| Full text | |
| Author(s): |
Franca, V. V.
Total Authors: 1
|
| Document type: | Journal article |
| Source: | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS; v. 475, p. 82-87, JUN 1 2017. |
| Web of Science Citations: | 5 |
| Abstract | |
We investigate the properties of entanglement in one-dimensional fermionic lattices at the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluid regime. By analyzing occupation probabilities, which are concepts closely related to FFLO and entanglement, we obtain approximate analytical expressions for the spin-flip processes at the FFLO regime. We also apply density matrix renormalization group calculations to obtain the exact ground-state entanglement of the system in superfluid and non-superfluid regimes. Our results reveal a breaking pairs avalanche appearing precisely at the FFLO-normal phase transition. We find that entanglement is non-monotonic in superfluid regimes, feature that could be used as a signature of exotic superfluidity. (C) 2017 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 13/15982-3 - Density functional theory and applications to solids and cold atoms systems |
| Grantee: | Vivian Vanessa França Henn |
| Support Opportunities: | Research Grants - Young Investigators Grants |