Quantum many-body scarring from Kramers-Wannier duality

• URL: http://arxiv.org/abs/2508.05403v1
• Date: Thu, 07 Aug 2025 13:55:38 GMT
• Title: Quantum many-body scarring from Kramers-Wannier duality
• Authors: Weslei B. Fontana, Fabrizio G. Oliviero, Yi-Ping Huang,
• Abstract summary: Kramers-Wannier duality has recently gained renewed interest through its reinterpretation as a non-invertible symmetry with a state-level action.<n>We argue that this duality governs the stability of quantum many-body scar states in a nonintegrable model.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Kramers-Wannier duality, a hallmark of the Ising model, has recently gained renewed interest through its reinterpretation as a non-invertible symmetry with a state-level action. Using sequential quantum circuits (SQC), we argue that this duality governs the stability of quantum many-body scar (QMBS) states in a nonintegrable model, depending on whether the dual preserves the embedding conditions for scarring. This is supported by striking agreement between first-order perturbation theory and numerics, which capture scar dynamics despite chaotic spectra. Our results suggest that non-invertible dualities provide both a generative mechanism for new QMBS and a diagnostic for their stability.

Related papers

• Uncertainty-Aware Metabolic Stability Prediction with Dual-View Contrastive Learning [17.967282904452716]
  TrustworthyMS is a novel contrastive learning framework designed for uncertainty-aware metabolic stability prediction.<n>Our results demonstrate that TrustworthyMS outperforms current state-of-the-art methods in terms of predictive performance.
  arXiv  Detail & Related papers  (2025-06-01T10:05:11Z)
• Liouvillean Spectral Transition in Noisy Quantum Many-Body Scars [11.834849388804832]
  We show that scarred eigenmodes of the Liouvillean exhibit a transition reminiscent of spontaneous $mathbbPT$-symmetry breaking as the dephasing strength increases.<n>Remarkably, in platforms such as the XY spin ladder and PXP model of Rydberg atom arrays, the critical dephasing rate shows only weak dependence on the system size.
  arXiv  Detail & Related papers  (2025-04-16T17:55:02Z)
• Theory of the correlated quantum Zeno effect in a monitored qubit dimer [41.94295877935867]
  We show how the competition between two measurement processes give rise to two distinct Quantum Zeno (QZ) regimes.<n>We develop a theory based on a Gutzwiller ansatz for the wavefunction that is able to capture the structure of the Hilbert phase diagram.<n>We show how the two QZ regimes are intimately connected to the topology of the flow of the underlying non-Hermitian Hamiltonian governing the no-click evolution.
  arXiv  Detail & Related papers  (2025-03-28T19:44:48Z)
• Non-stabilizerness of Neural Quantum States [41.94295877935867]
  We introduce a methodology to estimate non-stabilizerness or "magic", a key resource for quantum complexity, with Neural Quantum States (NQS)<n>We study the magic content in an ensemble of random NQS, demonstrating that neural network parametrizations of the wave function capture finite non-stabilizerness besides large entanglement.
  arXiv  Detail & Related papers  (2025-02-13T19:14:15Z)
• Stabilizer Scars [0.0]
  Quantum many-body scars are eigenstates in non-integrable isolated quantum systems. We identify exact analytic scar solutions in a 2 + 1 dimensional lattice gauge theory in a quasi-1d limit as zero-magic stabilizer states.
  arXiv  Detail & Related papers  (2024-11-19T19:00:00Z)
• Quantum many-body scars as remnants of stable many-body periodic orbits [0.0]
  Quantum many-body scars (QMBS) represent a weak ergodicity-breaking phenomenon that defies the common scenario of thermalization in closed quantum systems. I present a counterexample to a conjecture by studying a bosonic model with a large number of flavors.
  arXiv  Detail & Related papers  (2024-10-22T11:48:13Z)
• Stable infinite-temperature eigenstates in SU(2)-symmetric nonintegrable models [0.0]
  A class of nonintegrable bond-staggered models is endowed with a large number of zero-energy eigenstates and possesses a non-Abelian internal symmetry.<n>We show that few-magnon zero-energy states have an exact analytical description, allowing us to build a basis of low-entangled fixed-separation states.
  arXiv  Detail & Related papers  (2024-07-16T17:48:47Z)
• Edge modes and symmetry-protected topological states in open quantum systems [0.0]
  Topological order offers possibilities for processing quantum information which can be immune to imperfections.<n>We utilize this robustness against a wide class of dissipation channels in the Lindblad and quantum formalisms of an open quantum system.<n>Our work thus proposes a novel framework to study the dynamics of dissipative SPT phases and opens the possibility of engineering entangled states relevant to quantum information processing.
  arXiv  Detail & Related papers  (2023-10-13T21:09:52Z)
• Non-Gaussian superradiant transition via three-body ultrastrong coupling [62.997667081978825]
  We introduce a class of quantum optical Hamiltonian characterized by three-body couplings. We propose a circuit-QED scheme based on state-of-the-art technology that implements the considered model.
  arXiv  Detail & Related papers  (2022-04-07T15:39:21Z)
• Prominent quantum many-body scars in a truncated Schwinger model [0.0]
  We show that quantum many-body scars exist in a truncated version of the Schwinger model. Our conclusions can be readily tested in current cold-atom setups.
  arXiv  Detail & Related papers  (2022-04-04T18:00:01Z)
• Quantum nonreciprocal interactions via dissipative gauge symmetry [18.218574433422535]
  One-way nonreciprocal interactions between two quantum systems are typically described by a cascaded quantum master equation. We present a new approach for obtaining nonreciprocal quantum interactions that is completely distinct from cascaded quantum systems.
  arXiv  Detail & Related papers  (2022-03-17T15:34:40Z)
• Transmon platform for quantum computing challenged by chaotic fluctuations [55.41644538483948]
  We investigate the stability of a variant of a many-body localized (MBL) phase for system parameters relevant to current quantum processors. We find that these computing platforms are dangerously close to a phase of uncontrollable chaotic fluctuations.
  arXiv  Detail & Related papers  (2020-12-10T19:00:03Z)
• Exact many-body scars and their stability in constrained quantum chains [55.41644538483948]
  Quantum scars are non-thermal eigenstates characterized by low entanglement entropy. We study the response of these exact quantum scars to perturbations by analysing the scaling of the fidelity susceptibility with system size.
  arXiv  Detail & Related papers  (2020-11-16T19:05:50Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.