Results 111 to 120 of about 165,231 (345)

Group field theories

open access: yes, 2011
Group field theories are particular quantum field theories defined on D copies of a group which reproduce spin foam amplitudes on a space-time of dimension D.
Krajewski, Thomas
core   +1 more source

Lorentz breaking Effective Field Theory and observational tests

open access: yes, 2012
Analogue models of gravity have provided an experimentally realizable test field for our ideas on quantum field theory in curved spacetimes but they have also inspired the investigation of possible departures from exact Lorentz invariance at microscopic ...
A. Glushkov   +149 more
core   +1 more source

A Novel Parameter Estimation Method for Pneumatic Soft Hand Control Applying Logarithmic Decrement for Pseudo‐Rigid Body Modeling

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
In this research, a paradigm of parameter estimation method for pneumatic soft hand control is proposed. The method includes the following: 1) sampling harmonic damping waves, 2) applying pseudo‐rigid body modeling and the logarithmic decrement method, and 3) deriving position and force control.
Haiyun Zhang   +4 more
wiley   +1 more source

Conformal dimensions on causal random geometry

open access: yesJournal of High Energy Physics
We investigate the interaction between matter and causal dynamical triangulations (CDT) in the context of two-dimensional quantum gravity. We focus on the Ising model coupled to CDT, contrasting this with Liouville gravity and the relation to the ...
Ryan Barouki, Henry Stubbs, John Wheater
doaj   +1 more source

Three Synchronized, Miniaturized, Wireless Inertial Measurement Unit Sensors for Automated Gait and Balance Analysis System

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a compact, three IMU wearable system that enables accurate motion capture and robust gait‐feature extraction, thereby supporting reliable machine learning‐based balance evaluation. Accurate assessment of balance is critical for fall prevention and targeted rehabilitation, particularly in older adults and individuals with ...
Seok‐Hoon Choi   +8 more
wiley   +1 more source

Finite cut-off JT and Liouville quantum gravities on the disk at one loop

open access: yesJournal of High Energy Physics
Within the path integral formalism, we compute the disk partition functions of two dimensional Liouville and JT quantum gravity theories coupled to a matter CFT of central charge c, with cosmological constant Λ, in the limit c → −∞, |Λ| → ∞, for fixed Λ ...
Soumyadeep Chaudhuri, Frank Ferrari
doaj   +1 more source

Lorentz Invariant phenomenological model of quantum gravity: A minimalistic presentation [PDF]

open access: yesAIP Conference Proceedings, 2012
The purpose of this paper is to give a minimalistic and self-contained presentation of a Lorentz Invariant phenomenological model of Quantum Gravity.
openaire   +2 more sources

Quantum spacetime and the renormalization group: Progress and visions

open access: yes, 2019
The quest for a consistent theory which describes the quantum microstructure of spacetime seems to require some departure from the paradigms that have been followed in the construction of quantum theories for the other fundamental interactions.
D Oriti   +4 more
core   +1 more source

Autonomous Robotic Colonoscopy: A Supervised Learning Approach for Enhanced Navigation and Collision Detection

open access: yesAdvanced Intelligent Systems, EarlyView.
A novel autonomous robotic colonoscopy is introduced through supervised learning approaches. The proposed system consists of 3 degrees of freedom motorized colonoscope with an integrated navigation module that can infer a target steering point and collision probability.
Bohyun Hwang   +3 more
wiley   +1 more source

Gravitational wavefunctions in JT supergravity

open access: yesJournal of High Energy Physics
We determine explicit expressions for the continuous two-sided gravitational wavefunctions in supersymmetric versions of JT gravity, focusing mainly on N $$ \mathcal{N} $$ = 2 JT supergravity.
Andreas Belaey   +2 more
doaj   +1 more source

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