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Peng, J; Zheng, CX; Guo, GJ; Guo, XY; Zhang, X; Deng, CS; Ju, GX; Ren, ZZ; Lamata, L; Solano, E; Peng, J (reprint author), Xiangtan Univ, Lab Quantum Engn & Micronano Energy Technol, Xiangtan 411105, Hunan, Peoples R China.; Peng, J (reprint author), Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China.
Dark-like states for the multi-qubit and multi-photon Rabi models
Source PublicationJOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Language英语
KeywordDark-like States Multi-qubit And Multi-photon Quantum Rabi Models Exceptional Solution
AbstractThere are special solutions, the well-known dark states, to the even-qubit Dicke models, which are the products of two-qubit singlets and a Fock state, where the qubits are decoupled from the photon field. These spin singlets can be used to store quantum correlations since they preserve entanglement even under dissipation, driving and dipole-dipole interactions. One of the features for these 'dark states' is that their eigenenergies are independent of the qubit-photon coupling strength. Here we have obtained a novel kind of exceptional solution-'dark-like states' for the multi-qubit and multi-photon Rabi models, whose eigenenergies are also constant in the whole coupling regime. But unlike the 'dark states', the qubits and photon field are coupled. Furthermore, the photon numbers are bounded from above commonly at 1, which is different from the one-qubit case. The existence conditions of these exceptional solutions are simpler than the exact isolated solutions, and may be fine tuned in experiments. While solutions to the single-qubit and multi-photon Rabi model exist only if the photon number M <= 2 and the coupling strength is below a certain critical value, the dark-like eigenstates for the multi-qubit and multi-photon Rabi model exist regardless of these constraints. In view of these properties of the dark-like states, they may find similar applications as ` dark states' in quantum information.
2017
Volume50Issue:17Pages:174003
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1088/1751-8121/aa651d
Funding OrganizationNational Natural Science Foundation of China [11547228, 11535004, 11604240, 11204263, 11035001, 11404274, 10735010, 10975072, 11375086, 11120101005, 11175085, 11235001, 11505292] ; National Natural Science Foundation of China [11547228, 11535004, 11604240, 11204263, 11035001, 11404274, 10735010, 10975072, 11375086, 11120101005, 11175085, 11235001, 11505292] ; National Natural Science Foundation of China [11547228, 11535004, 11604240, 11204263, 11035001, 11404274, 10735010, 10975072, 11375086, 11120101005, 11175085, 11235001, 11505292] ; National Natural Science Foundation of China [11547228, 11535004, 11604240, 11204263, 11035001, 11404274, 10735010, 10975072, 11375086, 11120101005, 11175085, 11235001, 11505292] ; Scientific Research Fund of Hunan Provincial Education Department [16B250, 16C1531, 16C1528] ; Scientific Research Fund of Hunan Provincial Education Department [16B250, 16C1531, 16C1528] ; Scientific Research Fund of Hunan Provincial Education Department [16B250, 16C1531, 16C1528] ; Scientific Research Fund of Hunan Provincial Education Department [16B250, 16C1531, 16C1528] ; 973 National Major State Basic Research and Development of China [2010CB327803, 2013CB834400] ; 973 National Major State Basic Research and Development of China [2010CB327803, 2013CB834400] ; 973 National Major State Basic Research and Development of China [2010CB327803, 2013CB834400] ; 973 National Major State Basic Research and Development of China [2010CB327803, 2013CB834400] ; Program for Changjiang Scholars and Innovative Research Team in University [IRT13093] ; Program for Changjiang Scholars and Innovative Research Team in University [IRT13093] ; Program for Changjiang Scholars and Innovative Research Team in University [IRT13093] ; Program for Changjiang Scholars and Innovative Research Team in University [IRT13093] ; Spanish MINECO/FEDER [FIS2015-69983-P] ; Spanish MINECO/FEDER [FIS2015-69983-P] ; Spanish MINECO/FEDER [FIS2015-69983-P] ; Spanish MINECO/FEDER [FIS2015-69983-P] ; UPV/EHU [UFI 11/55] ; UPV/EHU [UFI 11/55] ; UPV/EHU [UFI 11/55] ; UPV/EHU [UFI 11/55] ; Basque Government [IT986-16] ; Basque Government [IT986-16] ; Basque Government [IT986-16] ; Basque Government [IT986-16] ; Ramon y Cajal Grant [RYC-2012-11391] ; Ramon y Cajal Grant [RYC-2012-11391] ; Ramon y Cajal Grant [RYC-2012-11391] ; Ramon y Cajal Grant [RYC-2012-11391]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22073
Collection理论物理所科研产出_SCI论文
Corresponding AuthorPeng, J (reprint author), Xiangtan Univ, Lab Quantum Engn & Micronano Energy Technol, Xiangtan 411105, Hunan, Peoples R China.; Peng, J (reprint author), Xiangtan Univ, Sch Phys & Optoelect, Xiangtan 411105, Hunan, Peoples R China.
Recommended Citation
GB/T 7714
Peng, J,Zheng, CX,Guo, GJ,et al. Dark-like states for the multi-qubit and multi-photon Rabi models[J]. JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL,2017,50(17):174003.
APA Peng, J.,Zheng, CX.,Guo, GJ.,Guo, XY.,Zhang, X.,...&Peng, J .(2017).Dark-like states for the multi-qubit and multi-photon Rabi models.JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL,50(17),174003.
MLA Peng, J,et al."Dark-like states for the multi-qubit and multi-photon Rabi models".JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 50.17(2017):174003.
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