Title
Measurement theory for closed quantum systems
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Bristol :Iop publishing ltd ,
Subject
Physics
Source (journal)
MECHANICS
Journal of physics : conference series. - Bristol
Source (book)
7th International Workshop on Decoherence, Information, Complexity and, Entropy (DICE) - Spacetime - Matter - Quantum Mechanics, SEP 15-19, 2014, Castiglioncello, ITALY
Volume/pages
626(2015) , 7 p.
ISSN
1742-6588
1742-6596
1742-6588
Article Reference
012056
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We introduce the concept of a "classical observable" as an operator with vanishingly small quantum fluctuations on a set of density matrices. Their study provides a natural starting point to analyse the quantum measurement problem. In particular, it allows to identify Schrodinger cats and the associated projection operators intrinsically, without the need to invoke an environment. We discuss how our new approach relates to the open system analysis of quantum measurements and to thermalization studies in closed quantum systems.
E-info
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000357943100056&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000357943100056&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848
Full text (open access)
https://repository.uantwerpen.be/docman/irua/1edace/127165.pdf
Handle