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Experimental protection of quantum coherence by using a phase-tunable image drive.

ABSTRACT: The protection of quantum coherence is essential for building a practical quantum computer able to manipulate, store and read quantum information with a high degree of fidelity. Recently, it has been proposed to increase the operation time of a qubit by means of strong pulses to achieve a dynamical decoupling of the qubit from its environment. We propose and demonstrate a simple and highly efficient alternative route based on Floquet modes, which increases the Rabi decay time ([Formula: see text]) in a number of materials with different spin Hamiltonians and environments. We demonstrate the regime [Formula: see text] with [Formula: see text] the relaxation time, thus providing a route for spin qubits and spin ensembles to be used in quantum information processing and storage.

SUBMITTER: Bertaina S

PROVIDER: S-EPMC7730451 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Experimental protection of quantum coherence by using a phase-tunable image drive.

Bertaina S S Vezin H H De Raedt H H Chiorescu I I

Scientific reports 20201210 1

The protection of quantum coherence is essential for building a practical quantum computer able to manipulate, store and read quantum information with a high degree of fidelity. Recently, it has been proposed to increase the operation time of a qubit by means of strong pulses to achieve a dynamical decoupling of the qubit from its environment. We propose and demonstrate a simple and highly efficient alternative route based on Floquet modes, which increases the Rabi decay time ([Formula: see text ...[more]

PMID: 33303783

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