Yu Pan

Optimal decoherence control in non-Markovian open dissipative quantum systems

We investigate the optimal control problem for a non-Markovian open, dissipative quantum system. Optimal control using the Pontryagin maximum principle is specifically derived. The influences of ohmic reservoir with Lorentz-Drude regularization are numerically studied in a two-level system under the following three conditions:

Non-Markovian entanglement dynamics between two coupled qubits in the same environment

{ensuremath{omega}}_{0}⪡{ensuremath{omega}}_{c}

The entanglement dynamics of the bipartite quantum system: toward entanglement sudden death

,

Non-Markovian entanglement dynamics in coupled superconducting qubit systems

{ensuremath{omega}}_{0}ensuremath{approx}{ensuremath{omega}}_{c}

DYNAMICAL CONTROL OF QUANTUM CORRELATIONS IN A COMMON ENVIRONMENT

, or

Controlled population transfer for quantum computing in non-Markovian noise environment

{ensuremath{omega}}_{0}⪢{ensuremath{omega}}_{c}

Optimal control of quantum discord in a common environment

, where

Dynamical decoupling in common environment

{ensuremath{omega}}_{0}

Decoherence control for high-temperature reservoirs

is the characteristic frequency of the quantum system of interest, and

Available control in dynamical decoupled quantum systems

{ensuremath{omega}}_{c}