Quantum coherences bind to hydrodynamic voids forming polaron-like objects, parametrically enhancing lifetimes and producing subdiffusive Green's functions in charge-conserving dynamics.
Strong-to-weak sym- metry breaking phases in steady states of quantum operations
11 Pith papers cite this work. Polarity classification is still indexing.
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First experimental observation of strong-to-weak spontaneous symmetry breaking in dephased fermionic atoms, detected via long-range Rényi order after a superlattice-driven metal-insulator transition.
The work gives an algebraic criterion for uniqueness of steady states in recurrently time-dependent Lindblad equations and classifies how strong symmetries in Schrödinger versus interaction pictures produce time-independent or oscillating asymptotics.
Constructs Z2-symmetric local dynamics exhibiting strong-to-weak symmetry breaking transitions in 1+1d and 2+1d and introduces a marginal fidelity correlator as a local proxy for the SWSSB order parameter with error bounds under local indistinguishability assumptions.
Develops local diagnostics for strong symmetries and strong-to-weak symmetry breaking via infinite-volume definitions and local charge coherence, introduces von Neumann symmetries, and derives an LSM-type anomaly constraint for quantum spin chains.
A counting argument shows the translation-symmetric fixed-point strong-to-weak SSB mixed state is long-range entangled and cannot be expressed as a mixture of short-range entangled states.
Long-range Rényi-1 SWSSB order implies extensive block-charge variance for continuous symmetries with rapid asymptotic approach, with conditional counterexamples and a new twist overlap correlator separating symmetry channels and linking to skew information.
Symmetry class alone sets SWSSB correlation length growth to exponential (Z2, tc ~ ln L) or algebraic (U(1), tc ~ L^alpha with alpha filling-dependent) in open quantum systems, independent of spectral gap.
Dynamical self-duality in Fibonacci-monitored quantum Ising chains predicts two golden-ratio-related critical lines and protects universal criticality in long-time steady states for weak and projective measurements.
Parametrized isometric tensor networks called skeletons deform abelian string-net fixed points via symmetry conservation and isometry constraints, connecting topological phases through critical points and enabling efficient classical computation of generalized Pauli string expectations.
SW-SSB extends symmetry breaking to mixed states and serves as a unifying perspective connecting topological orders, emergent hydrodynamics, and information-theoretic characterizations of phases in open systems.
citing papers explorer
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Long-lived local quantum coherences from hydrodynamic large deviations
Quantum coherences bind to hydrodynamic voids forming polaron-like objects, parametrically enhancing lifetimes and producing subdiffusive Green's functions in charge-conserving dynamics.
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Observation of Strong-to-Weak Spontaneous Symmetry Breaking in a Dephased Fermi Gas
First experimental observation of strong-to-weak spontaneous symmetry breaking in dephased fermionic atoms, detected via long-range Rényi order after a superlattice-driven metal-insulator transition.
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Theory of Steady States for Lindblad Equations beyond Time-Independence: Classification, Uniqueness and Symmetry
The work gives an algebraic criterion for uniqueness of steady states in recurrently time-dependent Lindblad equations and classifies how strong symmetries in Schrödinger versus interaction pictures produce time-independent or oscillating asymptotics.
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Local diagnostics for strong-to-weak spontaneous symmetry breaking and non-equilibrium phase transitions
Constructs Z2-symmetric local dynamics exhibiting strong-to-weak symmetry breaking transitions in 1+1d and 2+1d and introduces a marginal fidelity correlator as a local proxy for the SWSSB order parameter with error bounds under local indistinguishability assumptions.
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A local description of strong symmetries and strong-to-weak symmetry breaking in quantum many-body systems
Develops local diagnostics for strong symmetries and strong-to-weak symmetry breaking via infinite-volume definitions and local charge coherence, introduces von Neumann symmetries, and derives an LSM-type anomaly constraint for quantum spin chains.
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Translation symmetry-enforced long-range entanglement in mixed states
A counting argument shows the translation-symmetric fixed-point strong-to-weak SSB mixed state is long-range entangled and cannot be expressed as a mixture of short-range entangled states.
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Charge Scrambling in Strong-to-Weak Spontaneous Symmetry Breaking
Long-range Rényi-1 SWSSB order implies extensive block-charge variance for continuous symmetries with rapid asymptotic approach, with conditional counterexamples and a new twist overlap correlator separating symmetry channels and linking to skew information.
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Universal Dynamical Scaling of Strong-to-Weak Spontaneous Symmetry Breaking in Open Quantum Systems
Symmetry class alone sets SWSSB correlation length growth to exponential (Z2, tc ~ ln L) or algebraic (U(1), tc ~ L^alpha with alpha filling-dependent) in open quantum systems, independent of spectral gap.
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Dynamical self-dual criticality in Fibonacci-monitored quantum Ising chains
Dynamical self-duality in Fibonacci-monitored quantum Ising chains predicts two golden-ratio-related critical lines and protects universal criticality in long-time steady states for weak and projective measurements.
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Skeleton of isometric Tensor Network States for Abelian String-Net Models
Parametrized isometric tensor networks called skeletons deform abelian string-net fixed points via symmetry conservation and isometry constraints, connecting topological phases through critical points and enabling efficient classical computation of generalized Pauli string expectations.
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Strong-to-Weak Spontaneous Symmetry Breaking
SW-SSB extends symmetry breaking to mixed states and serves as a unifying perspective connecting topological orders, emergent hydrodynamics, and information-theoretic characterizations of phases in open systems.