Mondragon-Shem, I;
Pal, A;
Hughes, TL;
Laumann, CR;
(2015)
Many-body mobility edge due to symmetry-constrained dynamics and strong interactions.
Physical Review B
, 92
(6)
, Article 064203. 10.1103/physrevb.92.064203.
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Abstract
We provide numerical evidence combined with an analytical understanding of the many-body mobility edge for the strongly anisotropic spin-1/2 XXZ model in a random magnetic field. The system dynamics can be understood in terms of symmetry-constrained excitations about parent states with ferromagnetic and antiferromagnetic short range order. These two regimes yield vastly different dynamics producing an observable, tunable many-body mobility edge. We compute a set of diagnostic quantities that verify the presence of the mobility edge and discuss how weakly correlated disorder can tune the mobility edge further.
| Type: | Article |
|---|---|
| Title: | Many-body mobility edge due to symmetry-constrained dynamics and strong interactions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/physrevb.92.064203 |
| Publisher version: | http://doi.org/10.1103/physrevb.92.064203 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10084500 |
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