Generalized Unruh effect: A potential resolution to the black hole information paradox

Abstract

We generalize the vacuum-Unruh effect to arbitrary excited states in the Fock space and find that the Unruh mode at the horizon induces coherent excitation on the canonical background ensemble measured by an accelerated observer. When there is only one type of Unruh mode in the system, for example, the ones outgoing from a black hole horizon, the mapping from an arbitrary density matrix on the maximal foliation to a vector space spanned by the pseudo-thermal density matrix on the partitioned spacetime wedge is one-to-one. Hence we propose that the information of the particles that is inside a collapsing shell, thus inside the asymptotic black hole horizon is at least partially retrievable by measuring the deviation of the Hawking radiation from the black body radiation spectrum. This work shows that the long-standing black hole information confusion might come from overlooking the possibility that the information could be preserved much better than we have expected in a seemingly non-unitary process when the partitions of the system are strongly entangled.

Alena Tensor and Its Possible Applications in Unification Theories

“…Current research approaches to quantum problems in a strong gravitational field each time require the construction of an appropriate model in which the obtained results can be interpreted, either through careful selection of the observer [58], or making direct use of the principle of equivalence [59], or own, specific approach [60]. It also needed consideration of the specific quantum phenomena occurring in the vicinity of very massive objects, such as the Unruh effect [61] or Hawking radiation [62]. Thanks to the dualistic approach, such research can now be conducted in flat spacetime with fields and then the results can be analyzed in curved spacetime.…”

Alena Tensor and Its Possible Applications in Unification Theories

“…Current research approaches to quantum problems in a strong gravitational field each time require the construction of an appropriate model in which the obtained results can be interpreted, either through careful selection of the observer [65], or making direct use of the principle of equivalence [66], or own, specific approach [67]. It also needed consideration of the specific quantum phenomena occurring in the vicinity of very massive objects, such as the Unruh effect [68] or Hawking radiation [69]. Thanks to the dualistic approach, such research can now be conducted in flat spacetime with fields and then the results can be easily analyzed in curved spacetime.…”

Alena Tensor and Its Possible Applications in Unification Theories

“…Current research approaches to quantum problems in a strong gravitational field each time require the construction of an appropriate model in which the obtained results can be interpreted, either through careful selection of the observer [54], or making direct use of the principle of equivalence [55], or own, specific approach [56]. It also needed consideration of the specific quantum phenomena occurring in the vicinity of very massive objects, such as the Unruh effect [57] or Hawking radiation [58]. Thanks to the dualistic approach, such research can now be conducted in flat spacetime with fields and then the results can be easily analyzed in curved spacetime.…”