Measurement of conditional phase shifts for quantum logic

  title={Measurement of conditional phase shifts for quantum logic},
  author={Q.A.Turchette and C.J.Hood and W.Lange and H.Mabuchi and H.J.Kimble},
  • Q.A.Turchette, C.J.Hood, +2 authors H.J.Kimble
  • Published 1995
  • Physics
  • Measurements of the birefringence of a single atom strongly coupled to a high-finesse optical resonator are reported, with nonlinear phase shifts observed for intracavity photon number much less than one. A proposal to utilize the measured conditional phase shifts for implementing quantum logic via a quantum-phase gate (QPG) is considered. Within the context of a simple model for the field transformation, the parameters of the"truth table"for the QPG are determined. 
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