Flat band quantum scar
WebJun 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. 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 …
Flat band quantum scar
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WebAug 5, 2024 · The total energy spread of the Landau levels of a singular flat band is determined by the quantum geometry of the relevant Bloch states, which is … WebMar 8, 2024 · Magic flat bands. (a),(b) Moiré bands along high-symmetry lines [the red dashed lines in Fig. 1] and DOS for Ω = 0.1 and Ω = 0.116, respectively. We set the bare Dirac cone energy as zero. The black dashed lines are bare Dirac bands folded back to Moiré BZ. (c) Flat band width W and gaps δ K, Γ with other higher bands at K and Γ points.
WebDec 23, 2024 · Abstract. We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy … 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 · Abstract and Figures We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis … WebMay 3, 2024 · Quantum many-body scars (QMBS) appear in a flat-band model with interactions on the saw-tooth lattice. The flat-band model includes a compact support localized eigenstates, called compact localized state (CLS). Some characteristic many-body states can be constructed from the CLSs at a low-filling on the flat-band. These many …
WebDec 23, 2024 · We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can …
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. dexter gordon/gotham cityWebNov 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. dexter gordon swingin affairWebJun 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 … church tax reporting requirementsWebWe propose a general construction scheme for a quantum scar state in flat band systems. The quantum scar is an atypical eigenstate breaking eigenstate thermalization … church teachers college loginWebA 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 … church teachers isimsWebCorrelations in Flat Bands: From the FQHE to Moiré ... Many aspects of this subject (eigenstate thermalization, many-body localization, quantum scars, Floquet theory, random circuits, etc.) have become active research areas thanks to new analytic insights and computational algorithms. We will initiate dialogue among various subfields and ... church teachers college email addressWebApr 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. church teacher college logo