Fidelity and entanglement breaking properties of qutrit channels |
| |
Authors: | Agata Che¸cińska Krzysztof Wódkiewicz |
| |
Institution: | a Instytut Fizyki Teoretycznej, Uniwersytet Warszawski, Warszawa 00-681, Poland b Department of Physics and Astronomy, University of New Mexico, Albuquerque, NM 87131-1156, USA |
| |
Abstract: | We investigate fidelity and entanglement breaking properties of quantum qutrit channels. We focus on channel fidelity evaluated for pure initial states and entanglement fidelity for purified mixed states (or pure entangled qutrit states) and use negativity as an entanglement measure for qutrits. We analyze properties of qutrit gates and channels based on affine transformations of qutrit Bloch vectors. We employ channel complete positivity constraints into the discussion of fidelity and entanglement behaviour. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|