4 August 2003 Quantum computation with linear optics
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Ever since Knill, Laflamme and Milburn [Nature (London) 409, 46 (2001)] showed that nondeterministic quantum logic operations could be performed with linear optical elements, additional photons (ancilla) and projective measurements, the idea of linear-optics quantum computation has attracted considerable interest. Our group has recently demonstrated several devices of this kind. We give an overview of recent experimental results, including the quantum parity check, the destructive controlled-NOT, and a cyclical quantum memory. The need for high-efficiency detection of single photons, and for detectors capable of distinguishing photon number will be discussed. Some experimental improvements towards meeting that need will be presented.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael J. Fitch, Michael J. Fitch, Michelle M. Donegan, Michelle M. Donegan, Bryan Charles Jacobs, Bryan Charles Jacobs, Todd B. Pittman, Todd B. Pittman, James D. Franson, James D. Franson, } "Quantum computation with linear optics", Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); doi: 10.1117/12.488527; https://doi.org/10.1117/12.488527


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