Long-Range Interaction of Spin-Qubits via Ferromagnets

Abstract

We propose a mechanism of coherent coupling between distant spin qubits interacting dipolarly with a ferromagnet. We derive an effective two-spin interaction Hamiltonian and estimate the coupling strength. We discuss the mechanisms of decoherence induced solely by the coupling to the ferromagnet and show that there is a regime where it is negligible. Finally, we present a sequence for the implementation of the entangling CNOT gate and estimate the corresponding operation time to be a few tens of nanoseconds. A particularly promising application of our proposal is to atomistic spin-qubits such as silicon-based qubits and NV-centers in diamond to which existing coupling schemes do not apply.

6 pages, 7 pages of appendix

References in corpus (13)

• Fault-tolerant quantum computation with high threshold in two dimensions
• A single-atom electron spin qubit in silicon
• High-fidelity projective readout of a solid-state spin quantum register
• Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
• High-fidelity readout and control of a nuclear spin qubit in silicon
• Prospects for Spin-Based Quantum Computing
• Decoherence-protected quantum gates for a hybrid solid-state spin register
• Quantum computing with nearest neighbor interactions and error rates over 1%
• Dynamically Error-Corrected Gates for Universal Quantum Computation
• Electric-field controlled spin reversal in a quantum dot with ferromagnetic contacts
• Spin dynamics in InAs-nanowire quantum-dots coupled to a transmission line
• Dephasing of solid-state qubits at optimal points
• Ultra-long distance interaction between spin qubits

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