Darmstadt 2008 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 61: Quanteninformation (Photonen und nichtklassisches Licht II)
Q 61.4: Talk
Friday, March 14, 2008, 14:45–15:00, 1A
Linear optics unleashed — •Konrad Kieling1,2 and Jens Eisert1,2 — 1QOLS, Blackett Laboratory, Imperial College London, Prince Consort Road, London SW7 2BW, UK — 2Institute for Mathematical Sciences, Imperial College London, Prince’s Gate, London SW7 2PE, UK
Linear optical architectures for quantum information processing are based on single-photon sources, photon-number preserving optical elements, and photon (number resolving) detectors. Due to the allowed set of tools being narrowed down, specific problems can often be cast into a mathematical framework that allows for the assessment of possible state manipulation, measurement and preparation. The measurement based nature of optical gates and the issue of encoding qubits in a way to easily access them experimentally leads to a rich structure of problems. In this talk, we will discuss issues of resource consumption in optical state preparation, optimal success probabilities, and prescriptions of how to build linear optical quantum gates and measurement devices.