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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 verification of the existence of a spacetime manifold
Nikola Paunkovic, Marko Vojinovic
We argue that there exists an operational way to establish the observability of the notions of space and time. Specifically, we propose a theory-independent protocol for a gedanken…
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…