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http://hdl.handle.net/10397/95648
Title: | Amplification of optical Schrödinger cat states with an implementation protocol based on a frequency comb | Authors: | Song, H Zhang, G Wang, X Yonezawa, H Fan, K |
Issue Date: | Apr-2022 | Source: | Physical review A, Apr. 2022, v. 105, no. 4, 43713 | Abstract: | We proposed and analyzed a scheme to generate large-size Schrödinger cat states based on linear operations of Fock states, squeezed vacuum states, and conditional measurements. By conducting conditional measurements via photon number detectors, two unbalanced small-amplitude Schrödinger kitten states combined by a beam splitter can be amplified to a large-size cat state with the same parity. According to simulation results, two Schrödinger odd kitten states with amplitudes of |β|=1.06 and |β|=1.11 generated from one-photon-subtracted 3 dB squeezed vacuum states, are amplified to an odd cat state of |β|=1.73 with a fidelity of F=99%. A large-size Schrödinger odd cat state with |β|=2.51 and F=97.30% is predicted when 5.91 dB squeezed vacuum states are employed. According to the analysis on the impacts of experimental imperfections in practice, Schrödinger odd cat states of |β|>2 are available. A feasible configuration based on a quantum frequency comb is developed to realize the large-size cat state generation scheme we proposed. | Publisher: | American Physical Society | Journal: | Physical review A | ISSN: | 2469-9926 | EISSN: | 2469-9934 | DOI: | 10.1103/PhysRevA.105.043713 | Rights: | ©2022 American Physical Society The following publication Song, H., Zhang, G., Wang, X., Yonezawa, H., & Fan, K. (2022). Amplification of optical Schrödinger cat states with an implementation protocol based on a frequency comb. Physical Review A, 105(4), 043713 is available at https://doi.org/10.1103/PhysRevA.105.043713. |
Appears in Collections: | Journal/Magazine Article |
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Song_Amplification_optical_Schrödinger.pdf | 1.61 MB | Adobe PDF | View/Open |
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