5 papers · 1 filter
Correlations and signaling in the Schrödinger-Newton model
Jacek Aleksander Gruca, Ankit Kumar, Ray Ganardi +3
The Schrödinger--Newton model is a semi-classical theory in which, in addition to mutual attraction, massive quantum particles interact with their own gravitational fields. While t…
Quantitative non-classicality of mediated interactions
Ray Ganardi, Ekta Panwar, Mahasweta Pandit +2
In plethora of physical situations one can distinguish a mediator -- a system that couples other, non-interacting systems. Often the mediator itself is not directly accessible to e…
Generalised uncertainty relations from superpositions of geometries
Matthew J. Lake, Marek Miller, Ray F. Ganardi +3
Phenomenological approaches to quantum gravity implement a minimum resolvable length-scale but do not link it to an underlying formalism describing geometric superpositions. Here,…
Entanglement gain in measurements with unknown results
Margherita Zuppardo, Ray Ganardi, Marek Miller +2
We characterise non-selective global projective measurements capable of increasing quantum entanglement between two particles. We show that non-selective global projective measurem…
Detecting non-decomposability of time evolution via extreme gain of correlations
Tanjung Krisnanda, Ray Ganardi, Su-Yong Lee +2
Non-commutativity is one of the most elementary non-classical features of quantum observables. Here we propose a method to detect non-commutativity of interaction Hamiltonians of t…