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Anomalous dynamic back-action in interferometers
Sergey P. Tarabrin, Henning Kaufer, Farid Ya. Khalili +2
We analyze the dynamic optomechanical back-action in signal-recycled Michelson and Michelson-Sagnac interferometers that are operated off dark port. We show that in this case --- a…
Quantum-Dense Metrology
Sebastian Steinlechner, Jöran Bauchrowitz, Melanie Meinders +3
Quantum metrology utilizes entanglement for improving the sensitivity of measurements. Up to now the focus has been on the measurement of just one out of two non-commuting observab…
Observation of one-way Einstein-Podolsky-Rosen steering
Vitus Händchen, Tobias Eberle, Sebastian Steinlechner +4
The distinctive non-classical features of quantum physics were first discussed in the seminal paper by A. Einstein, B. Podolsky and N. Rosen (EPR) in 1935. In his immediate respons…
A graphical description of optical parametric generation of squeezed states of light
Joeran Bauchrowitz, Tobias Westphal, Roman Schnabel
The standard process for the production of strongly squeezed states of light is optical parametric amplification (OPA) below threshold in dielectric media such as LiNbO3 or periodi…
Tomographic readout of an opto-mechanical interferometer
Henning Kaufer, Andreas Sawadsky, Tobias Westphal +2
The quantum state of light changes its nature when being reflected off a mechanical oscillator due to the latter's susceptibility to radiation pressure. As a result, a coherent sta…
Continuous-wave non-classical light with GHz squeezing bandwidth
Stefan Ast, Aiko Samblowski, Moritz Mehmet +3
Squeezed states can be employed for entanglement-based continuous-variable quantum key distribution, where the secure key rate is proportional to the bandwidth of the squeezing. We…