Discrete time quantum walk with nitrogen-vacancy centers in diamond coupled to a superconducting flux qubit
arXiv:1301.1050 · doi:10.1103/PhysRevA.88.022303
Abstract
We propose a quantum-electrodynamics scheme for implementing the discrete-time, coined quantum walk with the walker corresponding to the phase degree of freedom for a quasi-magnon field realized in an ensemble of nitrogen-vacancy centres in diamond. The coin is realized as a superconducting flux qubit. Our scheme improves on an existing proposal for implementing quantum walks in cavity quantum electrodynamics by removing the cumbersome requirement of varying drive-pulse durations according to mean quasiparticle number. Our improvement is relevant to all indirect-coin-flip cavity quantum-electrodynamics realizations of quantum walks. Our numerical analysis shows that this scheme can realize a discrete quantum walk under realistic conditions.
10 pages, 7 figures
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Cited by in corpus (8)
- Optically detected magnetic resonance of high-density ensemble of NV centers in diamond
- Improving the lifetime of the NV center ensemble coupled with a superconducting flux qubit by applying magnetic fields
- CVD-growth of ultra-pure diamond, generation of NV centers by ion-implantation and their spectroscopic characterization for quantum technological applications
- An efficient protocol of quantum walk in circuit QED
- Quantum walks on a circle with optomechanical systems
- Quantum walk on the Bloch sphere
- Simulating the discrete-time quantum walk dynamics with simultaneous coin and shift operators
- Mimicking the Hadamard discrete-time quantum walk with a time-independent Hamiltonian