46 citations · 69 across the 7 of their papers we have counts for
7 papers
Challenges for extensions of the process matrix formalism to quantum field theory
Nikola Paunkovic, Marko Vojinovic
We discuss the issues with tentative generalisations of the process matrix formalism from finite-dimensional mechanical systems all the way to quantum field theory. We present a de…
Equivalence Principle in Classical and Quantum Gravity
Nikola Paunkovic, Marko Vojinovic
We give a general overview of various flavors of the equivalence principle in classical and quantum physics, with special emphasis on the so-called weak equivalence principle, and…
Operational interpretation of the vacuum and process matrices for identical particles
Ricardo Faleiro, Nikola Paunkovic, Marko Vojinovic
This work overviews the single-particle two-way communication protocol recently introduced by del Santo and Dakić (dSD), and analyses it using the process matrix formalism. We give…
Causal orders, quantum circuits and spacetime: distinguishing between definite and superposed causal orders
Nikola Paunkovic, Marko Vojinovic
We study the notion of causal orders for the cases of (classical and quantum) circuits and spacetime events. We show that every circuit can be immersed into a classical spacetime,…
Entanglement-induced deviation from the geodesic motion in quantum gravity
Francisco Pipa, Nikola Paunkovic, Marko Vojinovic
We study the derivation of the effective equation of motion for a pointlike particle in the framework of quantum gravity. Just like the geodesic motion of a classical particle is a…
Gauge protected entanglement between gravity and matter
Nikola Paunkovic, Marko Vojinovic
We show that gravity and matter fields are generically entangled, as a consequence of the local Poincaré symmetry. First, we present a general argument, applicable to any particula…
Gravity-Matter Entanglement in Regge Quantum Gravity
Nikola Paunković, Marko Vojinović
We argue that Hartle-Hawking states in the Regge quantum gravity model generically contain non-trivial entanglement between gravity and matter fields. Generic impossibility to talk…