Work

Multi-State Quantum Dissipative Dynamics in Sub-Ohmic Environment: The Strong Coupling Regime

Year: 2015

Type: article

Abstract: We study the dissipative quantum dynamics and the asymptotic behavior of a particle in a bistable potential interacting with a sub-Ohmic broadband environment. The reduced dynamics, in the intermediate to strong dissipation regime, is obtained beyond the two-level system approximation by using a real-time path integral approach. We find a crossover dynamic regime with damped intra-well oscillations and incoherent tunneling and a completely incoherent regime at strong damping. Moreover, a nonmonotonic behavior of the left/right well population difference is found as a function of the damping strength.

Source: Entropy

DOI: 10.3390/e17042341

Authors: Luca Magazzù, Davide Valenti, Angelo Carollo, Bernardo Spagnolo

Institutions: National Interuniversity Consortium for the Physical Sciences of Matter, N. I. Lobachevsky State University of Nizhny Novgorod, University of Palermo, Istituto Nazionale di Fisica Nucleare, Sezione di Catania

Language: English

Topic: Quantum Mechanics and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,137

Funder: Ministero dell’Istruzione, dell’Università e della Ricerca