Hybrid Quantum Device Based on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi><mml:mi>V</mml:mi></mml:math>Centers in Diamond Nanomechanical Resonators Plus Superconducting Waveguide Cavities

Li, Pengbo; Liu, Yongchun; Gao, Shaoyan; Xiang, Ze-Liang; Rabl, Peter; Xiao, Yun‐Feng; Li, Fuli

doi:10.1103/physrevapplied.4.044003

Cited by 96 publications

(59 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Color centers in diamond, such as germanium-vacancy (GeV) [37], nitrogen-vacancy (NV) center [38][39][40][41][42] and silicon-vacancy (SiV) center [43][44][45][46], play an important role in quantum science and technology [47][48][49][50][51]. Due to the high controllability and long coherence time [52][53][54][55][56][57][58][59][60], NV centers stand out among all kinds of solid-state systems.…”

Section: Introductionmentioning

confidence: 99%

Phononic-waveguide-assisted steady-state entanglement of silicon-vacancy centers

Qiao

Dong

et al. 2020

Phys. Rev. A

Self Cite

View full text Add to dashboard Cite

Multiparticle entanglement is of great significance for quantum metrology and quantum information processing. We here present an efficient scheme to generate stable multiparticle entanglement in a solid state setup, where an array of silicon-vacancy centers are embedded in a quasi-onedimensional acoustic diamond waveguide. In this scheme, the continuum of phonon modes induces a controllable dissipative coupling among the SiV centers. We show that, by an appropriate choice of the distance between the SiV centers, the dipole-dipole interactions can be switched off due to destructive interferences, thus realizing a Dicke superradiance model. This gives rise to an entangled steady state of SiV centers with high fidelities. The protocol provides a feasible setup for the generation of multiparticle entanglement in a solid state system.

show abstract

Section: Introductionmentioning

confidence: 99%

Phononic-waveguide-assisted steady-state entanglement of silicon-vacancy centers

Qiao

Dong

et al. 2020

Phys. Rev. A

Self Cite

View full text Add to dashboard Cite

show abstract

“…For more technical aspects, we notice that a hybrid device that integrating a microscale diamond beam with a single embedded NV center spin to a superconducting coplanar waveguide cavity was proposed65, where the diamond beam phonon can strongly couple to the cavity photon via a dielectric interaction through an ac electric field. Based on this method, quantum state transfer between the mechanical mode and the cavity can be realized.…”

Section: Discussionmentioning

confidence: 99%

Generation of macroscopic Schrödinger cat state in diamond mechanical resonator

Hou

Yang

Chen

et al. 2016

Sci Rep

View full text Add to dashboard Cite

We propose a scheme to generate macroscopic Schrödinger cat state (SCS) in diamond mechanical resonator (DMR) via the dynamical strain-mediated coupling mechanism. In our model, the direct coupling between the nitrogen-vacancy (NV) center and lattice strain field enables coherent spin–phonon interactions in the quantum regime. Based on a cyclic Δ-type transition structure of the NV center constructed by combining the quantized mechanical strain field and a pair of external microwave fields, the populations of the different energy levels can be selectively transferred by controlling microwave fields, and the SCS can be created by adjusting the controllable parameters of the system. Furthermore, we demonstrate the nonclassicality of the mechanical SCS both in non-dissipative case and dissipative case. The experimental feasibility and challenge are justified using currently available technology.

show abstract

“…Moreover, single-cqubit gates [32] and two-cqubit entangled Bell states [33] have been experimentally implemented recently. In addition, the circuit QED, consisting of microwave cavities and artificial atoms, is particularly attractive and has been considered as one of the leading candidates for quantum information processing [34][35][36][37][38][39][40][41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

One-step implementation of a multi-target-qubit controlled phase gate with cat-state qubits in circuit QED

et al. 2018

View full text Add to dashboard Cite

We propose a single-step implementation of a muti-target-qubit controlled phase gate with one cat-state qubit (cqubit) simultaneously controlling n − 1 target cqubits. The two logic states of a cqubit are represented by two orthogonal cat states of a single cavity mode. In this proposal, the gate is implemented with n microwave cavities coupled to a superconducting transmon qutrit.Because the qutrit remains in the ground state during the gate operation, decoherence caused due to the qutrit's energy relaxation and dephasing is greatly suppressed. The gate implementation is quite simple because only a single-step operation is needed and neither classical pulse nor measurement is required. Numerical simulations demonstrate that high-fidelity realization of a controlled phase gate with one cqubit simultaneously controlling two target cqubits is feasible with present circuit QED technology. This proposal can be extended to a wide range of physical systems to realize the proposed gate, such as multiple microwave or optical cavities coupled to a natural or artificial three-level atom.

show abstract

Hybrid Quantum Device Based onNVCenters in Diamond Nanomechanical Resonators Plus Superconducting Waveguide Cavities

Cited by 96 publications

References 75 publications

Phononic-waveguide-assisted steady-state entanglement of silicon-vacancy centers

Phononic-waveguide-assisted steady-state entanglement of silicon-vacancy centers

Generation of macroscopic Schrödinger cat state in diamond mechanical resonator

One-step implementation of a multi-target-qubit controlled phase gate with cat-state qubits in circuit QED

Contact Info

Product

Resources

About