Quantum-optical catalysis: generating nonclassical states of light by means of linear optics.
A. I. Lvovsky,J. Mlynek +1 more
TLDR
The single photon 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.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.read more
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Quantum Measurement and Control
TL;DR: In this paper, the authors present a comprehensive treatment of modern quantum measurement and measurement-based quantum control, which are vital elements for realizing quantum technology, including quantum information, quantum metrology, quantum control and related fields.
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Continuous-variable optical quantum-state tomography
A. I. Lvovsky,Michael G. Raymer +1 more
TL;DR: In this paper, a review of the latest developments in continuous-variable quantum-state tomography of optical fields and photons, placing a special emphasis on its practical aspects and applications in quantum information technology, is presented.
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Research on hidden variable theories: A review of recent progresses
TL;DR: In this paper, the authors present the most recent progresses on the studies related to hidden variable theories (HVT), both from an experimental and a theoretical point of view, giving a larger emphasis to results with a direct experimental application.
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Hybrid discrete- and continuous-variable quantum information
TL;DR: The traditional approaches to quantum information processing using either discrete or continuous variables can be combined in hybrid protocols for tasks including quantum teleportation, computation, entanglement distillation or Bell tests.
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Computable measure of nonclassicality for light.
TL;DR: The entanglement potential detects nonclassicality, has a direct physical interpretation, and can be computed efficiently, which make it stand out from previously proposed non classicality measures.
References
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Measuring the Quantum State of Light
TL;DR: In this paper, the authors present a method for simultaneous measurement of position and momentum in a simple optical instrument with respect to the quantum theory of light and quasiprobability distribution.
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Measuring the Quantum State of Light
TL;DR: In this paper, the authors present a method for simultaneous measurement of position and momentum in a simple optical instrument with respect to the quantum theory of light and quasiprobability distribution.