Электронный каталог

Статья

Prokhorov, G.Yu.
Enganglement Viscoisty: From Unitaritry to Irreversibility in Accelerated Frames / G.Yu.Prokhorov. – Text : electronic // Physical Review D. – 2026. – Vol. 114, No. 4. – P. L041703. – URL: https://doi.org/10.1103/2f7b-l381. – Bibliogr.: 48.

We demonstrate that the unitarity of quantum field theory, through the positivity of spectral densities, underlies thermodynamic irreversibility for a subsystem separated by a horizon, in direct analogy with the irreversibility of renormalization-group flows. To this end, we explicitly find the shear and bulk viscosities—the entanglement viscosities—for thermal radiation in Rindler space using the universal spectral representation. A direct consequence of the obtained general formulas is the relationship between the acceleration-induced shear viscosity in flat space and the conformal quantum anomaly in curved space, pointing to a possible novel probe of the conformal anomaly in systems with extreme acceleration. Moreover, for conformal field theories, we explicitly show that globally entanglement viscosity saturates the Kovtun-Son-Starinets bound.



ОИЯИ = ОИЯИ (JINR)2026