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Controlled Entanglement Diversion Using GHZ Type Entangled Coherent State

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Abstract

We propose a scheme of controlled entanglement diversion of a bi-partite entangled coherent state using GHZ type entangled coherent state as a resource. The scheme involves only linear optical devices such as phase shifters, beam splitters and photon counters. Average fidelity of diversion is calculated and plotted. It is 2/3 for very small coherent amplitudes and approaches unity for appreciable coherent amplitude.

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Acknowledgements

One of the authors R.K. Pandey is thankful to UGC for providing financial assistance under UGC - D.Phil. fellowship. Discussions with Dr. Devendra Kumar Mishra and Ms. Shamiya Javed is gratefully acknowledged.

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  1. Physics Department, University of Allahabad, Allahabad, 211002, India

    Ranjana Prakash, Ravi Kamal Pandey & Hari Prakash

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  1. Ranjana Prakash
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  2. Ravi Kamal Pandey
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  3. Hari Prakash
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Correspondence to Ravi Kamal Pandey.

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Prakash, R., Pandey, R.K. & Prakash, H. Controlled Entanglement Diversion Using GHZ Type Entangled Coherent State. Int J Theor Phys 58, 1227–1236 (2019). https://doi.org/10.1007/s10773-019-04014-w

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