Details

Autor(en) / Beteiligte

• Morzhin, O. V.
• Pechen’, A. N.

Titel

Maximization of the Uhlmann–Jozsa Fidelity for an Open Two-Level Quantum System with Coherent and Incoherent Controls

Ist Teil von

• Physics of particles and nuclei, 2020-07, Vol.51 (4), p.464-469

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In the paper, the problem of maximization of the Uhlmann–Jozsa fidelity, which shows the degree of coincidence between the given target density matrix and the final density matrix of a two-level open quantum system exposed to a simultaneous action of coherent and incoherent controls, is considered. For some initial and target density matrices, it was shown analytically that the zero coherent and incoherent controls are singular controls that satisfy the second order necessary conditions for the optimality. In the general case, a numerical method with reduction to finite-dimensional optimization is considered. Numerical results were obtained and presented.