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Adiabatic Mach-Zehnder interferometry on a quantized Bose-Josephson junction

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Li (Lee), Chaohong

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We propose a scheme to achieve Mach-Zehnder interferometry using a quantized Bose-Josephson junction with a negative charging energy. The quantum adiabatic evolution through a dynamical bifurcation is used to accomplish the beam splitting and recombination. The negative charging energy ensures the existence of a path-entangled state which enhances the phase measurement precision to the Heisenberg limit. A feasible detection procedure is also presented. The scheme should be realizable...[Show more]

dc.contributor.authorLi (Lee), Chaohong
dc.date.accessioned2009-08-25T05:57:30Z
dc.date.accessioned2010-12-20T06:05:44Z
dc.date.available2009-08-25T05:57:30Z
dc.date.available2010-12-20T06:05:44Z
dc.identifier.citationPhysical Review Letters 97.15 (2006): 150402/1-4
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/10440/764
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/764
dc.description.abstractWe propose a scheme to achieve Mach-Zehnder interferometry using a quantized Bose-Josephson junction with a negative charging energy. The quantum adiabatic evolution through a dynamical bifurcation is used to accomplish the beam splitting and recombination. The negative charging energy ensures the existence of a path-entangled state which enhances the phase measurement precision to the Heisenberg limit. A feasible detection procedure is also presented. The scheme should be realizable with current technology.
dc.format4 pages
dc.publisherAmerican Physical Society
dc.rightshttp://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.sourcePhysical Review Letters
dc.source.urihttp://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000097000015150402000001&idtype=cvips&gifs=Yes
dc.subjectKeywords: Bifurcation; Bose-Josephson junctions; Heisenberg limit; Equations of motion; Equations of state; Interferometry; Quantum theory; Josephson junction devices
dc.titleAdiabatic Mach-Zehnder interferometry on a quantized Bose-Josephson junction
dc.typeJournal article
local.identifier.citationvolume97
dc.date.issued2006-10-10
local.identifier.absfor020201
local.identifier.ariespublicationu3458573xPUB5
local.type.statusPublished Version
local.contributor.affiliationLi (Lee), Chaohong, Research School of Physical Sciences and Engineering, Non-Linear Physics Centre
local.bibliographicCitation.issue15
local.bibliographicCitation.startpage150402-1-4
local.identifier.doi10.1103/PhysRevLett.97.150402
dc.date.updated2015-12-08T02:47:50Z
local.identifier.scopusID2-s2.0-33749590903
CollectionsANU Research Publications

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