Collectively Enhanced Interactions in Solid-state Spin Qubits

Abstract

We propose and analyze a technique to collectively enhance interactions between solid-state quantum registers composed from random networks of spin qubits. In such systems, disordered dipolar interactions generically result in localization. Here, we demonstrate the emergence of a single collective delocalized eigenmode as one turns on a transverse magnetic field. The interaction strength between this symmetric collective mode and a remote spin qubit is enhanced by square root of the number of spins participating in the delocalized mode. Mediated by such collective enhancement, long-range quantum logic between remote spin registers can occur at distances consistent with optical addressing. A specific implementation utilizing Nitrogen-Vacancy defects in diamond is discussed and the effects of decoherence are considered.

5 pages, 4 figures

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Cited by in corpus (15)

• Quantum Simulation
• Nuclear spin-wave quantum register for a solid state qubit
• Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond
• High-density quantum sensing with dissipative first order transitions
• Fractional Quantum Hall States of Rydberg Polaritons
• Enhanced concentrations of nitrogen-vacancy centers in diamond through TEM irradiation
• Experimental realization of time-dependent phase-modulated continuous dynamical decoupling
• Cooperative single-photon subradiant states
• Cooperative Fluorescence from a Strongly Driven Dilute Cloud of Atoms
• All-optical coherent population trapping with defect spin ensembles in silicon carbide
• Optically-pumped dynamic nuclear hyperpolarization in ${}^{13}$C enriched diamond
• Spin ensemble-based AC magnetometry using concatenated dynamical decoupling at low temperatures
• Tailored jump operators for purely dissipative quantum magnetism
• Spin Amplification with Inhomogeneous Broadening
• Generating non-classical states from spin coherent states via interaction with ancillary spins