{
  "checked_utc_date": "2026-10-13",
  "selection": "Primary papers only; literature supports implementation boundaries, not claims of exotic vacuum manipulation or AI advantage.",
  "sources": [
    {
      "key": "phys_callen",
      "authors": "Herbert B. Callen and Theodore A. Welton",
      "title": "Irreversibility and Generalized Noise",
      "year": 1951,
      "journal": "Physical Review 83, 34\u201340",
      "doi": "10.1103/PhysRev.83.34",
      "url": "https://journals.aps.org/pr/abstract/10.1103/PhysRev.83.34",
      "verified": "Publisher metadata and abstract opened; establishes dissipative response/fluctuation relation.",
      "supports": "Equilibrium response and noise are coupled; detailed device model is still necessary.",
      "novelty_boundary": "VSCE does not invent fluctuation\u2013dissipation. Matrix OU compatibility examples in the chapter are direct model algebra."
    },
    {
      "key": "phys_pusz",
      "authors": "W. Pusz and S. L. Woronowicz",
      "title": "Passive states and KMS states for general quantum systems",
      "year": 1978,
      "journal": "Communications in Mathematical Physics 58, 273\u2013290",
      "doi": "10.1007/BF01614224",
      "url": "https://link.springer.com/article/10.1007/BF01614224",
      "verified": "Publisher metadata and abstract opened; abstract states complete passivity of ground and beta-KMS states.",
      "supports": "Equilibrium ground states and KMS states are completely passive under the paper's assumptions.",
      "novelty_boundary": "No vacuum fuel or net cyclic work extraction claim follows from driven state engineering."
    },
    {
      "key": "phys_mirrahimi",
      "authors": "Mazyar Mirrahimi, Zaki Leghtas, Victor V. Albert, Steven Touzard, Robert J. Schoelkopf, Liang Jiang, and Michel H. Devoret",
      "title": "Dynamically protected cat-qubits: a new paradigm for universal quantum computation",
      "year": 2014,
      "journal": "New Journal of Physics 16, 045014",
      "doi": "10.1088/1367-2630/16/4/045014",
      "url": "https://arxiv.org/abs/1312.2017",
      "verified": "Author preprint metadata and abstract opened; publication DOI and journal reference verified.",
      "supports": "Two- and four-photon reservoir-engineered cat encodings and prior protected-gate architectures.",
      "novelty_boundary": "Neither cat-state encoding nor multiphoton stabilization is a VSCE invention."
    },
    {
      "key": "phys_leghtas",
      "authors": "Zaki Leghtas et al.",
      "title": "Confining the state of light to a quantum manifold by engineered two-photon loss",
      "year": 2015,
      "journal": "Science 347, 853\u2013857",
      "doi": "10.1126/science.aaa2085",
      "url": "https://arxiv.org/abs/1412.4633",
      "verified": "Author preprint metadata and abstract opened; experimental two-photon-loss confinement described.",
      "supports": "Experimentally realized two-coherent-state quantum manifold in superconducting microwave hardware.",
      "novelty_boundary": "This establishes relevant hardware precedent, not performance or implementation of VSCE."
    },
    {
      "key": "phys_albert",
      "authors": "Victor V. Albert, Chi Shu, Stefan Krastanov, Chao Shen, Ren-Bao Liu, Zhen-Biao Yang, Robert J. Schoelkopf, Mazyar Mirrahimi, Michel H. Devoret, and Liang Jiang",
      "title": "Holonomic Quantum Control with Continuous Variable Systems",
      "year": 2016,
      "journal": "Physical Review Letters 116, 140502",
      "doi": "10.1103/PhysRevLett.116.140502",
      "url": "https://arxiv.org/abs/1503.00194",
      "fulltext_url": "https://arxiv.org/html/1503.00194v4",
      "verified": "Author metadata and full-text equation (1) opened; polynomial jump and movable coherent-state roots explicitly present.",
      "supports": "Polynomial jump operators with coherent-state dark roots; established holonomic loop, collision, and entangling oscillator gates.",
      "novelty_boundary": "Direct antecedent to the proposed VSCE quantum adapter. The adapter must not be marketed as a new encoding or new root-holonomy idea."
