Results 41 to 50 of about 49,504 (245)
Effective line elements and black-hole models in canonical loop quantum gravity [PDF]
Physical Review D, 2018 Canonical quantization is often used to suggest new effects in quantum gravity, in the dynamics as well as the structure of space-time. Usually, possible phenomena are first seen in a modified version of the classical dynamics, for instance in an ...
M. Bojowald +2 more
semanticscholar +1 more source
Three-dimensional canonical quantum gravity [PDF]
Classical and Quantum Gravity, 1995 General aspects of vielbein representation, ADM formulation and canonical quantization of gravity are reviewed using pure gravity in three dimensions as a toy model. The classical part focusses on the role of observers in general relativity, which will later be identified with quantum observers.
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Quantum Cauchy surfaces in canonical quantum gravity [PDF]
Classical and Quantum Gravity, 2016 For a Dirac theory of quantum gravity obtained from the refined algebraic quantization procedure, we propose a quantum notion of Cauchy surfaces. In such a theory, there is a kernel projector for the quantized scalar and momentum constraints, which maps the kinematic Hilbert space $\mathbb K$ into the physical Hilbert space $\mathbb H$.
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Midisuperspace Models of Canonical Quantum Gravity [PDF]
International Journal of Theoretical Physics, 1999 29 pages, RevTex, contribution to "Quantum Gravity in the Southern Cone II", Bariloche, Argentina, January 6-10 ...
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Canonical structure of general relativity with a limiting curvature and its relation to loop quantum gravity [PDF]
, 2017 Chamseddine and Mukhanov recently proposed a modified version of general relativity that implements the idea of a limiting curvature. In the spatially flat, homogeneous, and isotropic sector, their theory turns out to agree with the effective dynamics of
N. Bodendorfer +2 more
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Programmable Nanoscale Motion via Molecular Patterning on DNA Origami
Angewandte Chemie, EarlyView.DNA origami nanorods enable precise urease placement with tunable coverage and asymmetry, revealing that propulsion depends on a balance of catalytic loading and geometry. Maximum speed occurs at ∼25% end‐coverage and declines as enzyme distribution becomes more symmetrical.
Lars Paffen +6 more
wiley +2 more sources
On the modification of the cosmic microwave background anisotropy spectrum from canonical quantum gravity [PDF]
, 2013 We evaluate the modifications to the cosmic microwave background anisotropy spectrum that result from a semiclassical expansion of the Wheeler-DeWitt equation. Recently, such an investigation in the case of a real scalar field coupled to gravity, has led
D. Bini +4 more
semanticscholar +1 more source
Which Quantum Theory Must be Reconciled with Gravity? (And What Does it Mean for Black Holes?)
Universe, 2016 We consider the nature of quantum properties in non-relativistic quantum mechanics (QM) and relativistic quantum field theories, and examine the connection between formal quantization schemes and intuitive notions of wave-particle duality.
Matthew J. Lake
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Cauchy slice holography: a new AdS/CFT dictionary
Journal of High Energy Physics, 2023 We investigate a new approach to holography in asymptotically AdS spacetimes, in which time rather than space is the emergent dimension. By making a sufficiently large T 2-deformation of a Euclidean CFT, we define a holographic theory that lives on ...
Goncalo Araujo-Regado +2 more
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An Overview of Canonical Quantum Gravity [PDF]
International Journal of Theoretical Physics, 1999 6 pages, RevTeX, no ...
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