Results 21 to 30 of about 11,377,426 (260)
Clocks without “Time” in Entangled-State Experiments
Entangled states of light exhibit measurable correlations between light detections at separated locations. These correlations are exploited in entangled-state quantum key distribution.
F. Hadi Madjid, John M. Myers
doaj +1 more source
Unconventional reconciliation path for quantum mechanics and general relativity
Physics in general is successfully governed by quantum mechanics at the microscale and principles of relativity at the macroscale. Any attempts to unify them using conventional methods have somewhat remained elusive for nearly a century up to the present
Samuel Polopa Yuguru
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Why Einstein did not believe that General Relativity geometrizes gravity [PDF]
I argue that, contrary to folklore, Einstein never really cared for geometrizing the gravitational or (subsequently) the electromagnetic field; indeed, he thought that the very statement that General Relativity geometrizes gravity "is not saying anything
Lehmkuhl, D, Lehmkuhl, Dennis
core +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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Constraints on Gravitation from Causality and Quantum Consistency
We examine the role of consistency with causality and quantum mechanics in determining the properties of gravitation. We begin by examining two different classes of interacting theories of massless spin 2 particles—gravitons.
Mark P. Hertzberg
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No presentism in quantum gravity [PDF]
This essay offers a reaction to the recent resurgence of presentism in the philosophy of time. What is of particular interest in this renaissance is that a number of recent arguments supporting presentism are crafted in an untypically naturalistic vein ...
Christian Wüthrich, Wuthrich, Christian
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Smaller is better: nanobodies meet NMR
Nanobodies are single‐domain antigen‐binding fragments derived from camelid heavy chain antibodies. Their small size, high stability, and exceptional specificity make nanobodies uniquely useful probes for NMR studies of protein dynamics, transient conformational states, and protein–protein interactions.
Oleg Y. Dmitriev
wiley +1 more source
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
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Heterotropic regulation and negative homotropic cooperativity
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea +5 more
wiley +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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