---
res:
  bibo_abstract:
  - Enhancing interactions in many-body quantum systems, while protecting them from
    environmental decoherence, is at the heart of many quantum technologies. Waveguide
    quantum electrodynamics is a promising platform for achieving this, as it hosts
    infinite-range interactions and decoherence-free subspaces of quantum emitters.
    However, as coherent interactions between emitters are typically washed out in
    the wavelength-spacing regime hosting decoherence-free states, coherent control
    over the latter becomes limited, and many-body Hamiltonians in this important
    regime remain out of reach. Here we show that by incorporating emitter arrays
    with nonlinear waveguides hosting parametric gain, we obtain a unique class of
    many-body interaction Hamiltonians with coupling strengths that increase with
    emitter spacing, and persist even for wavelength-spaced arrays. We then propose
    to use these Hamiltonians to coherently generate decoherence-free states directly
    from the ground state, using only global squeezing drives, without the need for
    local addressing of individual emitters. Interestingly, we find that the dynamics
    approaches a unitary evolution in the limit of weak intrawaveguide squeezing,
    and we discuss potential experimental realizations of this effect. Our results
    pave the way towards coherent control protocols in waveguide quantum electrodynamics,
    with applications including quantum computing, simulation, memory, and nonclassical
    light generation.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Aviv
      foaf_name: Karnieli, Aviv
      foaf_surname: Karnieli
  - foaf_Person:
      foaf_givenName: Offek
      foaf_name: Tziperman, Offek
      foaf_surname: Tziperman
  - foaf_Person:
      foaf_givenName: Charles
      foaf_name: Roques-Carmes, Charles
      foaf_surname: Roques-Carmes
      foaf_workInfoHomepage: http://www.librecat.org/personId=e2e68fc9-6505-11ef-a541-eb4e72cc3e82
  - foaf_Person:
      foaf_givenName: Shanhui
      foaf_name: Fan, Shanhui
      foaf_surname: Fan
  bibo_doi: 10.1103/physrevresearch.7.l012014
  bibo_issue: '1'
  bibo_volume: 7
  dct_date: 2025^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/2643-1564
  dct_language: eng
  dct_publisher: American Physical Society @
  dct_title: Decoherence-free many-body Hamiltonians in nonlinear waveguide quantum
    electrodynamics@
...