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

• URL: http://arxiv.org/abs/2001.02417v4
• Date: Wed, 25 May 2022 15:01:00 GMT
• Title: Experimental protection of quantum coherence by using a phase-tunable image drive
• Authors: Sylvain Bertaina, Herv\'e Vezin, Hans De Raedt, Irinel Chiorescu
• Abstract summary: The protection of qubit coherence is an essential task in order to build a practical quantum computer. We propose and demonstrate a simple and highly efficient alternative pulse protocol based on Floquet modes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The protection of qubit coherence is an essential task in order to build 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 pulse protocol based on Floquet modes, which increases the decoherence time in a number of materials with different spin Hamiltonians and environments. We demonstrate the regime $T_2\approx T_1$, thus providing a route for spin qubits and spin ensembles to be used in quantum information processing and storage.

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