{"title":"New angular momentum coherent states via the nonlinear Bose SU(2) generators and their nonclassical behaviors","authors":"Wei-Feng Wu","doi":"10.1142/s0217984924503214","DOIUrl":null,"url":null,"abstract":"<p>I theoretically construct a kind of new angular momentum coherent states by virtue of the nonlinear Bose SU(2) generators, and investigate their nonclassicality by analyzing the sub-Poissonian distributions, photon number distributions, entanglement entropy and Wigner phase-space distributions. The results show that the new states always have the sub-Poissonian distributions for all of the photon number sum <span><math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><msub><mrow><mi>n</mi></mrow><mrow><mi>a</mi></mrow></msub><mo>+</mo><msub><mrow><mi>n</mi></mrow><mrow><mi>b</mi></mrow></msub><mo>=</mo><mi>q</mi></math></span><span></span> of two modes, the photon number distributions are subjected to the parameter <i>q</i>, and the entanglement always increases quickly and then decreases slowly with increasing <span><math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mi>ς</mi></math></span><span></span>, and the new states for odd <i>q</i> possess more stronger nonclassicality than for even <i>q</i>.</p>","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"1 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Modern Physics Letters B","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1142/s0217984924503214","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
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Abstract
I theoretically construct a kind of new angular momentum coherent states by virtue of the nonlinear Bose SU(2) generators, and investigate their nonclassicality by analyzing the sub-Poissonian distributions, photon number distributions, entanglement entropy and Wigner phase-space distributions. The results show that the new states always have the sub-Poissonian distributions for all of the photon number sum of two modes, the photon number distributions are subjected to the parameter q, and the entanglement always increases quickly and then decreases slowly with increasing , and the new states for odd q possess more stronger nonclassicality than for even q.
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