Condensed Matter · Physics & Astronomy
Strongly Correlated Electrons
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219 papers, from 7 September 2026 to 5 November 2026: 219 arXiv preprints.
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Newest papers
Frustration-freeness is decidable but unprovable
The frustration-free property is valuable in quantum many-body systems, which states that its ground states simultaneously minimize all local interaction terms, even when these terms act on…Observable-Based Learning of Effective Entanglement Hamiltonians
Determining the entanglement Hamiltonian (EH) of an interacting quantum many-body system remains a fundamental challenge beyond special analytically tractable cases.Extensions of the Haldane gap proof: higher dimensions, near degeneracy, fermions and tensor-network states
A recent remarkable paper by OpenAI showed that the spin-one Heisenberg chain with periodic boundary conditions has a spectral gap in the thermodynamic limit.Monopoles, Scattering and Generalized Symmetries on a Quantum Computer
Quantum computers have advanced to the stage that interesting many-body quantum phenomena can be observed.Dualities in one-dimensional quantum lattice models: Lie groups, Schur-Weyl duality and symmetry breaking
We present a systematic framework for gauging continuous symmetries, and show that the Schur-Weyl duality arises naturally as a realization of this construction with open boundary conditions.Disorder-blind Mpemba acceleration of quantum state preparation
Using the strong Mpemba effect to accelerate relaxation by initial-state design requires suppressing the slowest mode, which typically needs prior knowledge of the system.Dynamical effects induced by synthetic SU(1,1) gauge fields
Compact gauge fields are powerful tools for controlling quantum dynamics and topological phases of matter.Provable circuit-level thresholds for non-abelian topological phases
We provide an explicit scheme to realize a quantum memory in any 2D non-chiral topological order.Rotated-Frame Determinant Discovery for Ground- and Excited-State Quantum Selected Configuration Interaction
Quantum Selected Configuration Interaction (QSCI) constructs a variational determinant space from measurements of a prepared electronic state, but finite-shot sampling can repeatedly observe…Statistical mechanics and hierarchy of learnability in quantum codes: From generalized symmetries to non-Abelian topological orders
Local weak measurements provide noisy information about observables encoded in a quantum code.Spatial Cost of Recovering a Fusion Qubit in a Critical Spin Chain
Vanishing-error recovery of a fusion qubit from a fixed-sector ground doublet of four Kramers--Wannier defects in a critical Ising chain requires at least the shorter three-defect span of physical…Stability of energy gap of macroscopic quantum matter
In quantum many-body physics and quantum field theory, it is often assumed that gapped systems remain gapped under sufficiently weak local perturbations.Multipartite Entanglement, TQFT Partition Functions and PL Bordism
In a previous work we conjectured that the multi-invariants of the ground state of a gapped $(d-1)+1$-dimensional system, labeled by bipartite $(d+1)$-edge-colored graphs encoding closed oriented…On Entanglement Dynamics in Holographic Theories
Entanglement entropy (EE) is central to modern theoretical physics, yet its calculation in interacting theories with nontrivial time dependence remains challenging.Threshold-Free Symmetry-Enriched Topological Quantum Memory
We show that non-Abelian symmetry enrichment can protect a toric code memory against incoherent electric noise at any bond error probability $p\in[0,1]$.Single-shot ground-state preparation via strongly coupled baths
Preparing ground and thermal states of quantum many-body systems is a central task in quantum simulation.Agnostic and efficient detection of $\mathbb{Z}_2$ symmetry-protected topological phases in projected entangled-pair states
Symmetry-protected topological (SPT) phases are the simplest example of quantum phases that cannot be detected by local order parameters.On the universality of entanglement entropy in quantum field theory
The standard definition of entanglement entropy in quantum field theory requires regularizing the entangling surface and factorizing the Hilbert space, which in turn involves a choice of boundary…An example of universal braiding in Links--Gould topological quantum computation
We construct a universal quantum computational encoding via braiding in Links--Gould fusion spaces associated to $U_q^H(\mathfrak{sl}(2|1))$ where $q$ is on the unit circle and is not a root of unity.LaQX: A JAX Toolkit for Neural Quantum State Simulations of Lattice Quantum Many-Body Models
Neural quantum states provide accurate variational representations for interacting lattice fermions and spins.