Linked Life Data

11486083

Source:http://linkedlifedata.com/resource/pubmed/id/11486083

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5531
pubmed:dateCreated
2001-8-3
pubmed:abstractText
We report on the direct observation of an oscillating atomic current in a one-dimensional array of Josephson junctions realized with an atomic Bose-Einstein condensate. The array is created by a laser standing wave, with the condensates trapped in the valleys of the periodic potential and weakly coupled by the interwell barriers. The coherence of multiple tunneling between adjacent wells is continuously probed by atomic interference. The square of the small-amplitude oscillation frequency is proportional to the microscopic tunneling rate of each condensate through the barriers and provides a direct measurement of the Josephson critical current as a function of the intermediate barrier heights. Our superfluid array may allow investigation of phenomena so far inaccessible to superconducting Josephson junctions and lays a bridge between the condensate dynamics and the physics of discrete nonlinear media.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Aug
pubmed:issn
0036-8075
pubmed:author
pubmed:issnType
Print
pubmed:day
3
pubmed:volume
293
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
843-6
pubmed:dateRevised
2007-3-19
pubmed:year
2001
pubmed:articleTitle
Josephson junction arrays with Bose-Einstein condensates.
pubmed:affiliation
European Laboratory for Non-Linear Spectroscopy (LENS) and, Istituto Nationale per la Fisica della Materia (INFM), L.go E. Fermi 2, I-50125 Firenze, Italy.
pubmed:publicationType
Journal Article