Process optimized quantum cloners via semidefinite programming

Autor: Koniorczyk, Mátyás, Dani, Lívia, Bužek, Vladimír
Rok vydání: 2013
Předmět:
Druh dokumentu: Working Paper
Popis: We apply semidefinite programming for designing 1 to 2 symmetric qubit quantum cloners. These are optimized for the average fidelity of their joint output state with respect to a product of multiple originals. We design 1 to 2 quantum bit cloners using the numerical method for finding completely positive maps approximating a nonphysical one optimally. We discuss the properties of the so-designed cloners.
Comment: 10 pages, 3 figures
Databáze: arXiv