Ground-State Fidelity and Bipartite Entanglement in the Bose-Hubbard Model
| dc.creator | Buonsante, Pierfrancesco | |
| dc.creator | Vezzani, Alessandro | |
| dc.date | 2006-12-22 | |
| dc.date | 2007-03-17 | |
| dc.date.accessioned | 2026-07-07T09:40:42Z | |
| dc.date.available | 2026-07-07T09:40:42Z | |
| dc.description | We analyze the quantum phase transition in the Bose-Hubbard model borrowing two tools from quantum-information theory, i.e. the ground-state fidelity and entanglement measures. We consider systems at unitary filling comprising up to 50 sites and show for the first time that a finite-size scaling analysis of these quantities provides excellent estimates for the quantum critical point.We conclude that fidelity is particularly suited for revealing a quantum phase transition and pinning down the critical point thereof, while the success of entanglement measures depends on the mechanisms governing the transition. | |
| dc.description | 7 pages, 5 figures (endfloats used due to problems with figures and latex. Sorry about that); final version, similar to the published one | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0612590 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0612590 | |
| dc.identifier | Physical Review Letters 98, 110601 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.110601 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/161570 | |
| dc.subject | Other Condensed Matter | |
| dc.subject | Quantum Physics | |
| dc.title | Ground-State Fidelity and Bipartite Entanglement in the Bose-Hubbard Model | |
| dc.type | text |