Melting of discrete vortices via quantum fluctuations
| dc.contributor.author | Li (Lee), Chaohong | |
| dc.contributor.author | Alexander, Tristram J | |
| dc.contributor.author | Kivshar, Yuri | |
| dc.date.accessioned | 2009-09-23T06:11:58Z | en_US |
| dc.date.accessioned | 2010-12-20T06:05:13Z | |
| dc.date.available | 2009-09-23T06:11:58Z | en_US |
| dc.date.available | 2010-12-20T06:05:13Z | |
| dc.date.issued | 2006-11-01 | en_US |
| dc.date.updated | 2015-12-08T03:03:47Z | |
| dc.description.abstract | We consider nonlinear boson states with a nontrivial phase structure in the three-site Bose-Hubbard ring, quantum discrete vortices (or q vortices), and study their “melting” under the action of quantum fluctuations. We calculate the spatial correlations in the ground states to show the superfluid-insulator crossover and analyze the fidelity between the exact and variational ground states to explore the validity of the classical analysis. We examine the phase coherence and the effect of quantum fluctuations on q vortices and reveal that the breakdown of these coherent structures through quantum fluctuations accompanies the superfluid-insulator crossover. | |
| dc.format | 4 pages | |
| dc.identifier.citation | Physical Review Letters 97.18 (2006): 180408/1-4 | |
| dc.identifier.issn | 0031-9007 | en_US |
| dc.identifier.issn | 1079-7114 | en_US |
| dc.identifier.uri | http://hdl.handle.net/10440/926 | en_US |
| dc.identifier.uri | http://digitalcollections.anu.edu.au/handle/10440/926 | |
| dc.publisher | American Physical Society | |
| dc.rights | http://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2006 The American Physical Society | |
| dc.source | Physical Review Letters | |
| dc.source.uri | http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000018180408000001&idtype=cvips&gifs=Yes | en_US |
| dc.source.uri | http://dx.doi.org/10.1103/PhysRevLett.97.180408 | en_US |
| dc.subject | Keywords: Correlation methods; Ground state; Insulating materials; Melting; Quantum theory; Supercritical fluids; Nonlinear boson states; Nontrivial phase structures; Phase coherence; Quantum discrete vortices; Quantum fluctuations; Vortex flow | |
| dc.title | Melting of discrete vortices via quantum fluctuations | |
| dc.type | Journal article | |
| local.bibliographicCitation.issue | 18 | |
| local.bibliographicCitation.startpage | 18408-1-4 | |
| local.contributor.affiliation | Li (Lee), Chaohong, Research School of Physical Sciences and Engineering, Non-Linear Physics Centre | en_US |
| local.contributor.affiliation | Alexander, Tristram J, Research School of Physical Sciences and Engineering, Non-Linear Physics Centre | en_US |
| local.contributor.affiliation | Kivshar, Yuri S, Research School of Physical Sciences and Engineering, Non-Linear Physics Centre | en_US |
| local.contributor.authoruid | u4192581 | en_US |
| local.contributor.authoruid | u9617111 | en_US |
| local.contributor.authoruid | u9307695 | en_US |
| local.identifier.absfor | 020201 | en_US |
| local.identifier.ariespublication | u3458573xPUB14 | en_US |
| local.identifier.citationvolume | 97 | |
| local.identifier.doi | 10.1103/PhysRevLett.97.180408 | |
| local.identifier.scopusID | 2-s2.0-33750568935 | |
| local.type.status | Published Version | en_US |
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