1. The Promise of Quantum Information

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

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

4. SPS Detector X Detector Y Path A Path B EventProb.Conclusion X fires¼Ambiguous Y fires¼There was a bomb Bang!½There was a bomb, but… Quantum Bomb Detection S. Adams, Phys. Educ. 33 (6), 378-385, Nov. 1998

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

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

7. Single Photons

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