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  Quantum engineering of squeezed states for quantum communication and metrology

Vahlbruch, H., Chelkowski, S., Danzmann, K., & Schnabel, R. (2007). Quantum engineering of squeezed states for quantum communication and metrology. New Journal of Physics, 9, 371. doi:10.1088/1367-2630/9/10/371.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-47CC-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-47CD-D
Genre: Journal Article

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 Creators:
Vahlbruch, Henning1, Author              
Chelkowski, Simon1, 2, Author
Danzmann, Karsten1, Author              
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              
2AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24009              

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 Abstract: We report the experimental realization of squeezed quantum states of light, tailored for new applications in quantum communication and metrology. Squeezed states in a broad Fourier frequency band down to 1 Hz has been observed for the first time. Nonclassical properties of light in such a low frequency band is required for high efficiency quantum information storage in electromagnetically induced transparency (EIT) media. The states observed also cover the frequency band of ultra-high precision laser interferometers for gravitational wave detection and can be used to reach the regime of quantum non-demolition interferometry. And furthermore, they cover the frequencies of motions of heavily macroscopic objects and might therefore support the attempts to observe entanglement in our macroscopic world.

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Language(s): eng - English
 Dates: 2007-10
 Publication Status: Published in print
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 Identifiers: eDoc: 318086
DOI: 10.1088/1367-2630/9/10/371
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Title: New Journal of Physics
Source Genre: Journal
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Pages: - Volume / Issue: 9 Sequence Number: - Start / End Page: 371 Identifier: -