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7 papers · 2 filters
Entanglement-enhanced time-continuous quantum control in optomechanics
Sebastian G. Hofer, Klemens Hammerer
The cavity-optomechanical radiation pressure interaction provides the means to create entanglement between a mechanical oscillator and an electromagnetic field interacting with it.…
Observation of generalized optomechanical coupling and cooling on cavity resonance
Andreas Sawadsky, Henning Kaufer, Ramon Moghadas Nia +4
Optomechanical coupling between a light field and the motion of a cavity mirror via radiation pressure plays an important role for the exploration of macroscopic quantum physics an…
Experimental device-independent verification of quantum steering
Sacha Kocsis, Michael J. W. Hall, Adam J. Bennet +2
Bell nonlocality between distant quantum systems---i.e., joint correlations which violate a Bell inequality---can be verified without trusting the measurement devices used, nor tho…
Trajectories without quantum uncertainties
Eugene S. Polzik, Klemens Hammerer
A common knowledge suggests that trajectories of particles in quantum mechanics always have quantum uncertainties. These quantum uncertainties set by the Heisenberg uncertainty pri…
Optomechanical sensing of spontaneous wave-function collapse
Stefan Nimmrichter, Klaus Hornberger, Klemens Hammerer
Quantum experiments with nanomechanical oscillators are regarded as a testbed for hypothetical modifications of the Schrödinger equation, which predict a breakdown of the superposi…
Transformations of symmetric multipartite Gaussian states by Gaussian LOCC
Ondřej Černotík, Jaromír Fiurášek
Multipartite quantum correlations, in spite of years of intensive research, still leave many questions unanswered. While bipartite entanglement is relatively well understood for Ga…