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Related papers: Robust Finite-Temperature Many-Body Scarring on a …

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We study the emergence of local reminiscence in the PXP model, a constrained spin system realized in Rydberg atom arrays. The spectrum of this model is characterized by a majority of eigenstates that satisfy the eigenstate thermalization…

Quantum Physics · Physics 2025-10-09 Francesco Perciavalle , Gian Marco Rizzo , Francesco Plastina , Nicola Lo Gullo

We consider a quantum lattice spin model featuring exact quasiparticle towers of eigenstates with low entanglement at finite size, known as quantum many-body scars (QMBS). We show that the states in the neighboring part of the energy…

Strongly Correlated Electrons · Physics 2023-11-13 Lorenzo Gotta , Sanjay Moudgalya , Leonardo Mazza

Quantum many-body scarred systems exhibit atypical dynamical behavior, evading thermalization and featuring periodic state revivals. In this Letter, we investigate the impact of projective measurements on the dynamics in the scar subspace…

Quantum Physics · Physics 2025-03-31 Alessio Paviglianiti , Alessandro Silva

We study the stability of the many-body scars in spin-1/2 fermionic systems under the most typical perturbations in relevant materials. We find that some families of scars are completely insensitive to certain perturbations. In some other…

Strongly Correlated Electrons · Physics 2024-01-10 Patrice Kolb , Kiryl Pakrouski

Studying and controlling quantum many-body interactions is fundamentally important for quantum science and related emerging technologies. Optically addressable solid-state spins offer a promising platform for exploring various quantum…

Quantum Physics · Physics 2024-08-02 Mi Lei , Rikuto Fukumori , Chun-Ju Wu , Edwin Barnes , Sophia Economou , Joonhee Choi , Andrei Faraon

Quantum systems of indistinguishable particles are commonly described using the formalism of second quantisation, which relies on the assumption that any admissible quantum state must be either symmetric or anti-symmetric under particle…

Quantum Physics · Physics 2023-07-13 Benjamin Yadin , Benjamin Morris , Kay Brandner

We consider the spectrum of a $U(1)$ quantum link model where gauge fields are realized as $S=1/2$ spins and demonstrate a new mechanism for generating quantum many-body scars (high-energy eigenstates that violate the eigenstate…

Strongly Correlated Electrons · Physics 2021-06-08 Debasish Banerjee , Arnab Sen

We present an interpretation of scar states and quantum revivals as weakly "broken" representations of Lie algebras spanned by a subset of eigenstates of a many-body quantum system. We show that the PXP model, describing…

Strongly Correlated Electrons · Physics 2020-05-06 Kieran Bull , Jean-Yves Desaules , Zlatko Papic

A highly anticipated application for quantum computers is as a universal simulator of quantum many-body systems, as was conjectured by Richard Feynman in the 1980s. The last decade has witnessed the growing success of quantum computing for…

We introduce a class of spinless fermion models that exhibit quantum many-body scars (QMBS) originating from kinetic constraints in the form of density-assisted hopping. The models can be defined on any lattice in any dimension and allow…

Quantum Physics · Physics 2022-10-13 Kensuke Tamura , Hosho Katsura

We face the problem of detecting and featuring footprints of quantum criticality in the finite-temperature behavior of quantum many-body systems. Our strategy is that of comparing the phase diagram of a system displaying a T=0 quantum phase…

Statistical Mechanics · Physics 2007-08-09 Alessandro Cuccoli , Alessio Taiti , Ruggero Vaia , Paola Verrucchi

Quantum many-body scars have been put forward as counterexamples to the Eigenstate Thermalization Hypothesis. These atypical states are observed in a range of correlated models as long-lived oscillations of local observables in quench…

Statistical Mechanics · Physics 2021-10-13 Hongzheng Zhao , Adam Smith , Florian Mintert , Johannes Knolle

Quantum many-body scars (QMBS) represent a weak ergodicity-breaking phenomenon that defies the common scenario of thermalization in closed quantum systems. They are often regarded as a many-body analog of quantum scars (QS) -- a…

Quantum Physics · Physics 2024-10-24 Keita Omiya

The recent advancement of quantum computer hardware offers the potential to simulate quantum many-body systems beyond the capability of its classical counterparts. However, most current works focus on simulating the ground-state properties…

Quantum Physics · Physics 2022-06-14 Chee Kong Lee , Shi-Xin Zhang , Chang-Yu Hsieh , Shengyu Zhang , Liang Shi

Thermodynamics of quantum systems and quantum thermal machines are rapidly developing fields, which have already delivered several promising results, as well as raised many intriguing questions. Many-body quantum machines present new…

Quantum Physics · Physics 2021-09-22 Victor Mukherjee , Uma Divakaran

Quantum many-body scars are eigenstates in non-integrable isolated quantum systems that defy typical thermalization paradigms, violating the eigenstate thermalization hypothesis and quantum ergodicity. We identify exact analytic scar…

Quantum Physics · Physics 2025-09-25 Jeremy Hartse , Lukasz Fidkowski , Niklas Mueller

Rydberg atom array has been established as one appealing platform for quantum simulation and quantum computation. Recent experimental development of trapping and controlling two-species atoms using optical tweezer arrays has brought more…

Quantum Gases · Physics 2024-08-29 Lei-Yi-Nan Liu , Shun-Yao Yu , Shi-Rong Peng , Jie Sheng , Su Yi , Peng Xu , Shou-Shu Gong , Tao Shi , Jian Cui

Thermalization in highly excited quantum many-body system does not necessarily mean a complete memory loss of the way the system was formed. This effect may pave a way for a quantum computing, with a large number of qubits $n\simeq…

Quantum Physics · Physics 2008-12-19 M. Bienert , J. Flores , S. Yu. Kun , T. H. Seligman

Quantum many-body scars (QMBS) serve as important examples of ergodicity-breaking phenomena in quantum many-body systems. Despite recent extensive studies, exact QMBS are rare in dimensions higher than one. In this paper, we study a…

Strongly Correlated Electrons · Physics 2025-10-09 Yuan Miao , Linhao Li , Hosho Katsura , Masahito Yamazaki

Motivated by recent observations of ergodicity breaking due to Hilbert space fragmentation in 1D Fermi-Hubbard chains with a tilted potential [Scherg et al., arXiv:2010.12965], we show that the same system also hosts quantum many-body scars…

Strongly Correlated Electrons · Physics 2021-08-16 Jean-Yves Desaules , Ana Hudomal , Christopher J. Turner , Zlatko Papić