Conveners
T1-4 Gravity and Cosmology (DTP) | Gravité et cosmologie (DPT)
- Svetlana Barkanova (Acadia University)
Black hole thermodynamics has motivated a search for deeper connection of entropy and gravity. We investigate this using a formulation of quantum field theory using non-unitary operators which give rise to entropy production. We try to obtain the physical consequences of this for quantum cosmology.
The canonical quantization of gravity leads to the Hamiltonian constraint: physical states of the theory are annihilated by the Hamiltonian. Combined with the Schrodinger equation, the Hamiltonian constraint dictates that the physical states of the theory do not evolve in time. Given that the physical states do not evolve, how do we explain the time evolution we see around us? The conditional...
As a black hole grows, its Hawking radiation is not thermal and, depending on the extent to which the Hawking spectrum is modulated, it can carry information about the infalling matter. Analogously, via the equivalence principle, the Unruh spectrum of non-uniformly accelerated trajectories is not thermal and, depending on the extent to which the Unruh radiation is modulated, it can carry...
