Partial factorization of wave functions for a quantum dissipative system
نویسندگان
چکیده
منابع مشابه
Partial Factorization of Wave Function for A Quantum Dissipation System
The microscopic approach quantum dissipation process presented by Yu and Sun [Phys. is developed to analyze the wave function structure of dynamic evolution of a typical dissipative system, a single mode boson soaked in a bath of many bosons. In this paper, the wave function of total system is explicitly obtained as a product of two components of the system and the bath in the coherent state re...
متن کاملWave Function Evolution of a Dissipative System
For a dissipative system with Ohmic friction, we obtain a simple and exact solution for the wave function of the system plus the bath. It is described by the direct product in two independent Hilbert space. One of them is described by an effective Hamiltonian, the other represents the effect of the bath, i.e., the Brownian motion, thus clarifying the structure of the wave function of the system...
متن کاملThe Observables of a Dissipative Quantum System
A time-dependent product is introduced between the observables of a dissipative quantum system, that accounts for the effects of dissipation on observables and commutators. In the t → ∞ limit this yields a contracted algebra. This product can be transported back by duality on the space of states. The general ideas are corroborated by a few explicit examples.
متن کاملFour-wave mixing excitations in a dissipative polariton quantum fluid
V. Kohnle,1 Y. Léger,1,2,* M. Wouters,3 M. Richard,4 M. T. Portella-Oberli,1 and B. Deveaud1 1Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland 2FOTON Laboratory, Université Européenne de Bretagne, CNRS-INSA-UR1, F-35708 Rennes, France 3TQC, University of Antwerp, Universiteislpein 1, 2610 Antwerpen, Belgium 4Nano-Physics and Semicond...
متن کاملAn Exact Solution for Quantum Tunneling in a Dissipative System
Applying a technique developed recently [1,2] for an harmonic oscillator coupled to a bath of harmonic oscillators, we present an exact solution for the tunneling problem in an Ohmic dissipative system with inverted harmonic potential. The result shows that while the dissipation tends to suppress the tunneling, the Brownian motion tends to enhance the tunneling. Whether the tunneling rate incre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 1998
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.57.3900