J ul 2 00 7 Quantum engineering of squeezed states for quantum communication and metrology

  title={J ul 2 00 7 Quantum engineering of squeezed states for quantum communication and metrology},
  author={Henning Vahlbruch and Simon Chelkowski and Karsten Danzmann and Roman Schnabel},
We report the experimental realization of squeezed quantumstates 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 fo r the first time. Nonclassical properties of light in such a low frequency band isrequired for high efficiency quantum information storage in electromagnetically induced transparency (EIT) media. The states observed also cover the frequency band of ultra-h igh precision… CONTINUE READING
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