054062.
short: O.Y. Long, S. Pajovic, C. Roques-Carmes, Y. Tsurimaki, N. Rivera, M. Soljačić,
S.V. Boriskina, S. Fan, Physical Review Applied 22 (2024).
date_created: 2026-03-30T12:22:47Z
date_published: 2024-11-22T00:00:00Z
date_updated: 2026-04-27T10:38:50Z
day: '22'
doi: 10.1103/physrevapplied.22.054062
extern: '1'
external_id:
arxiv:
- '2409.17002'
intvolume: ' 22'
issue: '5'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2409.17002
month: '11'
oa: 1
oa_version: Preprint
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nonreciprocal scintillation using one-dimensional magneto-optical photonic
crystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 22
year: '2024'
...
---
_id: '11438'
abstract:
- lang: eng
text: Lasers with well-controlled relative frequencies are indispensable for many
applications in science and technology. We present a frequency-offset locking
method for lasers based on beat-frequency discrimination utilizing hybrid electronic
LC filters. The method is specifically designed for decoupling the tightness of
the lock from the broadness of its capture range. The presented demonstration
locks two free-running diode lasers at 780 nm with a 5.5-GHz offset. It displays
an offset frequency instability below 55 Hz for time scales in excess of 1000
s and a minimum of 12 Hz at 10-s averaging. The performance is complemented with
a 190-MHz lock-capture range, a tuning range of up to 1 GHz, and a frequency ramp
agility of 200kHz/μs.
acknowledgement: This work was supported by IST Austria. The authors thank Yueheng
Shi for technical contributions.
article_number: '054031'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Vyacheslav
full_name: Li, Vyacheslav
id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87
last_name: Li
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Li V, Diorico FR, Hosten O. Laser frequency-offset locking at 10-Hz-level instability
using hybrid electronic filters. Physical Review Applied. 2022;17(5). doi:10.1103/physrevapplied.17.054031
apa: Li, V., Diorico, F. R., & Hosten, O. (2022). Laser frequency-offset locking
at 10-Hz-level instability using hybrid electronic filters. Physical Review
Applied. American Physical Society. https://doi.org/10.1103/physrevapplied.17.054031
chicago: Li, Vyacheslav, Fritz R Diorico, and Onur Hosten. “Laser Frequency-Offset
Locking at 10-Hz-Level Instability Using Hybrid Electronic Filters.” Physical
Review Applied. American Physical Society, 2022. https://doi.org/10.1103/physrevapplied.17.054031.
ieee: V. Li, F. R. Diorico, and O. Hosten, “Laser frequency-offset locking at 10-Hz-level
instability using hybrid electronic filters,” Physical Review Applied,
vol. 17, no. 5. American Physical Society, 2022.
ista: Li V, Diorico FR, Hosten O. 2022. Laser frequency-offset locking at 10-Hz-level
instability using hybrid electronic filters. Physical Review Applied. 17(5), 054031.
mla: Li, Vyacheslav, et al. “Laser Frequency-Offset Locking at 10-Hz-Level Instability
Using Hybrid Electronic Filters.” Physical Review Applied, vol. 17, no.
5, 054031, American Physical Society, 2022, doi:10.1103/physrevapplied.17.054031.
short: V. Li, F.R. Diorico, O. Hosten, Physical Review Applied 17 (2022).
corr_author: '1'
date_created: 2022-06-07T08:07:59Z
date_published: 2022-05-19T00:00:00Z
date_updated: 2026-04-07T12:42:28Z
day: '19'
department:
- _id: GradSch
- _id: OnHo
doi: 10.1103/physrevapplied.17.054031
external_id:
arxiv:
- '2111.13194'
isi:
- '000880670300001'
intvolume: ' 17'
isi: 1
issue: '5'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2111.13194'
month: '05'
oa: 1
oa_version: Preprint
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
record:
- id: '17225'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic
filters
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 17
year: '2022'
...