（レーザー関連）Quantum noise squeezing with Koheras lasers

The Nonlinear Quantum Optics group at the University of Hamburg has been working with Koheras BOOSTIK lasers to make squeeze lasers for quantum noise squeezing.

Quantum-squeezed laser light shows less noise in the statistics of the detected photons than shot noise, even though shot noise represents the lowest noise of all conventional lasers.

What the group calls a “squeeze laser” can establish correlations between detected photons. These so-called quantum correlations can be used to:

improve ultra-sensitive measurements beyond what is possible with conventional ultra-stable laser light
raise the security of quantum key distribution to a new level
build optical quantum computers