期刊
PHYSICAL REVIEW LETTERS
卷 127, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.127.043604
关键词
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资金
- National Natural Science Foundation of China [11704320]
- Natural Science Foundation of Hunan Province, China [2018JJ3482]
- National Basic Research Program of China [2015CB921103]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT13093]
- Spanish Government (MCIU/AEI/FEDER, UE) [PGC2018-095113-B-I00, PID2019-104002GB-C21, PID2019-104002GB-C22]
- Basque Government [IT986-16]
- Quantum Microwave Communication and Sensing [820505]
- EU Flagship on Quantum Technologies [820363]
- EU FET Open Grant Quromorphic [828826]
- Electronic-Photonic Integrated Quantum Simulator [899368]
- Shanghai Science and Technology Commission of Shanghai Municipality [2019SHZDZX01-ZX04]
General solutions to the quantum Rabi model involve subspaces with an unbounded number of photons. However, we have found special solutions for the multiqubit multimode case, with at most one photon and applicable to an arbitrary number of qubits and photon modes. Taking advantage of their peculiarities and the reach of the ultrastrong coupling regime, we propose an adiabatic scheme for the fast and deterministic generation of a two-qubit Bell state and arbitrary single-photon multimode W states with nonadiabatic error less than 1%.
General solutions to the quantum Rabi model involve subspaces with an unbounded number of photons. However, for the multiqubit multimode case, we find special solutions with at most one photon for an arbitrary number of qubits and photon modes. Such solutions exist for arbitrary single qubit-photon coupling strength with constant eigenenergy, while still being qubit-photon entangled states. Taking advantage of their peculiarities and the reach of the ultrastrong coupling regime, we propose an adiabatic scheme for the fast and deterministic generation of a two-qubit Bell state and arbitrary single-photon multimode W states with nonadiabatic error less than 1%. Finally, we propose a superconducting circuit design to catch and release the W states, and shows the experimental feasibility of the multimode multiqubit quantum Rabi model.
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