Title :
Qubit degradation due to cross-phase modulation photon-number measurement
Author :
Shapiro, Jeffrey H. ; Bondurant, Roy S.
Author_Institution :
Res. Lab. of Electron., Massachusetts Inst. of Technol., Cambridge, MA
Abstract :
The error probability of quantum nondemolition detection of a vacuum/one-photon qubit is shown to increase from 0 to 1/2 as the post-interaction fidelity increases from 2/3 to 1.
Keywords :
optical Kerr effect; optical modulation; phase modulation; photodetectors; photon counting; Kerr effect; cross-phase modulation; error probability; one-photon qubit; photon-number measurement; quantum nondemolition detection; qubit degradation; Degradation; Elementary particle vacuum; Error probability; Laboratories; Nonlinear optics; Optical modulation; Photonics Society; Probes; Quantum computing; Quantum mechanics; (030.5260) Photon counting; (270.0270) Quantum optics; (270.5290) Photon statistics; (270.5570) Quantum detectors;
Conference_Titel :
Lasers and Electro-Optics, 2006 and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on
Conference_Location :
Long Beach, CA
Print_ISBN :
978-1-55752-813-1
Electronic_ISBN :
978-1-55752-813-1
DOI :
10.1109/CLEO.2006.4628965
