We have implemented simple sequences of photon addition and subtraction to/from a light field. By verifying the difference in the final states when using the two operators in reverse order, we provide the first direct test of quantum commutation rules.
Oct 23 2006
Single-photon remote temporal delocalization and violation of a Bell’s type inequality
Jul 23 2006
Direct interferometric measurement of atomic dipole phases in high-order harmonic generation
Oct 05 2005
The 2005 Nobel Prize in Physics awarded to Theodor W. Hansch
Oct 23 2004