Coherence Conservation of a Qubit Coupled to a Thermal Dissipating Environment

Rahimi, Robabeh; SaiToh, Akira; Nakahara, Mikio

Coherence Conservation of a Qubit Coupled to a Thermal Dissipating Environment

Authors

Rahimi, Robabeh

SaiToh, Akira

Nakahara, Mikio

Description

It is shown that quantum coherence is conserved in a principal system in the case that the system is coupled to a fast dissipating environment [arXiv:0709.0562]. The phenomenon is called the quantum wipe effect. Here, this effect is reviewed and the analytical proof for a model system consisting of a one-qubit system coupled to a fast dissipating environment is extended to an environment at a thermal equilibrium.
7 pages, 3 figures