Revista Mexicana de Física
Non-Markovian decoherence in donor-based charge quantum bits
F. Lastra, Sebasti 'an Reyes, Sascha Wallentowitz
Abstract
"The decoherence of a donor-based charge quantum bit is obtained in an analytical way, starting from a physically motivated preparation process that leaves the acoustic phonon bath in a non-thermal state. The non-Markovian decoherence rate varies with time and includes a recoherence at later times. The resulting coherence time is shown to be inversely proportional to temperature."