Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 차민철 | - |
dc.date.accessioned | 2020-07-17T02:33:17Z | - |
dc.date.available | 2020-07-17T02:33:17Z | - |
dc.date.issued | 2004-08 | - |
dc.identifier.citation | PHYSICAL REVIEW B, v.70, Page. 052513-1-4 | en_US |
dc.identifier.uri | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.70.052513 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/151770 | - |
dc.description.abstract | We study the insulator-to-superfluid transition in a two-dimensional disordered boson Hubbard model at zero temperature for intermediate strength of disorder at commensurate density. Via Monte Carlo calculations of the correlation functions in the integer current representation of the model, we obtain the dynamical critical exponent z=1.5+/-0.1, supporting the multicritical behavior separating the strong and weak disorder regimes. Investigating the density profile, we suggest that the density fluctuations due to the particle-hole excitations drive the transition in the weak disorder regime. | en_US |
dc.description.sponsorship | This work was supported by Korea Research Foundation Grant No. (KRF-2002-041-C00110). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | AMERICAN PHYSICAL SOC | en_US |
dc.subject | Condensed Matter - Strongly Correlated Electrons | en_US |
dc.subject | Condensed Matter - Disordered Systems and Neural Networks | en_US |
dc.subject | Condensed Matter - Superconductivity | en_US |
dc.title | Separation of two regimes in a disordered boson Hubbard model | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1103/PhysRevB.70.052513 | - |
dc.relation.journal | PHYSICAL REVIEW B | - |
dc.contributor.googleauthor | Lee, Ji-Woo | - |
dc.contributor.googleauthor | Cha, Min-Chul | - |
dc.relation.code | 2009207601 | - |
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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