String theory vacua
String theory - which predicts an astronomical number of spacetime bubbles (vacua) - accounts for the existence of at least some with conditions favorable to life - including a low entropy beginning. Note link to related proposal from Mersini-Houghton that removes the need for anthropic selection.
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The Arrow of Time  »The Arrow of Time 
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The physics of time »The physics of time
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The thermodynamic arrow »The thermodynamic arrow
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Why do we see an entropy gradient? »Why do we see an entropy gradient?
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Asymmetric boundary condition »Asymmetric boundary condition
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Past hypothesis »Past hypothesis
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Why low entropy in the past? »Why low entropy in the past?
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Anthropic selection »Anthropic selection
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Low entropy generators »Low entropy generators
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Source of low-entropy states »Source of low-entropy states
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String theory vacua
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Dynamic selection of string vacua »Dynamic selection of string vacua
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Link[1] The Anthropic Landscape of String Theory

En citant: Susskind, L. - Physics Dept, Stanford University
Cité par: Peter Baldwin 1:48 AM 12 August 2011 GMT
URL:
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ABSTRACT

In this lecture I make some educated guesses, about the landscape of string theory vacua. Based on the recent work of a number of authors, it seems plausible that the lanscape is unimaginably large and diverse. Whether we like it or not, this is the kind of behavior that gives credence to the Anthropic Principle. I discuss the theoretical and conceptual issues that arise in developing a cosmology based on the diversity of environments implicit in string theory.
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Immediately related elementsHow this works
-
The Arrow of Time  »The Arrow of Time 
▲
The physics of time »The physics of time
▲
The thermodynamic arrow »The thermodynamic arrow
▲
Why do we see an entropy gradient? »Why do we see an entropy gradient?
▲
Asymmetric boundary condition »Asymmetric boundary condition
▲
Past hypothesis »Past hypothesis
▲
Why low entropy in the past? »Why low entropy in the past?
▲
Anthropic selection »Anthropic selection
▲
Low entropy generators »Low entropy generators
▲
Source of low-entropy states »Source of low-entropy states
■
String theory vacua
◄
Dynamic selection of string vacua »Dynamic selection of string vacua