Quantum formulation of the Einstein equivalence principle

Decoherence–induced violations of Einstein equivalence principle

In this essay it will be shown that Decoherence Model and Einstein Equivalence Principle are conceptually incompatible. In other words, assuming only the validity of the Weak Equivalence Principle the present work concludes that we face two possibilities: (i) if Decoherence Model provides a correct description of nature at quantum level, then there are systems which violate Local Position Invar...

Equivalence 5 What was Einstein ' s principle of Equivalence ?

Quantum Equivalence Principle

A simple mapping procedure is presented by which classical orbits and path integrals for the motion of a point particle in flat space can be transformed directly into those in curved space with torsion. Our procedure evolved from well-established methods in the theory of plastic deformations, where crystals with defects are described mathematically as images of ideal crystals under active nonho...

On the Equivalence Principle of Quantum Mechanics

A recent concept in theoretical physics, motivated in string duality and M–theory, is the notion that not all quantum theories arise from quantising a classical system. Also, a given quantum model may possess more than just one classical limit. In view of these developments, we analyse some general properties that quantum mechanics must satisfy, if it is not to be formulated as a quantisation o...

Einstein-Planck Formula, Equivalence Principle and Black Hole Radiance

The presence of gravity implies corrections to the Einstein-Planck formula E = hν. This gives hope that the divergent blueshift in frequency, associated to the presence of a black hole horizon, could be smoothed out for the energy. Using simple arguments based on Einstein’s equivalence principle we show that this is only possible if a black hole emits, in first approximation, not just a single ...