2013/02/28 by Simeon Sauer, Clemens Gneiting, Andreas Buchleitner · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physrevlett.111.030405
published as Phys. Rev. Lett. 111, 030405 (2013) · 6 pages. Corresponds to published version
arxiv created 2013/08/02 · arxiv updated 2013/08/05
We study to what extent the detrimental impact of dissipation on quantum properties can be compensated by suitable coherent dynamics. To this end, we develop a general method to determine the control Hamiltonian that optimally counteracts a given dissipation mechanism, in order to sustain the desired property, and apply it to two exemplary target properties: the coherence of a decaying two-level system, and the entanglement of two qubits in the presence of local dissipation.