Adiabatic dynamical-decoupling-based control of nuclear spin registers

O. T. Whaites, J. Randall, T. H. Taminiau, T. S. Monteiro

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
10 Downloads (Pure)

Abstract

The use of the nuclear spins surrounding electron spin qubits as quantum registers and long-lived memories opens the way to new applications in quantum information and biological sensing. Hence, there is a need for generic and robust forms of control of the nuclear registers. Although adiabatic gates are widely used in quantum information, they can become too slow to outpace decoherence. Here, we introduce a technique whereby adiabatic gates arise from the dynamical decoupling protocols that simultaneously extend coherence. We illustrate this pulse-based adiabatic control for nuclear spins around NV centers in diamond. We obtain a closed-form expression from Landau-Zener theory and show that it reliably describes the dynamics. By identifying robust Floquet states, we show that the technique enables polarization, one-shot flips, and state storage for nuclear spins. These results introduce a control paradigm that combines dynamical decoupling with adiabatic evolution.

Original languageEnglish
Article number013214
Number of pages10
JournalPhysical Review Research
Volume4
Issue number1
DOIs
Publication statusPublished - 2022

Fingerprint

Dive into the research topics of 'Adiabatic dynamical-decoupling-based control of nuclear spin registers'. Together they form a unique fingerprint.

Cite this