Quantum and optical technology

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Bulk contribution from isotropic media in surface sum-frequency generation

Physical Review B American Physical Society (APS) 66:20 (2002) 205110

Authors:

H Held, AI Lvovsky, X Wei, YR Shen
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Quantum scissors: teleportation of single-mode optical states by means of a nonlocal single photon

(2002)

Authors:

SA Babichev, J Ries, AI Lvovsky
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Synthesis and tomographic characterization of the displaced Fock state of light

Physical Review A American Physical Society (APS) 66:1 (2002) 011801

Authors:

AI Lvovsky, SA Babichev
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Quantum-optical catalysis: Generating nonclassical states of light by means of linear optics

Physical Review Letters 88:25 I (2002) 2504011-2504014

Authors:

AI Lvovsky, J Mlynek

Abstract:

The preparation and characterization of a new quantum state of light, a coherent superposition of the single-photon and vaccum states was discussed. This state was generalized by a catalytic process in which the single photon state enabled the interaction without being affected. A transition between a highly classical and a highly nonclassical state of light occurred by changing the amplitude of the target coherent state.
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Quantum-optical catalysis: generating nonclassical states of light by means of linear optics.

Physical review letters 88:25 Pt 1 (2002) 250401

Authors:

AI Lvovsky, J Mlynek

Abstract:

We report preparation and characterization of coherent superposition states t[0>+alpha]1> of the electromagnetic field by conditional measurements on a beam splitter. This state is generated in one of the beam splitter output channels if a coherent state [alpha> and a single-photon Fock state [1> are present in the two input ports and a single photon is registered in the other beam splitter output. The single photon thus plays a role of a "catalyst:" it is explicitly present in both the input and the output channels of the interaction yet facilitates generation of a nonclassical state of light.
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