Preparation and properties of a non-Gaussian state by quantum catalysis with thermal state input

Xiao-Yan Zhang, Zhen-Bao Feng, Ji-Suo Wang, Xiang-Guo Meng and Bao-Long Liang

Chaos, Solitons & Fractals, 2024, vol. 182, issue C

Abstract: We theoretically introduce a new kind of non-Gaussian state, namely, the mixture of multiphoton added thermal states, achieved through multiphoton measurements at one output port of the beam splitter (termed multiphoton catalysis) for thermal state input. We discuss the success probabilities of detection (the normalization factors). Furthermore, we investigate their nonclassical properties based on the nonclassical depth, photon number distribution, and photocount distribution. It is shown that the multiphoton catalysis presents a better nonclassical performance by controlling the thermal parameter, catalyzed photon number and the transmissivity of the beam splitter. In addition, the nonclassicality is further examined through the partial negativity of the Wigner function, which reveals that multiphoton catalysis operation can prepare highly nonclassical quantum states. These results indicate that the preparation of a non-Gaussian states may have potential applications in the realms of quantum information processing and quantum metrology.

Keywords: Mixture of multiphoton added thermal states; Multiphoton catalysis; Nonclassicality; Wigner function (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:182:y:2024:i:c:s0960077924002881

DOI: 10.1016/j.chaos.2024.114736

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