Quantum Coherence Conservation by Growth in Environmental Dissipation Rate
Quantum Physics
2007-10-24 v2
Abstract
Quantum coherence conservation is shown to be achieved by a very high rate of dissipation of an environmental system coupled with a principal system. This effect is not in the list of previously-known strategies of noise suppression, such as Zeno effect, dynamical decoupling, quantum error correction code, and decoherence free subspace. An analytical solution is found for a simplified model of a single qubit coupled with an environmental single qubit dissipating rapidly. We also show examples of coherence conservation in a spin-boson linear coupling model with a numerical evaluation.
Cite
@article{arxiv.0709.0562,
title = {Quantum Coherence Conservation by Growth in Environmental Dissipation Rate},
author = {Akira SaiToh and Robabeh Rahimi and Mikio Nakahara},
journal= {arXiv preprint arXiv:0709.0562},
year = {2007}
}
Comments
5 pages, 6 figures, elsart, original title: Quantum Wipe Effect for Coherence Conservation, v2: correction in the solution of (2), figures added