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Quantum Information Processing

One-step construction of a multi-qubit controlled phase gate with ensembles of nitrogen-vacancy centers in hybrid circuit QED

  • 01-06-2022
Published in:
Authors
Jin Xu
Tong Liu
Published in
Quantum Information Processing | Issue 6/2022

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Abstract

The article discusses a groundbreaking approach to constructing a multi-qubit controlled phase gate using nitrogen-vacancy (NV) centers in a hybrid circuit QED system. The method employs cross-Kerr nonlinearities mediated by a superconducting flux qutrit, enabling a single-step operation that is independent of the number of NV ensembles. This approach significantly reduces decoherence and operational complexity, making it a promising solution for large-scale quantum information processing. The article provides a detailed derivation of the effective Hamiltonian and demonstrates the feasibility of the method through numerical simulations, highlighting its potential for high-fidelity multi-qubit gates in solid-state quantum systems.
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previous article Entanglement in a two-qubit Heisenberg XXX model with x-components of Dzyaloshinskii–Moriya and Kaplan–Shekhtman–Entin-Wohlman–Aharony interactions
next article Higher-rate quantum key expansion scheme
Title
One-step construction of a multi-qubit controlled phase gate with ensembles of nitrogen-vacancy centers in hybrid circuit QED
Authors
Jin Xu
Tong Liu
Publication date
01-06-2022
Publisher
Springer US
Published in
Quantum Information Processing / Issue 6/2022
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-022-03552-3
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