2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-32088%22&qt=morelikethis&rows=5
2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-32088%22&qt=morelikethis&rows=5
2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T12:14:19-05:00 DEBUG: Deserialized SOLR response
Asymptotic exactness of c-number substitution in Bogolyubov's theory of superfluidity

Asymptotic exactness of c-number substitution in Bogolyubov's theory of superfluidity

The Bogolyubov model of liquid helium is considered. The validity of substituting a c-number for the k=0 mode operator â0 is established rigorously. The domain of stability of the Bogolyubov's Hamiltonian is found. We derive sufficient conditions which ensure the appearance of the Bose condensa...

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Bibliographic Details
Main Authors: Bogolyubov (jr), N.N., Sankovich, D.P.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2010
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/32088
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2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: Query fl=%2A&rows=40&rows=5&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-32088%22&qt=morelikethis
2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: => GET http://localhost:8983/solr/biblio/select?fl=%2A&rows=40&rows=5&wt=json&json.nl=arrarr&q=id%3A%22irk-123456789-32088%22&qt=morelikethis
2025-02-23T12:14:19-05:00 DEBUG: VuFindSearch\Backend\Solr\Connector: <= 200 OK
2025-02-23T12:14:19-05:00 DEBUG: Deserialized SOLR response

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