QCD factorization and quantum mechanics

It is unusual to find quantum chromodynamics (QCD) factorization explained in the language of quantum information science. However, we will discuss how the issue of factorization and its breaking in high-energy QCD processes relates to phenomena like decoherence and entanglement. We will elaborate with several examples and explain them in terms familiar from basic quantum mechanics and quantum information science. This article is part of the theme issue ‘Quantum technologies in particle physics’.

QCD at the FCC-ee

In this note, we briefly review some theory aspects of Quantum Chromodynamics at the future circular lepton collider (FCC-ee).

JASPER: a software for quantum chromodynamics Dyson-Schwinger equation numerical calculation

The JASPER program is the first part of the high-performance computing information system for estimate some elementary particle properties, developing at Petersburg Nuclear Physics Institute. The JASPER is an implementation of the Dyson-Schwinger equation numerical solution for simple dressed quark propagator calculation in rainbow approximation. The Dyson-Schwinger equation solution with the Marice-Tandy Ansatz is one of several phenomenological approaches to obtain quantitative results in quantum chromodynamics (QCD) within strong coupling regime. The JASPER program is programmed in the C++ language and uses the numerical algorithms from the GNU Scientific Library (GSL). The numerical results for dynamical quark mass in complex Euclidean space were obtained. This result will be employed to study the hadron spectrum with the Bethe-Salpeter equation approach.

The Strong Interactions

For many years strong interactions had a well-deserved reputation for complexity. Their apparent strength rendered perturbation theory inapplicable. However, in the late 1960s a series of experiments studying the deep inelastic electron–nucleon scattering showed that at a more fundamental level, the strong interactions among the constituent quarks can be described perturbatively by an asymptotically free gauge theory. We present the theory of quantum chromodynamics, the unbroken gauge theory of the colour SU(3) group. We show how we can compute its predictions in the kinematic regions in which perturbation theory is applicable, but also in the strong coupling regime through numerical simulations on a space-time lattice.

Gravitational Force is a Type of Physical Interaction between Gluon Fields: Molecular Motions of Gases

This study presents a Gluon Gravity Model, to explain the mechanism of gravity. With the development of quantum chromodynamics since 1970, Newton's law of universal gravitation and Einstein's theory of general relativity need to be reinterpreted. Like an electric charge causes an electric field, the color charges in quantum chromodynamics were introduced into the gravitational field. The gluons mediating strong force can bring about a new color field around the strong force field owing to their color charges. This new color field of charges becomes a gravitational field in Gluon Gravity Model. This model is supported by the facts that most of the atomic mass is composed of the gluon field energy and the similarity between the two formulas of Coulomb's law and Newton's laws of universal gravitation. Additionally, it is possible to explain the gas molecular motions by applying the Gluon Gravity Model to the gluon fields within a proton.

The Critical Relationship Between Quarks and Quantum Chromodynamics.

The objective of this abstract is to perform a systematic review of the critical relationship between quarks and quantum chromodynamics. The topic of this review abstract is the relationship between quarks and quantum chromodynamics. This relationship has been considered and still is considered one of the most groundbreaking connections in particle physics as it has allowed scientists to get a better view at “quarks”, an elementary particle with no substructure. Quantum Chromodynamics expresses and is the theory of strong interaction between quarks and gluons which are fundamental particles making up hadrons such as neutrons and protons. The theory plays a crucial part in the standard model of particle physics. The quantum field theory supporting quantum chromodynamics is a non-abelian gauge theory in which the lagrangian will not undergo change under local transformations. Quarks are one half of the base on which quantum chromodynamics is founded on. Quarks play a crucial role in the functioning of quantum chromodynamics as a whole and as such, affect other physical systems closely related to quantum chromodynamics such as strong interactions, weak interactions, and spin classification. Fully understanding the relation between Quarks and Quantum Chromodynamics will allow us to understand the true roles that quarks play in complex quantum systems.