4 citations · 6 across the 6 of their papers we have counts for
6 papers
Accelerating Fourier--Motzkin elimination: redundancy removal and the choice of variable elimination order
Shashaank Khanna
Fourier-Motzkin elimination computes an inequality description of the projection of a polyhedron onto a subset of its coordinates by eliminating one variable at a time. It is used…
Spurious quantum correlations
Shashaank Khanna, Matthew F. Pusey, Roger Colbeck
In his seminal paper, Bell [Physics Physique Fizika 1, 195 (1964)] considers the correlations that result from space-like separated measurements on a pair of entangled particles. H…
Closing the problem of which causal structures of up to six total nodes have a classical-quantum gap
Shashaank Khanna, Matthew Pusey, Roger Colbeck
The discovery of Bell that there exist quantum correlations that cannot be reproduced classically is one of the most important in the foundations of quantum mechanics, as well as h…
Comment on a no-go theorem for -ontic models
Laurens Walleghem, Shashaank Khanna, Rutvij Bhavsar
In a recent paper [Carcassi, Oldofredi and Aidala, Found Phys 54, 14 (2024)] it is claimed that the whole Harrigan--Spekkens framework of ontological models is inconsistent with qu…
Classifying Causal Structures: Ascertaining when Classical Correlations are Constrained by Inequalities
Shashaank Khanna, Marina Maciel Ansanelli, Matthew F. Pusey +1
The classical causal relations between a set of variables, some observed and some latent, can induce both equality constraints (typically conditional independences) as well as ineq…
Quantum entanglement percolation under a realistic restriction
Shashaank Khanna, Saronath Halder, Ujjwal Sen
The problem of establishing Bell and Greenberger-Horne-Zeilinger states between faraway places or distant nodes of a circuit is a difficult and an extremely important one, and a st…