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Slides and audio for this talk by Brajesh Gupt were posted online today.
LQC bounce creates conditions for inflation. It's important to extend the quantum bounce model to anistropic cases, such as Bianchi I. Anisotropy can affect what one expects from the ensuing inflationary episode. Here are the questions posed and addressed in the talk.
==quote slide#3==
Kasner Transitions:
Here are the conclusions drawn in Brajesh's talk:
==quote slide#18==
http://relativity.phys.lsu.edu/ilqgs/
http://relativity.phys.lsu.edu/ilqgs/gupt032613.pdf
http://relativity.phys.lsu.edu/ilqgs/gupt032613.wav
LQC bounce creates conditions for inflation. It's important to extend the quantum bounce model to anistropic cases, such as Bianchi I. Anisotropy can affect what one expects from the ensuing inflationary episode. Here are the questions posed and addressed in the talk.
==quote slide#3==
Kasner Transitions:
- What is the relation between the geometrical nature of spacetime in pre and post bounce regime?
- Are there transitions from one type to other?
- Are some transitions favored over others? If yes, depending on what?
- Does anisotropy prevent inflation?
- How does LQC modify the dynamics and the amount of inflation?
- How is the amount of inflation affected as compared to the isotropic spacetime?
Here are the conclusions drawn in Brajesh's talk:
==quote slide#18==
- There are Kasner transitions across the bounce in Bianchi-I spacetime
- These transitions follow a pattern and depending on anisotropy and matter content some of them are favored- “selection rule”
- Inflation takes place irrespective of the initial anisotropic shear
- Anisotropy may enhance or reduce the amount of inflation depending on the initial conditions on the inflaton velocity
- Bianchi-I spacetime widens the window of the value of inflaton at the bounce, for a given number of e-foldings
http://relativity.phys.lsu.edu/ilqgs/
http://relativity.phys.lsu.edu/ilqgs/gupt032613.pdf
http://relativity.phys.lsu.edu/ilqgs/gupt032613.wav
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