Boundary Interaction Changing Operators and Dynamical Correlations in Quantum Impurity Problems

@article{Lesage1998BoundaryIC,
  title={Boundary Interaction Changing Operators and Dynamical Correlations in Quantum Impurity Problems},
  author={F. Lesage and H. Saleur},
  journal={Physical Review Letters},
  year={1998},
  volume={80},
  pages={4370-4373}
}
  • F. Lesage, H. Saleur
  • Published 1998
  • Physics
  • Physical Review Letters
  • Recent developments have made possible the computation of equilibrium dynamical correlators in quantum impurity problems. In many situations however, one is rather interested in correlators subject to a non equilibrium initial preparation; this is the case for instance for the occupation probability $P(t)$ in the double well problem of dissipative quantum mechanics (DQM). We show in this paper how to handle this situation in the framework of integrable quantum field theories by introducing… CONTINUE READING
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