Results 101 to 110 of about 2,307 (223)
On Quantum Representation of the Linear Canonical Wavelet Transform
, 2022 For the efficient identification of quantum states, we propose the notion of linear canonical wavelet transform in the framework of quantum mechanics.
Teali, Aajaz A. +5 more
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Towards (3+1) gravity through Drinfel'd doubles with cosmological constant
Physics Letters B, 2015 We present the generalisation to (3+1) dimensions of a quantum deformation of the (2+1) (Anti)-de Sitter and Poincaré Lie algebras that is compatible with the conditions imposed by the Chern–Simons formulation of (2+1) gravity.
Angel Ballesteros +2 more
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A Lorentz-Covariant Connection for Canonical Gravity
Symmetry, Integrability and Geometry: Methods and Applications, 2011 We construct a Lorentz-covariant connection in the context of first order canonical gravity with non-vanishing Barbero-Immirzi parameter. To do so, we start with the phase space formulation derived from the canonical analysis of the Holst action in which
Marc Geiller +3 more
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The Genesis of Canonical Quantum Gravity
, 2018 ReferencesFootnotes
Blum, A., Salisbury, D.
openaire +3 more sources
String Theory – Nomological Unification and the Epicycles of the Quantum Field Theory Paradigm [PDF]
, 2011 String Theory is the result of the conjunction of three conceptually independent elements: (i) the metaphysical idea of a nomological unity of the forces, (ii) the model-theoretical paradigm of Quantum Field Theory, and (iii) the conflict resulting from ...
Hedrich, Reiner
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Relational Observables in Gravity: a Review
Symmetry, Integrability and Geometry: Methods and Applications, 2012 We present an overview on relational observables in gravity mainly from a loop quantum gravity perspective. The gauge group of general relativity is the diffeomorphism group of the underlying manifold.
Johannes Tambornino
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The Holst spin foam model via cubulations
New Journal of Physics, 2012 Spin foam models are an attempt at a covariant or path integral formulation of canonical loop quantum gravity. The construction of such models usually relies on the Plebanski formulation of general relativity as a constrained BF theory and is based on ...
Aristide Baratin +2 more
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Emergent spacetime and empirical (in)coherence [PDF]
, 2012 Numerous approaches to a quantum theory of gravity posit fundamental ontologies that exclude spacetime, either partially or wholly. This situation raises deep questions about how such theories could relate to the empirical realm, since arguably only ...
Wuthrich, Christian +2 more
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Symmetric configurations highlighted by collective quantum coherence
European Physical Journal C: Particles and Fields, 2017 Recent developments in quantum gravity have shown the Lorentzian treatment to be a fruitful approach towards the emergence of macroscopic space-times. In this paper, we discuss another related aspect of the Lorentzian treatment: we argue that collective ...
Dennis Obster, Naoki Sasakura
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Take a Ride on a Time Machine [PDF]
, 2003 We discuss the possibility to build and operate a time machine, a device that produces closed timelike curves (CTCs). We specify the spacetime structure needed to implement a time machine and assess attempted no-go results against time machines in ...
Wuthrich, Christian +2 more
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