Decoherence, wave function collapses and non-ordinary statistical mechanics Metadata
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- Main Title Decoherence, wave function collapses and non-ordinary statistical mechanics
Author: Bologna, MauroCreator Type: PersonalCreator Info: University of North Texas
Author: Grigolini, PaoloCreator Type: PersonalCreator Info: University of North Texas; Università di Pisa; Istituto di Biofisica
Author: Pala, Marco G.Creator Type: PersonalCreator Info: Università di Pisa
Author: Palatella, LuigiCreator Type: PersonalCreator Info: Università di Pisa
Name: Elsevier Science Ltd.Place of Publication: [New York, New York]
- Creation: 2003-08
- Physical Description: 4 p.
- Content Description: Article discussing decoherence, wave function collapses, and non-ordinary statistical mechanics.
- Keyword: decoherence theory
- Keyword: density matrix
- Keyword: statistical mechanics
- Journal: Chaos, Solitons and Fractals, 2003, New York: Elsevier Science Ltd., pp. 601-608
- Publication Title: Chaos, Solitons and Fractals
- Volume: 17
- Issue: 4
- Page Start: 601
- Page End: 608
- Peer Reviewed: True
Name: UNT Scholarly WorksCode: UNTSW
Name: UNT College of Arts and SciencesCode: UNTCAS
- Rights Access: public
- Archival Resource Key: ark:/67531/metadc174684
- Academic Department: Physics
- Academic Department: Center for Nonlinear Science
- Display Note: This is the preprint version of the article. Reprinted with permission from Elsevier Science Ltd., all rights reserved. The final definitive version is available here: http://dx.doi.org/10.1016/S0960-0779(02)00491-5
- Display Note: Abstract: We consider a toy model of pointer interacting with a 1/2-spin system, whose σₓ variable is measured by the environment, according to the prescription of decoherence theory. If the environment measuring the variable σₓ yields ordinary statistical mechanics, the pointer sensitive to the 1/2-spin system undergoes the same, exponential, relaxation regardless of whether real collapses or an entanglement with the environment, mimicking the effect of real collapses, occur. In the case of non-ordinary statistical mechanics the occurrence of real collapses make the pointer still relax exponentially in time, while the equivalent picture in terms of reduced density matrix generates an inverse power law relaxation.