Results 101 to 110 of about 417,302 (266)

Explicit Symmetry Breaking of Generalized Angular Momentum by Second‐Harmonic Generation in Underdense Plasmas

open access: yesLaser &Photonics Reviews, Volume 19, Issue 6, March 18, 2025.
The conservation law of the generalized angular momentum (GAM) of light is investigated through second‐harmonic generation in inhomogeneous plasmas. The study reveals that the symmetry and topological properties of the GAM state are broken with such a nonlinear process that relies on quadrupolar interaction. Importantly, this symmetry breaking offers a
Alexis Voisine   +5 more
wiley   +1 more source

Canonical quantization of cylindrical gravitational waves with two polarizations [PDF]

open access: yes, 1997
The canonical quantization of the minisuperspace model describing cylindrically symmetric gravitational waves with two polarizations is presented. A Fock space-type representation is constructed.
D. Korotkin, Henning Samtleben
semanticscholar   +1 more source

Canonical quantization of massive symmetric rank-two tensor in string theory

open access: yesNuclear Physics B, 2020
The canonical quantization of a massive symmetric rank-two tensor in string theory, which contains two Stueckelberg fields, was studied. As a preliminary study, we performed a canonical quantization of the Proca model to describe a massive vector ...
Hayun Park, Taejin Lee
doaj  

Iterative Quantization: A Procrustean Approach to Learning Binary Codes for Large-Scale Image Retrieval

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2013
This paper addresses the problem of learning similarity-preserving binary codes for efficient similarity search in large-scale image collections. We formulate this problem in terms of finding a rotation of zero-centered data so as to minimize the ...
Yunchao Gong   +3 more
semanticscholar   +1 more source

Lessons from discrete light-cone quantization for physics at null infinity: bosons in two dimensions

open access: yesJournal of High Energy Physics
Motivated by issues in the context of asymptotically flat spacetimes at null infinity, we discuss in the simplest example of a free massless scalar field in two dimensions several subtleties that arise when setting up the canonical formulation on a ...
Glenn Barnich   +3 more
doaj   +1 more source

Learning about Quantum Gravity with a Couple of Nodes

open access: yesSymmetry, 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
doaj   +1 more source

Canonical quantization of photons in a Rindler wedge [PDF]

open access: yesJournal of Mathematical Physics, 1997
Photons and thermal photons are studied in the Rindler wedge employing Feynman’s gauge and canonical quantization. A Gupta–Bleuler-like formalism is explicitly implemented. Nonthermal Wightman functions and related (Euclidean and Lorentzian) Green functions are explicitly calculated and their complex time analytic structure is carefully analyzed using ...
openaire   +4 more sources

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

Canonical quantization of superconducting circuits

open access: yes, 2021
Los circuitos superconductores han surgido como una de las implementaciones físicas más prometedorasen tecnologías cuánticas, fusionando la física, la ingeniería y las matemáticas. Esta tesis expone modeloshamiltonianos matemáticamente consistentes y precisos para describir redes superconductoras idealesformadas por un número arbitrario de elementos ...
openaire   +1 more source

Constraining the loop quantum gravity parameter space from phenomenology

open access: yesPhysics Letters B, 2018
Development of quantum gravity theories rarely takes inputs from experimental physics. In this letter, we take a small step towards correcting this by establishing a paradigm for incorporating putative quantum corrections, arising from canonical quantum ...
Suddhasattwa Brahma, Michele Ronco
doaj   +1 more source

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