Single-photon-induced two qubits excitation without breaking parity symmetry

We investigate theoretically the model of two \qubits" system (one qubit having an auxiliary level) interacting with a single-mode resonator in the ultrastrong coupling regime. We show that a single photon could simultaneously excite two qubits without breaking the parity symmetry of system by...

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Bibliographic Details
Published inarXiv.org
Main Authors Qian Bin, Xin-You Lü, Shang-Wu, Bin, Gui-Lei, Zhu, Wu, Ying
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 15.01.2018
Subjects
Breaking
Excitation
Feasibility studies
Parameter identification
Parity
Physics - Quantum Physics
Quantum phenomena
Quantum theory
Qubits (quantum computing)
Symmetry
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Summary:We investigate theoretically the model of two \qubits" system (one qubit having an auxiliary level) interacting with a single-mode resonator in the ultrastrong coupling regime. We show that a single photon could simultaneously excite two qubits without breaking the parity symmetry of system by properly encoding the excited states of qubits. The optimal parameter regime for achieving high probability approaching one is identified in the case of ignoring the system dissipation. Moreover, using experimentally feasible parameters, we also analyze the dissipation dynamics of the system, and present the realization of two-qubit excitation induced by single-photon. This work offers an alternative approach to realize the single-photon-induced two qubits excitation, which should advance the development of single-photon quantum technologies and have potential applications in quantum information science.
ISSN:2331-8422
DOI:10.48550/arxiv.1801.04789