    },
    {
      "key": "phys_macieszczak",
      "authors": "Katarzyna Macieszczak, M\u0103d\u0103lin Gu\u0163\u0103, Igor Lesanovsky, and Juan P. Garrahan",
      "title": "Towards a Theory of Metastability in Open Quantum Dynamics",
      "year": 2016,
      "journal": "Physical Review Letters 116, 240404",
      "doi": "10.1103/PhysRevLett.116.240404",
      "url": "https://arxiv.org/abs/1512.05801",
      "verified": "Author preprint metadata and abstract opened; separation of generator spectral scales and metastable manifold described.",
      "supports": "Spectral separation and low-dimensional slow manifolds in Markovian open quantum systems.",
      "novelty_boundary": "Metastability is established; VSCE must supply its own model-specific certification."
    },
    {
      "key": "phys_grimm",
      "authors": "Alexander Grimm et al.",
      "title": "Stabilization and operation of a Kerr-cat qubit",
      "preprint_title": "The Kerr-Cat Qubit: Stabilization, Readout, and Gates",
      "year": 2020,
      "journal": "Nature 584, 205\u2013209",
      "doi": "10.1038/s41586-020-2587-z",
      "url": "https://arxiv.org/abs/1907.12131",
      "verified": "Author preprint abstract and publication reference opened. Published title differs from preprint title.",
      "supports": "Experimentally demonstrated Kerr-cat stabilization, coherent gate control, and readout.",
      "novelty_boundary": "Kerr-cat hardware and its computational control precede VSCE."
    },
    {
      "key": "phys_gautier",
      "authors": "Ronan Gautier, Alain Sarlette, and Mazyar Mirrahimi",
      "title": "Combined Dissipative and Hamiltonian Confinement of Cat Qubits",
      "year": 2022,
      "journal": "PRX Quantum 3, 020339",
      "doi": "10.1103/PRXQuantum.3.020339",
      "url": "https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.3.020339",
      "verified": "Publisher metadata, author list, and abstract opened.",
      "supports": "Tradeoffs between Hamiltonian and dissipative confinement; combined two-photon-exchange scheme and noise-biased gates.",
      "novelty_boundary": "Combined cat-qubit confinement is prior art, not a VSCE proposal."
    },
    {
      "key": "phys_wilson",
      "authors": "C. M. Wilson, G. Johansson, A. Pourkabirian, M. Simoen, J. R. Johansson, T. Duty, F. Nori, and P. Delsing",
      "title": "Observation of the dynamical Casimir effect in a superconducting circuit",
      "year": 2011,
      "journal": "Nature 479, 376\u2013379",
      "doi": "10.1038/nature10561",
      "url": "https://arxiv.org/abs/1105.4714",
      "verified": "Author preprint metadata opened; publisher abstract/metadata returned by primary-source search.",
      "supports": "Driven superconducting boundary modulation provides a genuine vacuum-field engineering precedent.",
      "novelty_boundary": "Does not imply free equilibrium vacuum energy, VSCE computation, or cosmological false-vacuum manipulation."
    },
    {
      "key": "phys_roberts",
      "authors": "David Roberts and Aashish A. Clerk",
      "title": "Driven-Dissipative Quantum Kerr Resonators: New Exact Solutions, Photon Blockade and Quantum Bistability",
      "year": 2020,
      "journal": "Physical Review X 10, 021022",
      "doi": "10.1103/PhysRevX.10.021022",
      "url": "https://journals.aps.org/prx/abstract/10.1103/PhysRevX.10.021022",
      "verified": "Publisher metadata, author list, and abstract opened.",
      "supports": "Established driven dissipative nonlinear-oscillator models, steady-state analysis, and quantum bistability.",
      "novelty_boundary": "A Kerr oscillator's bimodality must not be conflated with the ideal coherent dark code."
    }
  ]
}