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Yagmur, Kati
복잡계 이론물리 연구단
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Density resolved wave packet spreading in disordered Gross-Pitaevskii lattices

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Title
Density resolved wave packet spreading in disordered Gross-Pitaevskii lattices
Author(s)
Yagmur Kati; Xiaoquan Yu; Sergej Flach
Publication Date
2020-10
Journal
SCIPOST PHYSICS CORE, v.3, no.2, pp.006
Publisher
SCIPOST FOUNDATION
Abstract
© Y. Kati et al. We perform novel energy and norm density resolved wave packet spreading studies in the disordered Gross-Pitaevskii (GP) lattice to confine energy density fluctuations. We map the locations of GP regimes of weak and strong chaos subdiffusive spreading in the 2D density control parameter space and observe strong chaos spreading over several decades. We obtain a renormalization of the ground state due to disorder, which allows for a new disorder-induced phase of disconnected insulating puddles of matter due to Lifshits tails. Inside this Lifshits phase, the wave packet spreading is substantially slowed down.
URI
https://pr.ibs.re.kr/handle/8788114/8927
DOI
10.21468/SciPostPhysCore.3.2.006
ISSN
2666-9366
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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