Quantum many body scar

Author: ldal

August undefined, 2024

WebIn a recent work [Desaules {et al.},~], we have shown that quantum many-body scars—special low-entropy eigenstates that weakly break ergodicity in nonintegrable systems—arise in spin-S quantum link models that converge to (1 + 1) − D lattice quantum electrodynamics (Schwinger model) in the Kogut–Susskind limit S → ∞. WebJan 10, 2024 · Quantum many-body scarring (QMBS) -- a recently discovered form of weak ergodicity breaking in strongly-interacting quantum systems -- presents opportunities for …

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WebJul 1, 2024 · The discovery of quantum many-body scars (QMBS) both in Rydberg atom simulators and in the Affleck–Kennedy–Lieb–Tasaki spin-1 chain model, have shown that a weak violation of ergodicity can still lead to rich experimental and theoretical physics. WebJul 1, 2024 · Here, we demonstrate that ergodicity can be weakly broken by a different mechanism, arising from the presence of special eigenstates in the many-body spectrum that are reminiscent of quantum scars ... frit thatcher

Prominent quantum many-body scars in a truncated Schwinger …

WebNov 6, 2024 · I will present simple structure underlying many models with quantum many-body scar towers such as the AKLT chain and the spin-1 XY model. In the latter case, the mechanism can be also stated as a particular removal of symmetry, and I will discuss new examples of electronic extended Hubbard models with eta-pairing states as true scars … WebAug 11, 2024 · Quantum Many-Body Scars and Quantum Criticality. Zhiyuan Yao, Lei Pan, Shang Liu, Hui Zhai. In this letter, we study the PXP Hamiltonian with an external magnetic … WebApr 29, 2024 · Quantum many-body scar states are special eigenstates of nonintegrable models with distinctive entanglement features that give rise to infinitely long-lived coherent dynamics under quantum ... fritt himbeere

Many-body Hilbert space scarring on a superconducting processor …

New state of matter in one-dimensional quantum gas - Stanford …

WebMay 27, 2024 · Quantum many-body scars and weak breaking of ergodicity. Maksym Serbyn, Dmitry A. Abanin &. Zlatko Papić. Nature Physics 17 , 675–685 ( 2024) Cite this article. … WebJan 10, 2024 · tems with many-body scars, PRX Quantum 2, 020330 (2024). [22] N. Shiraishi and T. Mori, Systematic construction of coun- terexamples to the eigenstate thermalization hypothesis, fritter weed strainWebAbstract. As a paradigm of weak ergodicity breaking in disorder-free nonintegrable models, quantum many-body scars (QMBS) can offer deep insights into the thermalization dynamics of gauge theories. Having been first discovered in a spin- 1/2 quantum link formulation of the Schwinger model, it is a fundamental question as to whether QMBS persist ... fci answers

"WebOur work demonstrates that correlated fermions in tilted optical lattices provide a platform for understanding the interplay of many-body scarring and other forms of ergodicity breaking, such as localisation and Hilbert space fragmentation. " - Quantum many body scar

Quantum many body scar

WebOct 13, 2024 · Quantum many-body scarring (QMBS) is a recently discovered form of weak ergodicity breaking in strongly interacting quantum systems, which presents opportunities … WebJan 17, 2024 · These eigenstates, referred to as quantum many-body scars (QMBSs), have been identified in prominent models of quantum magnets, such as the Affleck-Kennedy-Lieb-Tasaki (AKLT) model [6][7][8], and ...

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WebDec 19, 2024 · Quantum many-body scar (QMBS) and quantum integrability (QI) have been recognized as two distinct mechanisms for the breakdown of eigenstate thermalization … WebMay 14, 2024 · We show that many-body scars appear in the Fibonacci chain, a model with a constrained local Hilbert space that has recently been experimentally realized in a …

WebJun 28, 2024 · Quantum many-body scars states in such a system were first observed experimentally on, where the initial state is N ́eel state. Surprisingly, instead of evolving into a thermal state, the time evolution state oscillates between two N ́eel states. To investigate the Many body scar states, one feasible way to do it is using quantum computers ...

WebJul 1, 2024 · The discovery of quantum many-body scars (QMBS) both in Rydberg atom simulators and in the Affleck–Kennedy–Lieb–Tasaki spin-1 chain model, have shown that … WebNov 18, 2024 · Recent discovery of persistent revivals in quantum simulators based on Rydberg atoms have pointed to the existence of a new type of dynamical behavior that …

WebNov 15, 2024 · Fate of quantum many-body scars in the presence of disorder Nov 2024 Experiments performed on strongly interacting …

WebTo provide a physical example of quantum scars, we study the many-body scars in the spin-1 Kitaev chain where the so-called PXP Hamiltonian is exactly embedded in the spectra. Regarding the conserved quantities, the Hilbert space is fragmented into disconnected subspaces and we explore the associated constrained dynamics. fci annual meetingWebFormation of quantum scars in many-body systems provides a novel mechanism for enhancing coherence of weakly entangled states. At the same time, coherence of edge modes in certain symmetry protected topological … fcia meaningWebJan 23, 2024 · Abstract and Figures. To provide a physical example of quantum scars, we study the many-body scars in the spin-1 Kitaev chain where the so-called PXP Hamiltonian is exactly embedded in the spectra ... fci allenwood medium federal prisonWebAug 11, 2024 · First, we show that the quantum many-body scar states can be tracked to a set of quantum critical states, whose nature can be understood as pair-wisely occupied Fermi sea states. Second, we show ... fci ag3 phase 1 scorecardWebJan 14, 2024 · The Stanford experiment is the first example of the scar state in a many-body quantum gas and only the second ever real-world sighting of the phenomenon. Super and … frit thermostatWebQuantum many-body scars are analogous to the phenomenon of classical scars in single-particle quantum chaos, where scars represent a concentration of some eigenfunctions … fci art showThe area of quantum many-body scars is a subject of active research. Scars have occurred in investigations for potential applications of Rydberg states to quantum computing, specifically acting as qubits for quantum simulation. The particles of the system in an alternating ground state-Rydberg state configuration continually entangled and disentangled rather than remaining entangled and undergoing thermalization. Systems of the same atoms prepared … frit thyroxin