Quantum and optical technology

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Single-qubit optical quantum fingerprinting

(2004)

Authors:

Rolf T Horn, SA Babichev, Karl-Peter Marzlin, AI Lvovsky, Barry C Sanders
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Conditionally prepared photon and quantum imaging

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 5551 (2004) 1-6

Authors:

Alexander I Lvovsky, Thomas Aichele
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Iterative maximum-likelihood reconstruction in quantum homodyne tomography

Journal of Physics B Atomic Molecular and Optical Physics IOP Publishing 6:6 (2004) s556
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Homodyne Tomography Characterization and Nonlocality of a Dual-Mode Optical Qubit

Physical Review Letters American Physical Society (APS) 92:19 (2004) 193601

Authors:

SA Babichev, J Appel, AI Lvovsky
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Remote Preparation of a Single-Mode Photonic Qubit by Measuring Field Quadrature Noise

Physical Review Letters 92:4 (2004) 479031-479034

Authors:

SA Babichev, B Brezger, AI Lvovsky

Abstract:

Remote state preparation of single-mode photonic quantum bits in a counter intuitive scheme was discussed. An electromagnetic field quadrature measurement was performed. The measurements collapses the nonlocal single-photon state into a superposition of the single-photon and vacuum states in the other mode. It was found that the preparation efficiency of the resulting qubit can be higher than that of the initial single photon.