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Teleportation of a Tripartite Entangled Coherent State

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At Amity Institute of Applied Sciences, Amity University, Noida, India. 20 Mar 2014.

Publicada em: Ciências, Tecnologia, Espiritual
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Teleportation of a Tripartite Entangled Coherent State

  1. 1. Teleportation of a Tripartite Entangled Coherent State Vasudha Pande Advisor: Dr. Shivani A. Kumar Course: M.Sc. AP (Sem-IV) 20th March 2014
  2. 2. What teleportation is not. 2
  3. 3. 3 t space time
  4. 4. corporeal transport 4 t' space time
  5. 5. What teleportation is. 5
  6. 6. 6 t space time
  7. 7. disembodied transport 7 t' space time
  8. 8. What are entangled coherent states? 8
  9. 9. 9 minimum uncertainty information state nonlocal quantum correlation basis-independent inseparability eigenstates of annihilation operator
  10. 10. 10 quantum channel
  11. 11. Meet Alice and Bob. 11
  12. 12. 12 1. distribution 1 4 2 3 5 6 7
  13. 13. 13 1 4 2 3 5 6 7 information state
  14. 14. 14 1 4 2 3 5 6 7
  15. 15. 15 2. phase shifting 11 8 1 4 2 3 5 6 7
  16. 16. 16 3. beam splitting 1 4 8 11 5 6 7 9 10 13 12
  17. 17. 17 4. phase shifting 9 13 10 12 5 6 7 14
  18. 18. 18 5. measurement 9 13 14 5 6 7 3 cbits
  19. 19. 19 6. cbit transfer 5 6 7 3 cbits
  20. 20. 20 7. decision 5 6 7 3 cbits Which UT?
  21. 21. 21 8. unitary transformation 5 6 7 recovered information
  22. 22. 22 finalglobalstate
  23. 23. Alice’s results & corr. recovered information 23 1 2 3 4 5 6
  24. 24. fidelity 24(perfect teleportation) (almost perfect teleportation)
  25. 25. 25 average fidelity              2 cos4999.0 2 sin5181.0 2 sin0181.034817.0 222  avF                              2 sin0048.1 2 cos9952.0 2 sin0024.1 2 cos9976.0 4978.0 2 sin1261.03672.0 22 2 22 2    avF 1 2  2 2 
  26. 26. 26
  27. 27. recap 27
  28. 28. BS BS PS PS UT 1 2 3 4 5 6 7 8 9 10 11 12 13 3 cbits time Alice Bob |R> |E> |I> D M PS 14
  29. 29. more in dissertation 29
  30. 30. What next? 30
  31. 31. 31
  32. 32. 4 2 3 6 7 1 5 noise! 32
  33. 33. Thanks! Questions? 33

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