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Spin squeezing in Dicke-class of states with non-orthogonal spinors |
| K S Akhilesh1, K S Mallesh1, Sudha2,3, Praveen G Hegde1 |
1 Department of Physics, University of Mysore, Manasagangotri, Mysuru-570006, Karnataka, India;
2 Department of Physics, Kuvempu University, Shankaraghatta, Shimoga-577 451, India;
3 Inspire Institute Inc., Alexandria, Virginia 22303, USA |
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Abstract The celebrated Majorana representation is exploited to investigate spin squeezing in different classes of pure symmetric states of N qubits with two distinct spinors, namely the Dicke-class of states. On obtaining a general expression for spin squeezing parameter, the variation of squeezing for different configurations is studied in detail. It is shown that the states in the Dicke-class, characterized by two-distinct non-orthogonal spinors, exhibit squeezing.
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Received: 09 January 2019
Revised: 29 March 2019
Accepted manuscript online:
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PACS:
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Bg
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(Entanglement production and manipulation)
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Corresponding Authors:
Sudha
E-mail: arss@rediffmail.com
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Cite this article:
K S Akhilesh, K S Mallesh, Sudha, Praveen G Hegde Spin squeezing in Dicke-class of states with non-orthogonal spinors 2019 Chin. Phys. B 28 060302
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