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Article: Macroscopic Klein tunneling in spin-orbit-coupled Bose-Einstein condensates

TitleMacroscopic Klein tunneling in spin-orbit-coupled Bose-Einstein condensates
Authors
KeywordsBose-einstein condensates
Dirac equations
Experimental scheme
Gaussians
Macroscopic quantum coherence
Issue Date2012
PublisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.org
Citation
Physical Review A (Atomic, Molecular and Optical Physics), 2012, v. 85 n. 1, article no. 013628 How to Cite?
AbstractWe propose an experimental scheme to detect macroscopic Klein tunneling with spin-orbit-coupled Bose-Einstein condensates (BECs). We show that a nonlinear Dirac equation with tunable parameters can be realized with such BECs. Through numerical calculations, we demonstrate that macroscopic Klein tunneling can be clearly detected under realistic conditions. Macroscopic quantum coherence in such relativistic tunneling is clarified and a BEC with a negative energy is shown to be able to transmit transparently through a wide Gaussian potential barrier. © 2012 American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/145925
ISSN
2014 Impact Factor: 2.808
2015 SCImago Journal Rankings: 1.418
ISI Accession Number ID
Funding AgencyGrant Number
NSFC11125417
10974059
11104085
91121023
11004065
SKPBR2011CB922104
GRFHKU7058//11P
CRF of the RGC of Hong Kong
Funding Information:

This work was supported by the NSFC (Grants No. 11125417, No. 10974059, No. 11104085, No. 91121023, and No. 11004065), the SKPBR (Grant No. 2011CB922104), the GRF (HKU7058//11P) and CRF of the RGC of Hong Kong.

 

DC FieldValueLanguage
dc.contributor.authorZhang, Den_US
dc.contributor.authorXue, ZYen_US
dc.contributor.authorYan, Hen_US
dc.contributor.authorWang, ZDen_US
dc.contributor.authorZhu, SLen_US
dc.date.accessioned2012-03-27T09:02:09Z-
dc.date.available2012-03-27T09:02:09Z-
dc.date.issued2012en_US
dc.identifier.citationPhysical Review A (Atomic, Molecular and Optical Physics), 2012, v. 85 n. 1, article no. 013628en_US
dc.identifier.issn1050-2947-
dc.identifier.urihttp://hdl.handle.net/10722/145925-
dc.description.abstractWe propose an experimental scheme to detect macroscopic Klein tunneling with spin-orbit-coupled Bose-Einstein condensates (BECs). We show that a nonlinear Dirac equation with tunable parameters can be realized with such BECs. Through numerical calculations, we demonstrate that macroscopic Klein tunneling can be clearly detected under realistic conditions. Macroscopic quantum coherence in such relativistic tunneling is clarified and a BEC with a negative energy is shown to be able to transmit transparently through a wide Gaussian potential barrier. © 2012 American Physical Society.-
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://pra.aps.orgen_US
dc.relation.ispartofPhysical Review A (Atomic, Molecular and Optical Physics)en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong Licenseen_US
dc.subjectBose-einstein condensates-
dc.subjectDirac equations-
dc.subjectExperimental scheme-
dc.subjectGaussians-
dc.subjectMacroscopic quantum coherence-
dc.titleMacroscopic Klein tunneling in spin-orbit-coupled Bose-Einstein condensatesen_US
dc.typeArticleen_US
dc.identifier.emailZhang, D: zdanwei@hku.hken_US
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_US
dc.identifier.emailZhu, SL: †slzhu@scnu.edu.cn-
dc.identifier.authorityWang, Z=rp00802en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevA.85.013628-
dc.identifier.scopuseid_2-s2.0-84862909124-
dc.identifier.hkuros199049en_US
dc.identifier.volume85en_US
dc.identifier.issue1, article no. 013628-
dc.identifier.isiWOS:000299265600009-
dc.publisher.placeUnited States-

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