Articulo
Anisotropic Unruh temperatures
Autor
Arias, Raúl Eduardo
Casini, Horacio Germán
Huerta, Marina
Pontello, Diego Esteban
Institución
Resumen
The relative entropy between very high-energy localized excitations and the vacuum, where both states are reduced to a spatial region, gives place to a precise definition of a local temperature produced by vacuum entanglement across the boundary. This generalizes the Unruh temperature of the Rindler wedge to arbitrary regions. The local temperatures can be read off from the short distance leading have a universal geometric expression that follows by solving a particular eikonal type equation in Euclidean space. This equation generalizes to any dimension the holomorphic property that holds in two dimensions. For regions of arbitrary shapes the local temperatures at a point are direction dependent. We compute their explicit expression for the geometry of a wall or strip. Facultad de Ciencias Exactas Instituto de Física La Plata