Results 41 to 50 of about 1,164 (183)

Micro-canonical and canonical description for generalised entropy

open access: yesPhysics Letters B, 2023
Few parameters dependent generalised entropy includes Tsallis entropy, Rényi entropy, Sharma-Mittal entropy, Barrow entropy, Kaniadakis entropy, etc as particular representatives. Its relation to physical systems is not always clear.
Shin'ichi Nojiri, Sergei D. Odintsov
doaj   +1 more source

Canonical quantum gravity and consistent discretizations [PDF]

open access: yesPramana, 2004
This is a summary of the talk presented by JP at ICGC2004. It covered some developments in canonical quantum gravity occurred since ICGC2000, emphasizing the recently introduced consistent discretizations of general relativity.
Gambini, Rodolfo, Pullin, Jorge
openaire   +2 more sources

Semi‐autonomous Navigation of Magnetic Microcarriers for Knee Cartilage Regeneration

open access: yesAdvanced Intelligent Systems, EarlyView.
Autonomous navigation of magnetic microcarriers in complex 3D environments is investigated through a semi‐autonomous strategy integrating magnetic actuation with monocular visual feedback. Real‐time global tracking is achieved via radio‐frequency‐based localization and depth estimation, while model‐based computation determines optimal steering forces ...
Kim Tien Nguyen   +3 more
wiley   +1 more source

On Conformally Coupled General Relativity

open access: yesEPJ Web of Conferences, 2018
A gravity model based on the conformal symmetry is presented. To specify the structure of the general coordinate transformations the Ogievetsky theorem is applied. The nonlinear symmetry realization approach is used.
Arbuzov Andrej, Latosh Boris
doaj   +1 more source

Quantum de Sitter horizon entropy from quasicanonical bulk, edge, sphere and topological string partition functions

open access: yesJournal of High Energy Physics, 2022
Motivated by the prospect of constraining microscopic models, we calculate the exact one-loop corrected de Sitter entropy (the logarithm of the sphere partition function) for every effective field theory of quantum gravity, with particles in arbitrary ...
Dionysios Anninos   +3 more
doaj   +1 more source

Fermion coupling to loop quantum gravity: Canonical formulation

open access: yesPhysical Review D, 2022
23+4 pages, 3 figures.
Jerzy Lewandowski, Cong Zhang
openaire   +2 more sources

Universal Entanglement and an Information‐Complete Quantum Theory

open access: yesAdvanced Physics Research, EarlyView.
This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley   +1 more source

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

open access: yesSystems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Applications of Canonical Quantum Gravity to Cosmology [PDF]

open access: yesSymmetry, 2019
We applied quantum gravitational results to spatially unbounded Friedmann universes and tried to answer some questions related to dark energy, dark matter, inflation, and the missing antimatter.
openaire   +2 more sources

Insights into the catalytic mechanism of formate dehydrogenases from different microbial sources

open access: yesThe FEBS Journal, EarlyView.
This integrated study combines experimental enzyme kinetics with QM/MM simulations to map the catalytic mechanisms of four formate dehydrogenases at the atomic level. This approach reveals the key determinants of catalytic efficiency and guides the rational design of biocatalysts for effective CO2 reduction—a crucial step towards sustainable ...
Laura Legnani   +8 more
wiley   +1 more source

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