Stabilizing entanglement in the presence of local decay processes
Quantum Physics
2014-03-27 v2
Abstract
We investigate to what extent a suitably chosen system Hamiltonian can counteract local dissipative processes and preserve entanglement in the stationary state. The results determine prospects and limitations of dissipative state preparation schemes based on natural dissipative processes -- in contrast to engineered, typically non-local dissipative schemes. As an exemplary case, we determine the stationary state of two spontaneously decaying two-level systems with optimal entanglement properties. The corresponding system Hamiltonian is derived, and its possible experimental implementation is discussed in detail. Finally, we discuss generalizations for many qubits.
Keywords
Cite
@article{arxiv.1310.6537,
title = {Stabilizing entanglement in the presence of local decay processes},
author = {Simeon Sauer and Clemens Gneiting and Andreas Buchleitner},
journal= {arXiv preprint arXiv:1310.6537},
year = {2014}
}
Comments
12 pages. Corresponds to published version