Publication Date:
2016-06-01
Description:
Author(s): Xiaopeng Li, J. H. Pixley, Dong-Ling Deng, Sriram Ganeshan, and S. Das Sarma Quantum thermalization of isolated systems undergoing unitary time evolution is a fundamental problem in quantum statistical mechanics. Its study has been revived recently in the context of many-body Anderson localization. Previous works have focused on localization of many-body systems with all the single-particle states being localized. As a significant step forward, this work studies localization aspects of noninteracting many-particle systems in the presence of a single-particle mobility edge. By systemically investigating entanglement entropy scaling and nonthermal fluctuations in various lattice models, the authors establish a nonergodic extended phase as a generic intermediate phase (between purely ergodic extended and nonergodic localized phases) for the many-body localization transition of noninteracting fermions. This work also sheds light on the interacting transition scenario as well. [Phys. Rev. B 93, 184204] Published Tue May 31, 2016
Keywords:
Inhomogeneous, disordered, and partially ordered systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
Permalink
