Quantum memory using a hybrid circuit with flux qubits and NV centers

Abstract

We propose how to realize high-fidelity quantum storage using a hybrid quantum architecture including two coupled flux qubits and a nitrogen-vacancy center ensemble (NVE). One of the flux qubits is considered as the quantum computing processor and the NVE serves as the quantum memory. By separating the computing and memory units, the influence of the quantum computing process on the quantum memory can be effectively eliminated, and hence the quantum storage of an arbitrary quantum state of the computing qubit could be achieved with high fidelity. Furthermore the present proposal is robust with respect to fluctuations of the system parameters, and it is experimentally feasibile with currently available technology.

10 pages, 8 figures

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Cited by in corpus (28)

• Hybrid quantum device with nitrogen-vacancy centers in diamond coupled to carbon nanotubes
• Enhancing spin-phonon and spin-spin interactions using linear resources in a hybrid quantum system
• Macroscopic quantum entanglement in modulated optomechanics
• Hybrid quantum system with nitrogen-vacancy centers in diamond coupled to surface phonon polaritons in piezomagnetic superlattices
• Preparing multiparticle entangled states of NV centers via adiabatic ground-state transitions
• Coupling spin ensembles via superconducting flux qubits
• Raman quantum memory based on an ensemble of nitrogen-vacancy centers coupled to a microcavity
• Simulating the Lipkin-Meshkov-Glick model in a hybrid quantum system
• Strong tunable spin-spin interaction in a weakly coupled nitrogen vacancy spin-cavity electromechanical system
• Single-Nitrogen-vacancy-center quantum memory for a superconducting flux qubit mediated by a ferromagnet
• Spin squeezing by one-photon-two-atom excitations processes in atomic ensembles
• Longitudinal relaxation of a nitrogen-vacancy center in a spin bath by generalized cluster-correlation expansion method
• NV-Metamaterial: Tunable Quantum Hyperbolic Metamaterial Using Nitrogen-Vacancy Centers in Diamond
• Interplay of quantum phase transition and flat band in hybrid lattices
• Coupling a single NV center with a superconducting qubit via the electro-optic effect
• Excepional Points from Hamiltonians of hybrid physical systems: Squeezing and anti-Squeezing
• Hybrid quantum computing with ancillas
• Ancilla-driven quantum computation for qudits and continuous variables
• Low-temperature environments for quantum computation and quantum simulation
• Optimal Spin Squeezed Steady State induced by the dynamics of non-hermtian hamiltonians
• Scalable quantum information transfer between nitrogen-vacancy-center ensembles
• Controlling properties of a hybrid Cooper pair box interacting with a nanomechanical resonator in the presence of Kerr nonlinearities and losses
• Quantum computation mediated by ancillary qudits and spin coherent states
• NOON state generation with phonons in acoustic wave resonators assisted by a nitrogen-vacancy-center ensemble
• Dispersive Jaynes-Cummings Hamiltonian describing a two-level atom interacting with a two-level single mode field
• Transferring multiqubit entanglement onto memory qubits in a decoherence-free subspace
• Minimal ancilla mediated quantum computation
• Interfacing a topological qubit with a spin qubit in a hybrid quantum system