Results 91 to 100 of about 49,504 (245)
Propagating spin modes in canonical quantum gravity [PDF]
Physical Review D, 1999 One of the main results in canonical quantum gravity is the introduction of spin network states as a basis on the space of kinematical states. To arrive at the physical state space of the theory though we need to understand the dynamics of the quantum gravitational states. To this aim we study a model in which we allow for the spins, labeling the edges
Borissov, Roumen, Gupta, Sameer
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The simplicity of physical laws
Noûs, Volume 59, Issue 4, Page 957-987, December 2025.Abstract Physical laws are strikingly simple, yet there is no a priori reason for them to be so. I propose that nomic realists—Humeans and non‐Humeans—should recognize simplicity as a fundamental epistemic guide for discovering and evaluating candidate physical laws.
Eddy Keming Chen
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Quantum-Wave Equation and Heisenberg Inequalities of Covariant Quantum Gravity
Entropy, 2017 Key aspects of the manifestly-covariant theory of quantum gravity (Cremaschini and Tessarotto 2015–2017) are investigated. These refer, first, to the establishment of the four-scalar, manifestly-covariant evolution quantum wave equation, denoted as ...
Claudio Cremaschini, Massimo Tessarotto
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Advanced NanoBiomed Research, Volume 5, Issue 11, November 2025.A combined emulsion–core‐shell structure system is developed for targeted delivery of lipophilic compounds to the proximal intestine. Using vitamin D3‐loaded sunflower oil emulsions, the core‐shell structure enhances droplet stability, encapsulation efficiency, and gastric protection.
Fariba Malekpour Galogahi +3 more
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Quantum null geometry and gravity [PDF]
Journal of High Energy PhysicsIn this work, we demonstrate that quantizing gravity on a null hypersurface leads to the emergence of a CFT associated with each null ray. This result stems from the ultralocal nature of null physics and is derived through a canonical analysis of the ...
Luca Ciambelli +2 more
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Recursive Relations for the S‐matrix of Liouville Theory
Fortschritte der Physik, Volume 73, Issue 11, November 2025.Abstract The relation between the vertex operators of the in and out fields in Liouville theory is analyzed. This is used to derive equations for the S‐matrix, from which a recursive relation for the normal symbol of the S‐matrix for discrete center‐of‐mass momenta is obtained.
George Jorjadze +2 more
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Learning about Quantum Gravity with a Couple of Nodes
Symmetry, Integrability and Geometry: Methods and Applications, 2012 Loop Quantum Gravity provides a natural truncation of the infinite degrees of freedom of gravity, obtained by studying the theory on a given finite graph. We review this procedure and we present the construction of the canonical theory on a simple graph,
Enrique F. Borja +2 more
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Entropic Forces and Newton’s Gravitation
Entropy, 2020 Our subject of interest here is entropic forces, as re-interpreted by Verlinde with reference to gravitation, that is, by appealing to Verlinde’s conception of an entropic (statistically emergent) gravity advanced in [Physica A 2018, 511, 139].
Angelo Plastino, Mario Carlos Rocca
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Recent developments in canonical quantum gravity [PDF]
AIP Conference Proceedings, 1995 We give a summary of the nonperturbative approach to quantum gravity based on Ashtekar’s new variables and loop quantization, intended for a general audience of physicists. We discuss the possible connections of this approach with other areas of physics and the basic ideas of quantizing the gravitational field.
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Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future
Advanced Intelligent Systems, Volume 7, Issue 10, October 2025.Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
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