Results 81 to 90 of about 1,082 (220)

Spin-charge separation for paired Dirac fermions in (1 + 1) dimensions

Journal of High Energy Physics
We study Dirac fermions at finite density coupled to a complex pairing field assumed to obey scalar field theory with quartic self-repulsion. The bulk of our work develops the mathematics that elucidates the propagation of fermionic excitations in such ...
Laith H. Haddad
doaj   +1 more source

Lignin as a Renewable Precursor for Carbon Quantum Dots: Synthesis, Doping Strategies, and Applications

Advanced Energy and Sustainability Research, Volume 6, Issue 12, December 2025.
Lignin‐derived carbon quantum dots are produced via hydrothermal doping with ethylenediamine, enhancing fluorescence, quantum yield, and tunable photoluminescence for diverse applications. These biocompatible nanomaterials enable safe use in bioimaging, sensing, and monitoring, offering optical stability under various conditions. Valorizing lignin from
Rosinaldo Rabelo Aparício, Fabricio Augusto Hansel, Tawani Lorena Naide Acosta, Marco Antônio Schiavon, Graciela Ines Bolzon de Muniz, Washington Luiz Esteves Magalhães, Pedro Henrique Gonzalez de Cademartori   +6 more
wiley   +1 more source

The instanton liquid and the axion [PDF]

, 2010
The ultimate goal of this thesis is to improve our understanding of the cosmology of axions. Axions couple to QCD instantons and these non-perturbative effects are modeled within the framework of the interacting instanton liquid model (IILM).

core   +2 more sources

Threshold resummation for semi-inclusive single-hadron production with effective field theory

Journal of High Energy Physics
Large double-logarithmic corrections are induced by soft gluon emissions near threshold in the semi-inclusive e + e − annihilation (SIA) distributions, and must be resummed to all-orders in perturbation theory for reliable theoretical predictions ...
Zhen Xu, Hua Xing Zhu
doaj   +1 more source

A Superalgebra Within: Representations of Lightest Standard Model Particles Form a Z25$\mathbb {Z}_2^5$‐Graded Algebra

Annalen der Physik, Volume 537, Issue 12, December 2025.
 A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley   +1 more source

A new analytic approach to physical observables in QCD [PDF]

, 2002
An analytic ghost-free model for the QCD running coupling a(Q(^2)) is proposed. It is constructed from a more general approach we developed particularly for investigating physical observables of the type F(Q(^2)) in regions that are inaccessible to ...
Gaddah, Wajdi Abdal Aziz
core  

Nuclear Physics in the Era of Quantum Computing and Quantum Machine Learning

Advanced Quantum Technologies, Volume 8, Issue 12, December 2025.
The use of QML in the realm of nuclear physics at low energy is almost nonexistent. Three examples of the use of quantum computing and quantum machine in nuclear physics are presented: the determination of the phase/shape in nuclear models, the calculation of the ground state energy, and the identification of particles in nuclear physics experiments ...
José‐Enrique García‐Ramos, Álvaro Sáiz, José M. Arias, Lucas Lamata, Pedro Pérez‐Fernández   +4 more
wiley   +1 more source

Precision QCD and effective field theories with machine learning

, 2022
The Standard Model (SM) serves as one the best descriptions of fundamental physics we have and the quest for its falsification has led to it being tested to an unprecedented degree. Despite its flawless performance, there are many theoretical and phenomenological indications that the SM cannot be a complete description of nature; though, so far, no ...
openaire   +1 more source

Large distance expansion in the Schrödinger representation of quantum field theory [PDF]

, 1997
This thesis is concerned with an approach to Quantum Field Theory in which the states are constructed from their large distance behaviour. The logarithm of the vacuum functional is expandable as a local quantity in any quantum field theory in which the ...
Sampaio, Marcos Donizeti Rodrigues, Rodrigues Sampaio, M.D.   +1 more
core  

Superconducting multi-vortices and a novel BPS bound in chiral perturbation theory

Journal of High Energy Physics
We derive a novel BPS bound from chiral perturbation theory minimally coupled to electrodynamics at finite isospin chemical potential. At a critical value of the isospin chemical potential, a system of three first-order differential field equations ...
Fabrizio Canfora, Marcela Lagos, Aldo Vera   +2 more
doaj   +1 more source