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Quantum teleportation

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Abstract

Quantum Teleportation of one qubit of information using entangled state of two qubit is explained. It is shown that if quantum state of N qubits is to be teleported, the requirement is entangled state of at least 2N qubits. A scheme of teleportation of a superposition of even and odd coherent states was suggested by Van Enk and Hirota for teleportation of superposed coherent state, success of which is ½ according to the authors. It is shown how this scheme can be modified so as to make the success nearly 1. It is also explained how decoherence can be taken into account and how such schemas can be applied to similar phenomena of entanglement diversion and entanglement swapping.

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Authors and Affiliations

  1. Department of Physics, University of Allahabad, Allahabad, 211 002, Uttar Pradesh, India

    Hari Prakash

  2. M N Saha Centre of Space Studies, Institute of Inter-Disciplinary Studies, University of Allahabad, Allahabad, 211 002, Uttar Pradesh, India

    Hari Prakash

  3. K Banerjee Centre of Atmoshpheric Studies, Institute of Inter-Disciplinary Studies, University of Allahabad, Allahabad, 211 002, Uttar Pradesh, India

    Hari Prakash

  4. Department of Physics, Amity School of Engieering, Noida, 201 301, Uttar Pradesh, India

    Hari Prakash

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  1. Hari Prakash
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Correspondence to Hari Prakash.

Additional information

The talk based on the work of Hari Prakasha,b,c,1, Naresh Chandraa,b,2, Ranjana Prakasha,b,3 and Shivanid,4.

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Prakash, H. Quantum teleportation. Indian J Phys 84, 1021–1029 (2010). https://doi.org/10.1007/s12648-010-0096-x

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  • DOI: https://doi.org/10.1007/s12648-010-0096-x

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