Quantum dissipative effects in moving mirrors: A functional approach

CESAR FOSCO; FERNANDO LOMBARDO; FRANCISCO D. MAZZITELLI

PHYSICAL REVIEW D - PARTICLE AND FILDS

APS

Lugar: New York; Año: 2007 vol. 76 p. 85007 - 85019

0556-2821

We use a functional approach to study various aspects of the quantum effective dynamics of moving, planar, dispersive mirrors, coupled to scalar or Dirac fields, in different numbers of dimensions. We first compute the Euclidean effective action, and use it to derive the imaginary part of the ?in-out? effective action. We also obtain, for the case of the real scalar field in 1+1 dimensions, the Schwinger-Keldysh effective action and a semiclassical Langevin equation that describes the motion of the mirror including noise and dissipative effects due to its coupling to the quantum fields.