Density resolved wave packet spreading in disordered Gross-Pitaevskii lattices-Reference-Cited by-同舟云学术

Density resolved wave packet spreading in disordered Gross-Pitaevskii lattices

Published:2020-10-08 Issue:2 Volume:3 Page:
ISSN:2666-9366
Container-title:SciPost Physics Core
language:
Short-container-title:SciPost Phys. Core

Author:

Kati Yagmur¹²³,Yu Xiaoquan⁴⁵⁶,Flach Sergej¹²³

Affiliation:

1. Center for Theoretical Physics of Complex Systems

2. Korea University of Science and Technology

3. Massey University

4. China Academy of Engineering Physics

5. The Dodd-Walls Centre for Photonic and Quantum Technologies

6. University of Otago

Abstract

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.

Funder

Institute for Basic Science

National Safety Academic Fund

Publisher

Stichting SciPost

Link

https://scipost.org/10.21468/SciPostPhysCore.3.2.006/pdf

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