We study the evolution of entanglement in quantum gates in terms of Choi-Jamiolkowski relative states negativity.
SQiSW (generated by XY-interaction), CNOT and CZ gates are considered in ideal case and under amplitude and phase
relaxation. In addition, we consider an important task of analyzing entanglement of “pure” noise, which is obtained by
deducting an ideal gate from a noisy one.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yu. I. Bogdanov ; A. Yu. Chernyavskiy ; A. S. Holevo ; V. F. Lukichev ; Alexander A. Orlikovsky, et al.
Creating, maintaining, and breaking of quantum entanglement in quantum operations
", Proc. SPIE 8700, International Conference Micro- and Nano-Electronics 2012, 87001B (January 8, 2013); doi:10.1117/12.2017517; http://dx.doi.org/10.1117/12.2017517