{
  "abstract": "Understanding the dynamics of interacting quantum fields remains a fundamental challenge. We propose a superconducting transmission line for analog quantum simulation of $(1+1)$-dimensional $ϕ^4$ field theory. The transmission line comprises fluxonium-like circuit elements whose continuous and unbounded phase variables encode a scalar field without Hilbert-space truncation. Their anharmonic potentials provide strong interactions. Tuning the circuit parameters provides access to two distinct regimes. In the first, the transmission line emulates $ϕ^4$ field theory with a single-well potential. We confirm this correspondence through lattice Monte Carlo calculations of the low-energy spectra of both the circuit and lattice $ϕ^4$ theory. This regime enables scattering experiments between counter-propagating particle wave packets. The second parameter set yields a double-well potential that emulates $ϕ^4$ theory in the symmetry-broken phase and hosts degenerate vacua. Interfaces between the two vacua form topological kinks, and the transmission line can simulate kink-antikink collisions. We present state preparation and measurement protocols for both collision experiments, enabling spatially resolved, real-time studies of particle and soliton scattering in an interacting quantum field theory.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.11071",
  "author_total": 7,
  "authors": [
    {
      "name": "Ilan T. Rosen"
    },
    {
      "name": "Neill C. Warrington"
    },
    {
      "name": "Max Hays"
    },
    {
      "name": "Christopher McNally"
    },
    {
      "name": "Joshua Lin"
    },
    {
      "name": "Stephen Sorokanich III"
    },
    {
      "name": "Julian Bender"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/fbnc77adddrx1.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.11071",
  "fulltext_url": null,
  "id": "fbnc77adddrx1",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.11071",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.mes-hall"
    ],
    [
      "arxiv",
      "hep-lat"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Information and Cryptography"
    ]
  ],
  "openalex": "W7221111784",
  "pdf_url": "https://arxiv.org/pdf/2610.11071",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/fbnc77adddrx1.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:54Z",
      "native_id": "2610.11071",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.11071"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.mes-hall",
      "subfield": "condensed-matter"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-lat",
      "subfield": "high-energy"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Analog quantum simulation of $ϕ^4$ field theory with a superconducting transmission line",
  "title_text": "Analog quantum simulation of ϕ^4 field theory with a superconducting transmission line",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:54Z",
  "url": "https://research.draconitic.com/paper/fbnc77adddrx1",
  "venue": "arXiv",
  "versions": []
}