Abstract
Within the mini-superspace model, brane-like cosmology means performing the variation with respect to the embedding (Minkowski) time τ before fixing the cosmic (Einstein) time t. The departure from the Einstein limit is parametrized by the 'energy' conjugate to τ and characterized by a classically disconnected embryonic epoch. In contrast with canonical quantum gravity, the wavefunction of the Universe is (a) τ dependent and (b) vanishes at the big bang. Hartle-Hawking and Linde proposals dictate discrete 'energy' levels, whereas the Vilenkin proposal resembles α-disintegration.
Original language | English |
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Pages (from-to) | 1349-1356 |
Number of pages | 8 |
Journal | Classical and Quantum Gravity |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - 1 Apr 1999 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)