Abstract
Normally, quantum fluctuations enhance the escape from metastable states in the presence of dissipation. Here we show that dissipation can enhance the stability of a quantum metastable system, consisting of a particle moving in a strongly asymmetric double well potential, interacting with a thermal bath. We find that the escape time from the metastable region has a nonmonotonic behavior versus the system-bath coupling and the temperature, producing a stabilizing effect.
Original language | English |
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Pages (from-to) | 235412-1-235412-7 |
Number of pages | 7 |
Journal | PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS |
Volume | 91 |
Publication status | Published - 2015 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics