Non-Perturbative Renormalization Group Analysis of the Ohmic Quantum Dissipation
arXiv:quant-ph/0204078 · doi:10.1016/S0375-9601(03)00902-2
Abstract
We analyze quantum tunneling with the Ohmic dissipation by the non-perturbative renormalization group method. We calculate the localization susceptibility to evaluate the critical dissipation for the quantum-classical transition, and find considerably larger critical dissipation compared to the previous semi-classical arguments.
Latex 9 pages, 3 eps figures, final version