• PN Deepak

      Articles written in Pramana – Journal of Physics

    • Spin squeezing and quantum correlations

      KS Mallesh Swarnamala Sirsi Mahmoud AA Sbaih PN Deepak G Ramachandran

      More Details Abstract Fulltext PDF

      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.

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