Open AccessClean Time-Dependent String Backgrounds from Bubble Baths
Author(s) -
Ofer Aharony,
Michal Fabinger,
Gary T. Horowitz,
Eva Silverstein
Publication year - 2002
Publication title -
journal of high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.998
H-Index - 261
eISSN - 1126-6708
pISSN - 1029-8479
DOI - 10.1088/1126-6708/2002/07/007
Subject(s) - physics , observable , string phenomenology , classical mechanics , string theory , worldsheet , non critical string theory , theoretical physics , general relativity , string (physics) , relationship between string theory and quantum field theory , string cosmology , spacetime , string field theory , quantum gravity , quantum mechanics , quantum
We consider the set of controlled time-dependent backgrounds of generalrelativity and string theory describing ``bubbles of nothing'', obtained viadouble analytic continuation of black hole solutions. We analyze their quantumstability, uncover some novel features of their dynamics, identify their causalstructure and observables, and compute their particle production spectrum. Wepresent a general relation between squeezed states, such as those arising incosmological particle creation, and nonlocal theories on the string worldsheet.The bubble backgrounds have various aspects in common with de Sitter space,Rindler space, and moving mirror systems, but constitute controlled solutionsof general relativity and string theory with no external forces. They provide auseful theoretical laboratory for studying issues of observables in systemswith cosmological horizons, particle creation, and time-dependent stringperturbation theory.Comment: 38 pages, harvmac big, 6 figure
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