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16 papers · 2 filters
Quantum noise of a Michelson-Sagnac interferometer with translucent mechanical oscillator
Kazuhiro Yamamoto, Daniel Friedrich, Tobias Westphal +5
Quantum fluctuations in the radiation pressure of light can excite stochastic motions of mechanical oscillators thereby realizing a linear quantum opto-mechanical coupling. When pe…
Two-Color Bright Squeezed Vacuum
Ivan N. Agafonov, Maria V. Chekhova, Gerd Leuchs
In a strongly pumped non-degenerate traveling-wave OPA, we produce two-color squeezed vacuum with up to millions of photons per pulse. Our approach to registering this macroscopic…
Fractional Generalization of Quantum Markovian Master Equation
Vasily E. Tarasov
We prove a generalization of the quantum Markovian equation for observables. In this generalized equation, we use superoperators that are fractional powers of completely dissipativ…
Accessing higher order correlations by time-multiplexing
M. Avenhaus, K. Laiho, M. V. Chekhova +1
We experimentally measured higher order normalized correlation functions (nCF) of pulsed light with a time-multiplexing-detector. We demonstrate excellent performance of our device…
Universal Quantum Entanglement between an Oscillator and Continuous Fields
Haixing Miao, Stefan Danilishin, Yanbei Chen
Quantum entanglement has been actively sought for in optomechanical and electromechanical systems. The simplest such system is a mechanical oscillator interacting with a coherent b…
Experimental estimation of entanglement at the quantum limit
Giorgio Brida, Ivo Degiovanni, Angela Florio +5
Entanglement is the central resource of quantum information processing and the precise characterization of entangled states is a crucial issue for the development of quantum techno…