Contrasting LQC and WDW Theory Using an Exactly Solvable Model
Contrasting LQC and WDW Theory Using an Exactly Solvable Model
Contrasting LQC and WDW Theory Using an Exactly Solvable Model
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Motivation<br />
Extensive <strong>an</strong>alytical <strong><strong>an</strong>d</strong> numerical methods in <strong>LQC</strong>: valuable insights<br />
on singularity resolution in symmetry reduced models.<br />
(Ashtekar, Pawlowski, PS (06-) + V<strong><strong>an</strong>d</strong>ersloot (07))<br />
Consider a semi-classical state in a large universe at low curvature<br />
<strong><strong>an</strong>d</strong> evolve backward towards big b<strong>an</strong>g. State follows classical<br />
trajectory till it reaches close to Pl<strong>an</strong>ck scale. Does not fall into<br />
singularity, but bounces in Pl<strong>an</strong>ck regime to a pre-big b<strong>an</strong>g br<strong>an</strong>ch.<br />
Underlying discrete qu<strong>an</strong>tum geometry leads to repulsive QG<br />
effects at Pl<strong>an</strong>ck scale. Classical Big B<strong>an</strong>g replaced by Qu<strong>an</strong>tum Big<br />
Bounce.<br />
Some open questions:<br />
IGC Inaugural Conference – p.2
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