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The Promise of Quantum Information

The Promise of Quantum Information. Detector X. Path A. Detector Y. SPS. Path B. Quantum Bomb Detection. Paths A & B going toward Y destructively interfere: Y never fires. (Single Photon Source). Quantum Bomb Detection. Detector X. Path A. Detector Y. SPS. Path B.

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The Promise of Quantum Information

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  1. The Promise of Quantum Information

  2. Detector X Path A Detector Y SPS Path B Quantum Bomb Detection Paths A & B going toward Y destructively interfere: Y never fires (Single Photon Source)

  3. Quantum Bomb Detection Detector X Path A Detector Y SPS Path B

  4. Quantum Bomb Detection Detector X Path A Detector Y SPS Path B S. Adams, Phys. Educ. 33 (6), 378-385, Nov. 1998

  5. D x Quantum Metrology x/l P. Kok, et. al, OPN, p. 24-27, Sept. 2002

  6. Eve Quantum Cryptography = 1 = 1 = 0 = 0 + or x Alice Bob N. Gisin, et al., Rev. Mod. Phys. 74, 145-195 (2002)

  7. Single Photons

  8. coincidence counts 0 interphoton times Measuring antibunching 76 MHz repetition rate, ~6 ps pulsed-laser excitation at 532 nm CW excitation at 532 nm

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