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Spin squeezing and quantum correlations

  • Proceedings Of The Second Winter Institute On Foundations Of Quantum Theory And Quantum Optics
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Abstract

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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Authors and Affiliations

  1. Department of Studies in Physics, University of Mysore, 570 006, Mysore, India

    KS Mallesh, Mahmoud AA Sbaih & PN Deepak

  2. Department of Physics, Yuvaraja’s College, University of Mysore, 570 005, Mysore, India

    Swarnamala Sirsi

  3. Indian Institute of Astrophysics, 560 034, Bangalore, India

    G Ramachandran

Authors
  1. KS Mallesh
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  2. Swarnamala Sirsi
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  3. Mahmoud AA Sbaih
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  4. PN Deepak
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  5. G Ramachandran
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Mallesh, K., Sirsi, S., Sbaih, M.A. et al. Spin squeezing and quantum correlations. Pramana - J Phys 59, 175–179 (2002). https://doi.org/10.1007/s12043-002-0106-4

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  • DOI: https://doi.org/10.1007/s12043-002-0106-4

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