Decoherence in Pre-Big-Bang Cosmology
Mod.Phys.Lett. A12 (1997) 597-612 We analyze the quantum cosmology of the simplest pre--big--bang model without dilaton potential. In addition to the minisuperspace variables we include inhomogeneous dilaton fluctuations and determine their wave function on a semiclassical background. This wave func...
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| creator | Lukas, Andre' Poppe, Rudolf |
| description | Mod.Phys.Lett. A12 (1997) 597-612 We analyze the quantum cosmology of the simplest pre--big--bang model without
dilaton potential. In addition to the minisuperspace variables we include
inhomogeneous dilaton fluctuations and determine their wave function on a
semiclassical background. This wave function is used to calculate the reduced
density matrix and to find criteria for the loss of decoherence. It is shown
that coherence between different backgrounds can always be achieved by a
specific choice of vacua though generically decoherence can be expected. In
particular, we discuss the implications of these results on the ``exit
problem'' of pre--big--bang cosmology. |
| doi_str_mv | 10.48550/arxiv.gr-qc/9603047 |
| format | Article |
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dilaton potential. In addition to the minisuperspace variables we include
inhomogeneous dilaton fluctuations and determine their wave function on a
semiclassical background. This wave function is used to calculate the reduced
density matrix and to find criteria for the loss of decoherence. It is shown
that coherence between different backgrounds can always be achieved by a
specific choice of vacua though generically decoherence can be expected. In
particular, we discuss the implications of these results on the ``exit
problem'' of pre--big--bang cosmology.</description><identifier>DOI: 10.48550/arxiv.gr-qc/9603047</identifier><language>eng</language><subject>Physics - General Relativity and Quantum Cosmology ; Physics - High Energy Physics - Theory</subject><creationdate>1996-03</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>228,230,780,885</link.rule.ids><linktorsrc>$$Uhttps://arxiv.org/abs/gr-qc/9603047$$EView_record_in_Cornell_University$$FView_record_in_$$GCornell_University$$Hfree_for_read</linktorsrc><backlink>$$Uhttps://doi.org/10.1142/S0217732397000625$$DView published paper (Access to full text may be restricted)$$Hfree_for_read</backlink><backlink>$$Uhttps://doi.org/10.48550/arXiv.gr-qc/9603047$$DView paper in arXiv$$Hfree_for_read</backlink></links><search><creatorcontrib>Lukas, Andre'</creatorcontrib><creatorcontrib>Poppe, Rudolf</creatorcontrib><title>Decoherence in Pre-Big-Bang Cosmology</title><description>Mod.Phys.Lett. A12 (1997) 597-612 We analyze the quantum cosmology of the simplest pre--big--bang model without
dilaton potential. In addition to the minisuperspace variables we include
inhomogeneous dilaton fluctuations and determine their wave function on a
semiclassical background. This wave function is used to calculate the reduced
density matrix and to find criteria for the loss of decoherence. It is shown
that coherence between different backgrounds can always be achieved by a
specific choice of vacua though generically decoherence can be expected. In
particular, we discuss the implications of these results on the ``exit
problem'' of pre--big--bang cosmology.</description><subject>Physics - General Relativity and Quantum Cosmology</subject><subject>Physics - High Energy Physics - Theory</subject><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>GOX</sourceid><recordid>eNpjYJAxNNAzsTA1NdBPLKrILNNLL9ItTNa3NDMwNjAx52RQdUlNzs9ILUrNS05VyMxTCChK1XXKTNd1SsxLV3DOL87Nz8lPr-RhYE1LzClO5YXS3AxKbq4hzh66YDPjC4oycxOLKuPTi-ILk-OhZhsTpQgA16ow3w</recordid><startdate>19960325</startdate><enddate>19960325</enddate><creator>Lukas, Andre'</creator><creator>Poppe, Rudolf</creator><scope>GOX</scope></search><sort><creationdate>19960325</creationdate><title>Decoherence in Pre-Big-Bang Cosmology</title><author>Lukas, Andre' ; Poppe, Rudolf</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-arxiv_primary_gr_qc_96030473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Physics - General Relativity and Quantum Cosmology</topic><topic>Physics - High Energy Physics - Theory</topic><toplevel>online_resources</toplevel><creatorcontrib>Lukas, Andre'</creatorcontrib><creatorcontrib>Poppe, Rudolf</creatorcontrib><collection>arXiv.org</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lukas, Andre'</au><au>Poppe, Rudolf</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decoherence in Pre-Big-Bang Cosmology</atitle><date>1996-03-25</date><risdate>1996</risdate><abstract>Mod.Phys.Lett. A12 (1997) 597-612 We analyze the quantum cosmology of the simplest pre--big--bang model without
dilaton potential. In addition to the minisuperspace variables we include
inhomogeneous dilaton fluctuations and determine their wave function on a
semiclassical background. This wave function is used to calculate the reduced
density matrix and to find criteria for the loss of decoherence. It is shown
that coherence between different backgrounds can always be achieved by a
specific choice of vacua though generically decoherence can be expected. In
particular, we discuss the implications of these results on the ``exit
problem'' of pre--big--bang cosmology.</abstract><doi>10.48550/arxiv.gr-qc/9603047</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Physics - General Relativity and Quantum Cosmology Physics - High Energy Physics - Theory |
| title | Decoherence in Pre-Big-Bang Cosmology |
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