Controllable Non-Markovianity for a Spin Qubit in Diamond

Physical Review Letters
J F HaaseS F Huelga

Abstract

We present a flexible scheme to realize non-Markovian dynamics of an electronic spin qubit, using a nitrogen-vacancy center in diamond where the inherent nitrogen spin serves as a regulator of the dynamics. By changing the population of the nitrogen spin, we show that we can smoothly tune the non-Markovianity of the electron spin's dynamics. Furthermore, we examine the decoherence dynamics induced by the spin bath to exclude other sources of non-Markovianity. The amount of collected measurement data is kept at a minimum by employing Bayesian data analysis. This allows for a precise quantification of the parameters involved in the description of the dynamics and a prediction of so far unobserved data points.

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Citations

May 11, 2019·Physical Review Letters·I A LuchnikovS N Filippov
Apr 28, 2020·Physical Review Letters·I A LuchnikovS N Filippov
Jun 13, 2020·Physical Review Letters·Ya-Nan LuXin-Yu Pan
Dec 17, 2020·Chemical Reviews·Kade Head-MarsdenPrineha Narang

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