Exact thermal eigenstates of nonintegrable spin chains at infinite temperature
Y Chiba, Y Yoneta - Physical Review Letters, 2024 - APS
The eigenstate thermalization hypothesis (ETH) plays a major role in explaining
thermalization of isolated quantum many-body systems. However, there has been no proof …
thermalization of isolated quantum many-body systems. However, there has been no proof …
Sublattice scars and beyond in two-dimensional quantum link lattice gauge theories
In this article, we elucidate the structure and properties of a class of anomalous high-energy
states of matter-free U (1) quantum link gauge theory Hamiltonians using numerical and …
states of matter-free U (1) quantum link gauge theory Hamiltonians using numerical and …
Emergent symmetries in prethermal phases of periodically driven quantum systems
T Banerjee, K Sengupta - Journal of Physics: Condensed Matter, 2025 - iopscience.iop.org
Periodically driven closed quantum systems are expected to eventually heat up to infinite
temperature; reaching a steady state described by a circular orthogonal ensemble …
temperature; reaching a steady state described by a circular orthogonal ensemble …
Subspace-restricted thermalization in a correlated-hop** model with strong Hilbert space fragmentation characterized by irreducible strings
We introduce a one-dimensional correlated-hop** model of spinless fermions in which a
particle can hop between two neighboring sites only if the sites to the left and right of those …
particle can hop between two neighboring sites only if the sites to the left and right of those …
Aspects of Hilbert space fragmentation in the quantum East model: Fragmentation, subspace-restricted quantum scars, and effects of density-density interactions
We investigate a one-dimensional correlated-hop** model of spinless fermions with an
East constraint. We first analytically unravel the complete fragmentation structure of this …
East constraint. We first analytically unravel the complete fragmentation structure of this …
Prethermalization in the PXP model under continuous quasiperiodic driving
Motivated by recent experiments realizing long-lived nonequilibrium states in aperiodically
driven quantum many-body systems, we investigate the dynamics of a quasiperiodically …
driven quantum many-body systems, we investigate the dynamics of a quasiperiodically …
Universal Upper Bound on Ergotropy and No-Go Theorem by the Eigenstate Thermalization Hypothesis
A Hokkyo, M Ueda - Physical Review Letters, 2025 - APS
We show that the maximum extractable work (ergotropy) from a quantum many-body system
is constrained by “local athermality” of an initial state and “local entropy decrease” brought …
is constrained by “local athermality” of an initial state and “local entropy decrease” brought …
Exact generalized Bethe eigenstates of the non-integrable alternating Heisenberg chain
Exact solutions of quantum lattice models serve as useful guides for interpreting physical
phenomena in condensed matter systems. Prominent examples of integrability appear in …
phenomena in condensed matter systems. Prominent examples of integrability appear in …
Tensor networks for non-invertible symmetries in 3+ 1d and beyond
Tensor networks provide a natural language for non-invertible symmetries in general
Hamiltonian lattice models. We use ZX-diagrams, which are tensor network presentations of …
Hamiltonian lattice models. We use ZX-diagrams, which are tensor network presentations of …
Exact volume-law entangled eigenstates in a large class of spin models
Exact solutions for excited states in non-integrable quantum Hamiltonians have revealed
novel dynamical phenomena that can occur in quantum many-body systems. This work …
novel dynamical phenomena that can occur in quantum many-body systems. This work …