Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 차민철 | - |
dc.date.accessioned | 2019-06-13T08:07:21Z | - |
dc.date.available | 2019-06-13T08:07:21Z | - |
dc.date.issued | 2007-06 | - |
dc.identifier.citation | PHYSICAL REVIEW LETTERS, v. 98, No. 26, Article no. 266406 | en_US |
dc.identifier.issn | 0031-9007 | - |
dc.identifier.uri | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.98.266406 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/106575 | - |
dc.description.abstract | We study finite-temperature phase transitions in a two-dimensional boson Hubbard model with zero-point quantum fluctuations via Monte Carlo simulations of a quantum rotor model and construct the corresponding phase diagram. Compressibility shows a thermally activated gapped behavior in the insulating regime. Finite-size scaling of the superfluid stiffness clearly shows the nature of the Kosterlitz-Thouless transition. The transition temperature T-c confirms a scaling relation T-c proportional to rho(x)(0), with x=1.0. Some evidence of anomalous quantum behavior at low temperatures is presented. | en_US |
dc.description.sponsorship | M.-C. C. thanks Gerardo Ortiz for helpful discussions and the hospitality of Department of Physics, Indiana University, where parts of this work were carried out. This work was supported by Korea Research Fund Grant No. R05-2004-000-11004-0. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMERICAN PHYSICAL SOC | en_US |
dc.subject | XY-MODEL | en_US |
dc.subject | INSULATOR TRANSITION | en_US |
dc.subject | QUANTUM | en_US |
dc.subject | CRITICALITY | en_US |
dc.subject | SYSTEMS | en_US |
dc.title | Finite-temperature phase transitions in a two-dimensional boson Hubbard model | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1103/PhysRevLett.98.266406 | - |
dc.relation.journal | PHYSICAL REVIEW LETTERS | - |
dc.contributor.googleauthor | Cha, Min-Chul | - |
dc.contributor.googleauthor | Lee, Ji-Woo | - |
dc.relation.code | 2007207605 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E] | - |
dc.sector.department | DEPARTMENT OF PHOTONICS AND NANOELECTRONICS | - |
dc.identifier.pid | mccha | - |
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