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Quantum many body scar

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 … WebIn most quantum sensing schemes, interactions between the constituent particles of the sensor are expected to degrade sensitivity. We show that the phenomenon of many-body scarring can be exploited for quantum sensing that is robust against certain strong interactions. In the ideal case of perfect scars with harmonic energy gaps, the optimal …

[1711.03528] Quantum many-body scars - arXiv.org

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 … WebOct 25, 2024 · Strongly interacting systems with quantum many-body scars exhibit persistent fidelity oscillations when prepared in a certain class of initial states, but otherwise undergo ergodic dynamics. Previous examples of scars have interpreted the characteristic periodic dynamics in terms of the precession of a macroscopic SU(2) spin in an effective … overalls youtube https://mellittler.com

Quantum Many-Body Scars in Optical Lattices. - Semantic Scholar

WebSep 23, 2024 · These oscillations have been attributed to a special set of nonergodic states, referred to as quantum many-body scars. Although these states have enriched our understanding of thermalization in ... WebMar 27, 2014 · This paper reports on the perception of changing body image and well-being for patients who had undergone plastic surgery following massive weight loss. The exploratory, qualitative study was undertaken with 20 patients from one teaching hospital in the south of England. Semi-structured interviews were carried out and a thematic analysis … 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 … rallye marcillac 2023

Topologically stable ergodicity breaking from emergent higher …

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

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Quantum many body scar

Weak ergodicity breaking from quantum many-body scars

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

Quantum many body scar

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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 ... WebFeb 5, 2024 · The concept of quantum many-body scars has recently been put forward as a route to describe weak ergodicity breaking and violation of the eigenstate thermalization hypothesis. We propose a simple setup to generate quantum many-body scars in a doubly modulated Bose-Hubbard system which can be readily implemented in cold atomic gases.

WebQuantum Many-Body Scars. A state that is likely to exist in unstable classical periodic orbits in classically chaotic systems is called a scar. The name "scar" comes from the fact that … WebJan 10, 2024 · Quantum many-body scarring (QMBS) -- a recently discovered form of weak ergodicity breaking in strongly-interacting quantum systems -- presents opportunities for …

WebApr 12, 2024 · Quantum many-body scars [6{9] provide yet another example, without any conservation laws (but generically also without any notion of robustness). Still more recently, it was realized that the interplay of nitely many ‘multipolar’ conservation laws could break ergodicity [10], a result that was Quantum many-body scars C. J. Turner1, A. A. Michailidis1, D. A. Abanin2, M. …

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 → ∞. overall tank topWebJul 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 … rallye maths mhm cp manche 1WebAbstract. 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 ... rallye maths heroWebAug 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 … rallye math de la sartheWebJan 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, overall tax burden by state 2021WebApr 24, 2024 · The concept of quantum many-body scars has recently been put forward as a route to describe weak ergodicity breaking and violation of the eigenstate thermalization … rallye maths mhm cm1WebJan 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 … rallye maths mhm ce2 solutions