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Many-body flatband localization

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Title
Many-body flatband localization
Author(s)
Carlo Danieli; Alexei Andreanov; Sergej Flach
Subject
TRANSITION
Publication Date
2020-07
Journal
PHYSICAL REVIEW B, v.102, no.4, pp.041116
Publisher
AMER PHYSICAL SOC
Abstract
© 2020 author(s). Published by the American Physical Society. We generate translationally invariant systems exhibiting many-body localization from all-bands-flat single-particle lattice Hamiltonians dressed with suitable short-range many-body interactions. This phenomenon, dubbed many-body flatband localization, is based on symmetries of both single-particle and interaction terms in the Hamiltonian, and it holds for any interaction strength. We propose a generator of corresponding Hamiltonians which covers both interacting bosons and fermions for arbitrary lattice dimensions, and we provide explicit examples of such models in one and two lattice dimensions. We also explicitly construct an extensive set of local integrals of motion for this set of models. Our results can be further generalized to long-range interactions as well as to systems lacking translational invariance
URI
https://pr.ibs.re.kr/handle/8788114/7740
DOI
10.1103/PhysRevB.102.041116
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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