We consider the full S-matrix in scattering giving rise to analogous Hawking radiation dispersive media. show general structure of weak dispersion approximation and discuss some unnoticed features primary process, with a possible generalization phenomenology effect. In particular, we stress that particle its antiparticle partner priori could also be produced different rates. provide parameteriz...

In the frame of the scalar theory λφ 4 , we explore the occurrence of thermal renormalons, i. e. temperature dependent singularities in the Borel plane. Using Thermofield Dynamics, we found in fact a series of singularities of this kind, which are located to the right of the well known zero temperature pole, being therefore of a subleading character in the ambiguity of the Borel sum.

The main objective of this paper was to obtain the twodimensional order and disorder thermal operators using the Thermofield Bosonization formalism. We show that the general property of the two-dimensional world according with the bosonized Fermi field at zero temperature can be constructed as a product of an order and a disorder variables which satisfy a dual field algebra holds at finite temp...

Abstract We study the entanglement dynamics of thermofield double (TFD) states in integrable spin chains and quantum field theories. show that, for a natural choice Hamiltonian eigenbasis, TFD evolution may be interpreted as quench from an initial state which is low-entangled real-space representation displays simple quasiparticle structure. Based on semiclassical picture analogous to one devel...