Quantum computation based on capture-and-release dynamics
(2025) In Physical Review A 111(1).- Abstract
High-fidelity and decoherence-insensitive quantum gates are essential for achieving universal quantum computing. In quantum information processing, decoherence arising from excited states significantly contributes to the scheme's infidelity. Therefore, minimizing the average population of the excited state is crucial when designing quantum protocols. A promising approach involves utilizing capture-and-release dynamics to induce a complex phase on the ground state in a two-level system, effectively suppressing the integrated excited-state population. By applying this dynamics protocol to a Λ three-level system, we propose a scheme to construct arbitrary decoherence suppressed single-qubit and nontrivial two-qubit gates; meanwhile, by... (More)
High-fidelity and decoherence-insensitive quantum gates are essential for achieving universal quantum computing. In quantum information processing, decoherence arising from excited states significantly contributes to the scheme's infidelity. Therefore, minimizing the average population of the excited state is crucial when designing quantum protocols. A promising approach involves utilizing capture-and-release dynamics to induce a complex phase on the ground state in a two-level system, effectively suppressing the integrated excited-state population. By applying this dynamics protocol to a Λ three-level system, we propose a scheme to construct arbitrary decoherence suppressed single-qubit and nontrivial two-qubit gates; meanwhile, by incorporating the Zeno dynamics process in the construction of two-qubit logic gates, the large detuning and excitation of virtual photons render the scheme insensitive to qubit decoherence and cavity dissipation. Applying our scheme to the nitrogen-vacancy (NV) center as an example, we prove our scheme with higher fidelity than conventional nonadiabatic non-Abelian geometric gates while significantly enhancing the robustness against decoherence and frequency shift errors. These studies provide alternative approaches for constructing robust quantum gate operations. We also emphasize that the scheme is feasible for three-level quantum systems, not limited to NV center systems.
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- author
- Zhang, S. Y. ; Wei, J. F. ; Song, P. Y. ; Yan, L. L. ; Kinos, A. LU ; Su, Shi Lei and Chen, Gang
- organization
- publishing date
- 2025-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review A
- volume
- 111
- issue
- 1
- article number
- 012604
- publisher
- American Physical Society
- external identifiers
-
- scopus:85214440442
- ISSN
- 2469-9926
- DOI
- 10.1103/PhysRevA.111.012604
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2025 American Physical Society.
- id
- 98af1b05-b0eb-4cb3-8d49-35d2147d0f1b
- date added to LUP
- 2025-02-26 09:54:42
- date last changed
- 2025-04-04 13:58:53
@article{98af1b05-b0eb-4cb3-8d49-35d2147d0f1b,
abstract = {{<p>High-fidelity and decoherence-insensitive quantum gates are essential for achieving universal quantum computing. In quantum information processing, decoherence arising from excited states significantly contributes to the scheme's infidelity. Therefore, minimizing the average population of the excited state is crucial when designing quantum protocols. A promising approach involves utilizing capture-and-release dynamics to induce a complex phase on the ground state in a two-level system, effectively suppressing the integrated excited-state population. By applying this dynamics protocol to a Λ three-level system, we propose a scheme to construct arbitrary decoherence suppressed single-qubit and nontrivial two-qubit gates; meanwhile, by incorporating the Zeno dynamics process in the construction of two-qubit logic gates, the large detuning and excitation of virtual photons render the scheme insensitive to qubit decoherence and cavity dissipation. Applying our scheme to the nitrogen-vacancy (NV) center as an example, we prove our scheme with higher fidelity than conventional nonadiabatic non-Abelian geometric gates while significantly enhancing the robustness against decoherence and frequency shift errors. These studies provide alternative approaches for constructing robust quantum gate operations. We also emphasize that the scheme is feasible for three-level quantum systems, not limited to NV center systems.</p>}},
author = {{Zhang, S. Y. and Wei, J. F. and Song, P. Y. and Yan, L. L. and Kinos, A. and Su, Shi Lei and Chen, Gang}},
issn = {{2469-9926}},
language = {{eng}},
number = {{1}},
publisher = {{American Physical Society}},
series = {{Physical Review A}},
title = {{Quantum computation based on capture-and-release dynamics}},
url = {{http://dx.doi.org/10.1103/PhysRevA.111.012604}},
doi = {{10.1103/PhysRevA.111.012604}},
volume = {{111}},
year = {{2025}},
}