Delocalization of Weakly Interacting Bosons in a 1D Quasiperiodic Potential
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| Publication date | 25-07-2014 |
| Journal | Physical Review Letters |
| Article number | 045304 |
| Volume | Issue number | 113 | 4 |
| Number of pages | 5 |
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| Abstract | We consider weakly interacting bosons in a 1D quasiperiodic potential (Aubry-Azbel-Harper model) in the regime where all single-particle states are localized. We show that the interparticle interaction may lead to the many-body delocalization and we obtain the finite-temperature phase diagram. Counterintuitively, in a wide range of parameters the delocalization requires stronger coupling as the temperature increases. This means that the system of bosons can undergo a transition from a fluid to insulator (glass) state under heating. |
| Document type | Article |
| Note | © 2014 American Physical Society. - With supplemental material |
| Language | English |
| Published at | https://doi.org/10.1103/PhysRevLett.113.045304 |
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