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Journal Article

Two-color bright squeezed vacuum

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/persons/resource/persons201034

Chekhova,  Maria V.
Quantum Radiation, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;
Chekhova Research Group, Research Groups, Max Planck Institute for the Science of Light, Max Planck Society;
Optical Technologies, Technology Development and Service Units, Max Planck Institute for the Science of Light, Max Planck Society;

/persons/resource/persons201115

Leuchs,  Gerd
Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

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Citation

Agafonov, I. N., Chekhova, M. V., & Leuchs, G. (2010). Two-color bright squeezed vacuum. PHYSICAL REVIEW A, 82(1): 011801. doi:10.1103/PhysRevA.82.011801.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6ADB-9
Abstract
In a strongly pumped nondegenerate traveling-wave optical parametric amplifier, we produce a two-color squeezed vacuum with up to millions of photons per pulse. Our approach to registering this macroscopic quantum state is direct detection of a large number of transverse and longitudinal modes, which is achieved by making the detection time and area much larger than the coherence time and area, respectively. Using this approach, we obtain a record value of twin-beam squeezing for direct detection of bright squeezed vacuum. This makes direct detection of macroscopic squeezed vacuum a practical tool for quantum information applications.