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Gravity and the Quantum: Are they Reconcilable?
General relativity and quantum mechanics are conflicting theories. The seeds of discord are the fundamental principles on which these theories are grounded.
Aldrovandi, R.+2 more
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On the Precision of a Length Measurement [PDF]
We show that quantum mechanics and general relativity imply the existence of a minimal length. To be more precise, we show that no operational device subject to quantum mechanics, general relativity and causality could exclude the discreteness of ...
C.A. Mead+24 more
core +3 more sources
On the Inaccessibility of Time Machines
We will explain why time machines, although allowed in General Relativity, cannot be accessed by observers once we include quantum effects. Moreover, we will show that traversable wormholes cannot be turned into time machines without invoking the effects
Marija Tomašević
doaj +1 more source
Why we need to quantise everything, including gravity
Why we need to quantise everything, including gravity Quantum gravity—the theory that will merge quantum theory and general relativity—is yet to be found.
C. Marletto, V. Vedral
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Studies of general relativity with quantum sensors
We present two projects aiming to probe key aspects of the theory of General Relativity with high-precision quantum sensors. These projects use cold-atom interferometry with the aim of measuring gravitational waves and testing the equivalence principle.
Lefevre, G.+17 more
openaire +4 more sources
General relativistic effects in quantum interference of photons
Quantum mechanics and general relativity have been extensively and independently confirmed in many experiments. However, the interplay of the two theories has never been tested: all experiments that measured the influence of gravity on quantum systems ...
Brukner, Caslav+4 more
core +1 more source
Entanglement decoherence in a gravitational well according to the event formalism
The event formalism is a nonlinear extension of quantum field theory designed to be compatible with the closed time-like curves that appear in general relativity.
T C Ralph, J Pienaar
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On the assumptions leading to the information loss paradox
The information loss paradox is usually stated as an incompatibility between general relativity and quantum mechanics. However, the assumptions leading to the problem are often overlooked and, in fact, a careful inspection of the main hypothesises ...
Luca Buoninfante+2 more
doaj +1 more source
Quantum Gravity from General Relativity [PDF]
Although general relativity is a predictively successful theory, it treats matter as classical rather than as quantum. For this reason, it will have to be replaced by a more fundamental quantum theory of gravity. Attempts to formulate a quantum theory of gravity suggest that such a theory may have radical consequences for the nature, and indeed the ...
openaire +2 more sources
On Firewalls in quantum-corrected General Relativity [PDF]
Abstract We consider the information loss paradox at different angles, from the standard semi-classical approximation of General Relativity to the recently proposed scenarios of black holes evolution caused by effects of gravity quantization.
Alexei J. Nurmagambetov, I. Y. Park
openaire +3 more sources