arXiv subjects

Andrei Pomeransky

Publications and source records attributed to Andrei Pomeransky.

2 recordsLinked to original sources

arXiv2005

Complete integrability of higher-dimensional Einstein equations with additional symmetry, and rotating black holes

A new derivation of the five-dimensional Myers-Perry black-hole metric as a 2-soliton solution on a non-flat background is presented. It is intended to be an illustration of how the well-known Belinski-Zakharov method can be applied to find solutions of the Einstein equations in D-dimensional space-time with D-2 commuting Killing vectors using the complete integrability of this system. The method appears also to be promising for the analysis of the uniqueness questions for higher-dimensional black holes.

hep-th↗

arXiv2003

Strong superadditivity of the entanglement of formation follows from its additivity

The additivity of both the entanglement of formation and the classical channel capacity is known to be a consequence of the strong superadditivity conjecture. We show that, conversely, the strong superadditivity conjecture follows from the additivity of the entanglement of formation; this means that the two conjectures are equivalent and that the additivity of the classical channel capacity is a consequence of them.

quant-ph↗