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12 papers · 2 filters
Comparing the degrees of incompatibility inherent in probabilistic physical theories
Paul Busch, Teiko Heinosaari, Jussi Schultz +1
We introduce a new way of quantifying the degrees of incompatibility of two ob- servables in a probabilistic physical theory and, based on this, a global measure of the degree of i…
Entanglement Reactivation in Separable Environments
Stefano Pirandola
Combining two entanglement-breaking channels into a correlated-noise environment restores the distribution of entanglement. Surprisingly, this reactivation can be induced by the in…
Covariance matrices under Bell-like detections
Gaetana Spedalieri, Carlo Ottaviani, Stefano Pirandola
We derive a simple formula for the transformation of an arbitrary covariance matrix of (n+2) bosonic modes under general Bell-like detections, where the last two modes are combined…
Interaction of electron vortices and optical vortices with matter and processes of orbital angular momentum exchange
S. M. Lloyd, M. Babiker, J. Yuan
The quantum processes involved in the interaction of matter with, separately, an electron vortex(EV) and an optical vortex (OV) are described, with matter modelled in terms of a ne…
Symmetric M-ary phase discrimination using quantum-optical probe states
Ranjith Nair, Brent J. Yen, Saikat Guha +2
We present a theoretical study of minimum error probability discrimination, using quantum- optical probe states, of M optical phase shifts situated symmetrically on the unit circle…
Nonlinear nanomechanical resonators for quantum optoelectromechanics
S. Rips, I. Wilson-Rae, M. J. Hartmann
We present a scheme for tuning and controlling nano mechanical resonators by subjecting them to electrostatic gradient fields, provided by nearby tip electrodes. We show that this…