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pro vyhledávání: '"GÓMEZ, CÉSAR"'
Autor:
Gomez, Cesar
We identify the algebra of gauge invariant observables in de Sitter as the subalgebra of the type $III_1$ factor $A_{dS}$, associated to de Sitter, defined as the centralizer of any integrable weight on $A_{dS}$. These algebras are for any integrable
Externí odkaz:
http://arxiv.org/abs/2407.20671
Autor:
Gomez, Cesar
We construct a model that describes the quantum black hole evaporation unitarily in a Hilbert space of infinite dimension. This construction generalizes Page's finite dimensional approach to infinite dimensions. The basic ingredient is the Murray-von
Externí odkaz:
http://arxiv.org/abs/2405.08435
Autor:
Gomez, Cesar
The Page curve describing the process of black hole evaporation is derived in terms of a family, parametrized in terms of the evaporation time, of finite type II_1 factors, associated, respectively, to the entanglement wedges of the black hole and th
Externí odkaz:
http://arxiv.org/abs/2403.09165
Autor:
Gomez, Cesar
Assuming the von Neumann algebra associated with a generic de Sitter observer is properly infinite (type III) we use Connes cocycle to identify the unique ( up to unitary equivalence) background independent dominant weight on an extended algebra form
Externí odkaz:
http://arxiv.org/abs/2311.01952
Autor:
Gomez, Cesar
We describe how general covariance for QFT defined on a space-time background with horizons leads to the need of adding an extra quantum degree of freedom. The definition of traces and entropies involves the use of a formally thermal state (weight) o
Externí odkaz:
http://arxiv.org/abs/2307.01841