Spin squeezing and quantum correlations

Pramana

Mahmoud A A Sbaih²  P N Deepak²  Swarnamala Sirsi¹  K S Mallesh²  G Ramachandran³ 

[1] Department of Physics, Yuvaraja’s College, University of Mysore, Mysore 570 005, India$$;Department of Studies in Physics, University of Mysore, Mysore 570 006, India$$;Indian Institute of Astrophysics, Bangalore 560 034, India$$

关键词: Squeezing;    spin;    quantum correlation.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

We discuss the notion of spin squeezing considering two mutually exclusive classes of spin-𝑠 states, namely, oriented and non-oriented states. Our analysis shows that the oriented states are not squeezed while non-oriented states exhibit squeezing. We also present a new scheme for construction of spin-𝑠 states using 2𝑠 spinors oriented along different axes. Taking the case of 𝑠 = 1, we show that the `non-oriented’ nature and hence squeezing arise from the intrinsic quantum correlations that exist among the spinors in the coupled state.

【 授权许可】

Unknown