Flat band quantum scar
WebJun 22, 2024 · This paper proposes different mechanisms to realize robust quantum scars in two-dimensional arrays of Rydberg atoms. The results show that a small perturbation to the system can lead to a significant suppression of the thermalization rate of a small set of states Skip to Main Content Journals Physical Review Letters Physical Review X PRX … WebJul 26, 2024 · In mean field theory, we show that a nonisolated flat band can actually be beneficial for superconductivity. This is a promising result in the search for high-temperature superconductivity as the material does not need to have flat bands that are isolated from other bands by the thermal energy.
Flat band quantum scar
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WebThe quantum scar is an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum. In our construction, we make use of orthogonal compact localized states that are characteristics of certain flat-band models. We concretely discuss our construction scheme, taking a saw-tooth flat lattice system as ... WebOct 5, 2024 · Abstract and Figures We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis …
WebNov 4, 2015 · Flat band occurs in a variety of condensed-matter systems, ranging from the Landau levels of an electron gas 6, edge states of graphene 7 to unconventional superconductors 8. WebOur construction method of quantum scar has broad applications to various flat band systems. We show that a quantum scar state, an atypical eigenstate breaking …
WebMar 21, 2024 · A critical result in superconductivity is that flat bands, though dispersionless, can still host nonzero superfluid weight due to quantum geometry. We show that the derivation of the mean field superfluid weight in previous literature is incomplete, which can lead to severe quantitative and even qualitative errors. We derive the complete equations … WebWe show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can be constructed in flat band systems. The key idea of our construction is to make use of orthogonal compact localized states. We concretely discuss our construction scheme, taking a saw-tooth flat …
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. 7263 Accesses. 119 Citations. 11 ...
WebOct 5, 2024 · We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can … nkhan3 lifespan.orgWebAug 20, 2024 · In this work, we revisit the η-pairing states in Hubbard models and explore their connections to quantum many-body scars to discover a universal scars mechanism. η-pairing occurs due to an algebraic structure known as a spectrum generating algebra (SGA), giving rise to equally spaced towers of eigenstates in the spectrum. nk gothenburgWebJun 21, 2024 · The notion of an electronic flat band refers to a collectively degenerate set of quantum mechanical eigenstates in periodic solids. The vanishing kinetic energy of flat bands relative to the electron-electron interaction is expected to result in a variety of many-body quantum phases of matter. nki file in windowWebPDF - We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can be … nkh metabolic disorderWebApr 8, 2024 · A flat band indicates a type of band structures with constant energy independent of the crystal momentum. The key feature of the flat band is that the charge carriers in it have a zero group velocity and an infinite effective mass. nkhhc definitionWebA keloid is a condition that usually occurs after a skin-related injury. A layer of scar forms near the healed injury, producing a scar. It is common to get keloids from traumatic … nkh photographyWebAug 5, 2024 · (2024, August 5). Manifestation of quantum distance in flat band materials: Landau level spectrum of singular flat bands enables to measure the distance between quantum states. ScienceDaily ... nkiri hollywood movie download