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Coherence Trapping and Information Back-flow in Dephasing Qubits by Addis, Carole; Brebner, Gregoire; Haikka, Pinja; Maniscalco, Sabrina is a scholarly article available to read on EtoBox.

What is Coherence Trapping and Information Back-flow in Dephasing Qubits about?

We study the interplay between coherence trapping, information back-flow and the form of the reservoir spectral density for dephasing qubits. We show that stationary coherence is maximized when the qubit undergoes non-Markovian dynamics, and we elucidate the different roles played by the low and high frequency parts of the environmental spectrum. We show that the low frequencies fully determine the presence or absence of information back-flow while the high frequencies dictate the maximal amount of coherence trapping.

Author

Addis, Carole; Brebner, Gregoire; Haikka, Pinja; Maniscalco, Sabrina

Published

2013

Language

EN