Dáfni F. Z. Marchioro, Daniel L. Nedel Universidade Federal da Integração Latino-Americana Avenida Tancredo Neves 6731, Foz do Iguaçu, Brasil Abstract In this letter, the open string is quantized in… Click to show full abstract
Dáfni F. Z. Marchioro, Daniel L. Nedel Universidade Federal da Integração Latino-Americana Avenida Tancredo Neves 6731, Foz do Iguaçu, Brasil Abstract In this letter, the open string is quantized in a time dependent black hole background. The geometry is defined through an adiabatic approximation of the Vaydia metric. The worldsheet two-point function is derived and it is shown to have the same type of singularity as the flat space one. However, the equal times two-point function depends on the particular Cauchy surface where the worldsheet fields are defined. Finite temperature effects are incorporated through the Liouville-von Neumann approach to non equilibrium thermodynamics.
               
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