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arXiv · 1212.0832

Experimental implementation of assisted quantum adiabatic passage in a single spin

Jingfu Zhang·Jeong Hyun Shim·Ingo Niemeyer·T. Taniguchi·T. Teraji·H. Abe·S. Onoda·T. Yamamoto·T. Ohshima·J. Isoya·Dieter Suter
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Abstract

Quantum adiabatic passages can be greatly accelerated by a suitable control field, called a counter-diabatic field, which varies during the scan through resonance. Here, we implement this technique on the electron spin of a single nitrogen-vacancy center in diamond. We demonstrate two versions of this scheme. The first follows closely the procedure originally proposed by Demirplak and Rice (J. Phys. Chem. A 107, 9937 (2003)). In the second scheme, we use a control field whose amplitude is constant, but its phase varies with time. This version, which we call the rapid-scan approach, allows an even faster passage through resonance and therefore makes it applicable also for systems with shorter decoherence times.

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Jingfu Zhang, Jeong Hyun Shim, Ingo Niemeyer, T. Taniguchi, T. Teraji, H. Abe, S. Onoda, T. Yamamoto, T. Ohshima, J. Isoya, Dieter Suter. 2013-06-13. Experimental implementation of assisted quantum adiabatic passage in a single spin. https://doi.org/10.1103/physrevlett.110.240501

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