Flat band quantum scar

Author: gemz

August undefined, 2024

WebJan 27, 2024 · A topological flat band is another entity with promising prospects for the realization of the fractional quantum Hall effect 8,9,10,11. However, coexisting Dirac and flat bands in magnetic ... 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.

(PDF) Flat Band Quantum Scar - ResearchGate

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. WebMar 31, 2024 · These results are an important step in the understanding, both from the theoretical and the experimental points of view, of flat-band materials combining topology and interactions and leading to exotic quantum phenomena, such as magnetism, non-Fermi liquid behaviour and superconductivity. tower health philadelphia pa

Phys. Rev. B 98, 155134 (2024) - Quantum scarred eigenstates in a ...

WebMar 8, 2024 · Flat bands play an important role in diffraction-free photonics and attract fundamental interest in many-body physics. Here we report the engineering of flat-band localization of collective excited states of atoms in Creutz superradiance lattices with tunable synthetic gauge fields. Magnitudes and phases of the lattice hopping coefficients can be … 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 … power apps meeting template

Topology and correlations on the kagome lattice - Nature

[2105.00926] Multiple quantum scar states and emergent slow ...

WebAug 16, 2024 · Abstract. Quantum many-body scars (QMBSs) appear in a flat-band model with interactions on the sawtooth lattice. The flat-band model includes localized … 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 … tower health pottstown hospital billingWebA 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 … tower health physical therapy reading pa

"WebFlat Band Quantum Scar Yoshihito Kuno, Tomonari Mizoguchi, and Yasuhiro Hatsugai Department of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan (Dated: October 6, 2024) We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can be ... " - Flat band quantum scar

Flat band quantum scar

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 … 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 …

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WebWe show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can be … WebNov 20, 2024 · We provide an analytical understanding of these states and show that they survive in the presence of density-density interactions along the backbone of the system where, for sufficiently low but finite particle densities, they form many-body scar states.

WebQuantum scarring refers to a phenomenon where the eigenstates of a classically chaotic quantum system have enhanced probability density around the paths of unstable classical periodic orbits. The instability of the periodic orbit is a decisive point that differentiates quantum scars from the more trivial observation that the probability density is enhanced … 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.

WebDec 23, 2024 · Abstract. We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy … WebAug 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 ...

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 …

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. tower health plastic surgery \u0026 medspaWebMay 3, 2024 · Quantum many-body scars (QMBS) appear in a flat-band model with interactions on the sawtooth 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 … tower health pottstown hospital logoWebMay 28, 2024 · Flat bands are said to be dispersionless in the following sense: the group velocity for wave packets is d E ( k) / d k = 0 and therefore each wave packet preserves its form under time evolution. If it is initially localized it stays localized forever. This can be easily shown using the Fourier transform: power apps meeting schedulerWebPDF - We show that a quantum scar state, an atypical eigenstate breaking eigenstate thermalization hypothesis embedded in a many-body energy spectrum, can be … powerapps menu burgerWebMar 24, 2024 · Most acne scars require more than one treatment, but every session should lead to improvement of the skin and a return to a clearer appearance. Types of Acne … powerapps meetingtimesWebOur construction method of quantum scar has broad applications to various flat band systems. We show that a quantum scar state, an atypical eigenstate breaking … tower health pulmonary rehabilitationWebWe propose a general construction scheme for a quantum scar state in flat band systems. The quantum scar is an atypical eigenstate breaking eigenstate thermalization … power apps meeting capture v2