Results 1 to 10 of about 3,290 (142)

Hyperfine structure operator in the tensorial form of second quantization

open access: yesOpen Physics, 2004
AbstractThe general tensorial form of the hyperfine interaction operator in the formalism of second quantization is presented. Both diagonal and off-diagnonal matrix elements of the above-mentioned operator are found using an approach based on a combination of second quantization in the coupled tensorial form, angular momentum theory in three spaces ...
Gaigalas Gediminas   +2 more
doaj   +3 more sources

Real-time object detection for unmanned aerial vehicles based on vision transformer and edge computing [PDF]

open access: yesScientific Reports
Existing lightweight Convolutional Neural Network (CNN) detectors deployed on Unmanned Aerial Vehicle (UAV) platforms struggle with small object recognition and fail to capture long-range spatial dependencies, while standard Vision Transformer (ViT ...
Wenyao Zhu, Ken Chen
doaj   +2 more sources

Majorana Mass Term of Majorana Spinors

open access: yesPhysical Sciences Forum, 2023
We have proven that, under the standard charge conjugation approach, the Majorana mass term in QFT must vanish. We have derived formulas for the Majorana spinor field operator without any assumptions about the second quantization procedure. The fact that
Vadim Monakhov
doaj   +1 more source

Switching Quantum Reference Frames for Quantum Measurement [PDF]

open access: yesQuantum, 2020
Physical observation is made relative to a reference frame. A reference frame is essentially a quantum system given the universal validity of quantum mechanics. Thus, a quantum system must be described relative to a quantum reference frame (QRF). Further
Jianhao M. Yang
doaj   +1 more source

On the Spectra of Fermionic Second Quantization Operators [PDF]

open access: yesReports on Mathematical Physics, 2014
We derive several formulae for the spectra of the second quantization operators in abstract fermionic Fock spaces.
Futakuchi, Shinichiro, Usui, Kouta
openaire   +4 more sources

Singular Values of Weighted Composition Operators and Second Quantization [PDF]

open access: yesInternational Mathematics Research Notices, 2017
15 ...
Putinar M, Tener J
openaire   +3 more sources

Cancer Identification in Walker 256 Tumor Model Exploring Texture Properties Taken from Microphotograph of Rats Liver

open access: yesAlgorithms, 2022
Recent studies have been evaluating the presence of patterns associated with the occurrence of cancer in different types of tissue present in the individual affected by the disease.
Mateus F. T. Carvalho   +6 more
doaj   +1 more source

A note on Haag duality

open access: yesNuclear Physics B, 2022
Haag duality is a remarkable property in QFT stating that the commutant of the algebra of observables localized in some region of spacetime is exactly the algebra associated to the causally disconnected region.
Alan Garbarz, Gabriel Palau
doaj   +1 more source

General relativity as a fully singular Lagrange system

open access: yesResults in Physics, 2020
Based on properties of six special gauge-fixing terms of tetrad, some coordinate conditions are presented, which lead to that all second time derivative terms of tetrad in Einstein equation are removed when general relativity is expressed by tetrad ...
Tao Mei
doaj   +1 more source

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