---
res:
  bibo_abstract:
  - Josephson junction (JJ) chains combine the coherence of superconductivity with
    the controllability of microwave-frequency circuits, making them a powerful platform
    for circuit quantum electrodynamics. In this work, we consider a long JJ chain
    that effectively realizes a multimode cavity with nonlinear dispersion and additional
    multimode interactions. Individual modes appearing due to the finite size of the
    chain can be experimentally probed via microwave spectroscopy, both in equilibrium
    and in driven far-from-equilibrium settings. We study the role of multimode interactions
    in degrading internal coherence—observable as excess linewidth—in both equilibrium
    and driven regimes. Focusing on two-into-two mode scattering as the leading relaxation
    process, we classify the relevant scattering processes and derive their expected
    temperature- and frequency-scaling under equilibrium conditions. For experimentally
    relevant parameters, we show that the equilibrium decay rate is dominated by nonresonant
    processes, however, weakly driving a particular set of modes out of equilibrium
    enhances resonant scattering, leading to observable signatures in the distribution
    function and linewidth. Finally, in the strong nonequilibrium regime, we report
    a crossover to a qualitatively different nonequilibrium steady state.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Lucia
      foaf_name: Vigliotti, Lucia
      foaf_surname: Vigliotti
      foaf_workInfoHomepage: http://www.librecat.org/personId=539e1e1a-e604-11ee-a1df-f02b018e5c8c
  - foaf_Person:
      foaf_givenName: Andrew P
      foaf_name: Higginbotham, Andrew P
      foaf_surname: Higginbotham
      foaf_workInfoHomepage: http://www.librecat.org/personId=4AD6785A-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0003-2607-2363
  - foaf_Person:
      foaf_givenName: Maksym
      foaf_name: Serbyn, Maksym
      foaf_surname: Serbyn
      foaf_workInfoHomepage: http://www.librecat.org/personId=47809E7E-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0002-2399-5827
  bibo_doi: 10.1103/cw3m-thsw
  bibo_issue: '19'
  bibo_volume: 114
  dct_date: 2026^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2469-9950
  - http://id.crossref.org/issn/2469-9969
  dct_language: eng
  dct_publisher: American Physical Society@
  dct_title: Plasmon decay and nonequilibrium steady states in Josephson junction
    chains@
...