scholarly journals Particle Creation and Annihilation: Two Bohmian Approaches

2018 ◽  
Vol 5 (1) ◽  
pp. 77-85 ◽  
Author(s):  
Andrea Oldofredi
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Quantum Physics ◽  
Particle Creation ◽  
Bohmian Mechanics ◽  
Quantum Field ◽  
Technical Problems ◽  
Dirac Sea ◽  
Theory Of Fields ◽  
Particle Creation And Annihilation

This paper reviews and discusses two extensions of Bohmian Mechanics to the phenomena of particle creation and annihilation typically observed in Quantum Field Theory (QFT): the so-called Bell-type Quantum Field Theory and the Dirac Sea representation. These theories have a secure metaphysical basis as they postulate a particle ontology while satisfying the requirements imposed by the Primitive Ontology approach to quantum physics. Furthermore, their methodological perspective intentionally provides a set of rules to immunize physical theories to the conceptual and technical problems plaguing the standard formulation of Quantum Mechanics and QFT. A metaphysical analysis of both theories will be given, emphasizing the relevant features of each proposal. Finally, it will be acknowledged that, despite the metaphysical virtues and niceties of these frameworks, ultimately they do not provide definitive answers to other cogent foundational issues in QFT. Thus, these theories (as well as the other Bohmian extensions to QFT) should be considered as partial solutions to the problems raised by the quantum theory of fields. This situation can be considered incentive for further research.

scholarly journals The dissipative approach to quantum field theory: conceptual foundations and ontological implications

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Andrea Oldofredi ◽  
Hans Christian Öttinger
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Nonequilibrium Thermodynamics ◽  
Particle Creation ◽  
Mathematical Structure ◽  
Alternative Formulation ◽  
Quantum Field ◽  
Conceptual Foundations ◽  
Particle Creation And Annihilation

AbstractMany attempts have been made to provide Quantum Field Theory with conceptually clear and mathematically rigorous foundations; remarkable examples are the Bohmian and the algebraic perspectives respectively. In this essay we introduce the dissipative approach to QFT, a new alternative formulation of the theory explaining the phenomena of particle creation and annihilation starting from nonequilibrium thermodynamics. It is shown that DQFT presents a rigorous mathematical structure, and a clear particle ontology, taking the best from the mentioned perspectives. Finally, after the discussion of its principal implications and consequences, we compare it with the main Bohmian QFTs implementing a particle ontology.

scholarly journals Trajectories and particle creation and annihilation in quantum field theory

2003 ◽  
Vol 36 (14) ◽  
pp. 4143-4149 ◽  
Author(s):  
Detlef D rr ◽  
Sheldon Goldstein ◽  
Roderich Tumulka ◽  
Nino Zangh 
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Particle Creation ◽  
Quantum Field ◽  
Particle Creation And Annihilation

scholarly journals The Dirac Sea, T and C Symmetry Breaking, and the Spinor Vacuum of the Universe

Universe ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 124
Author(s):  
Vadim Monakhov
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Symmetry Breaking ◽  
Momentum Space ◽  
Quantum Field ◽  
Conjugation Operator ◽  
Dirac Sea ◽  
Canonical Anticommutation Relations ◽  
The Universe ◽  
Dirac Conjugation

We have developed a quantum field theory of spinors based on the algebra of canonical anticommutation relations (CAR algebra) of Grassmann densities in the momentum space. We have proven the existence of two spinor vacua. Operators C and T transform the normal vacuum into an alternative one, which leads to the breaking of the C and T symmetries. The CPT is the real structure operator; it preserves the normal vacuum. We have proven that, in the theory of the Dirac Sea, the formula for the charge conjugation operator must contain an additional generalized Dirac conjugation operator.

A Persistent Particle Ontology for Quantum Field Theory in Terms of the Dirac Sea

2019 ◽  
Vol 70 (3) ◽  
pp. 747-770 ◽  
Author(s):  
Dirk-André Deckert ◽  
Michael Esfeld ◽  
Andrea Oldofredi
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Quantum Field ◽  
Dirac Sea

scholarly journals El significado filosófico de la teoría cuántica de campos

2010 ◽  
Vol 16 ◽  
Author(s):  
Rafael A. Alemañ Berenguer
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Physical Science ◽  
Quantum Physics ◽  
Quantum Field ◽  
Basic Properties ◽  
Global Understanding ◽  
Conceptual Foundations ◽  
Theory Unification ◽  
Unification Of Forces

ResumenLos abundantes análisis filosóficos sobre la física cuántica no se han visto en general acompa- ñados por una consideración equiparable hacia su prolongación natural en la teoría cuántica de campos. Esta teoría se ha revelado en su versión electromagnética como una de las herramientas predictivas más precisas de la ciencia física. No obstante, sus cimientos conceptuales siguen siendo altamente controvertidos y cabe dudar si una ampliación de su formalismo conducirá a la tan deseada unificación de las fuerzas fundamentales, y por ende, a una comprensión global de las propiedades básicas de la naturaleza.Palabras claveFilosofía de la física, teoría cuántica de campos, unificación de fuerzas, predicciónAbstractThe abundant philosophical analyses on quantum physics have not been generally followed by an equivalent consideration toward their natural continuation in the quantum field theory. This theory is regarded in its electromagnetic version as one of the best predictive tools in physical science. Nevertheless, its conceptual foundations are still surrounded by controversy and it is doubtful if an extension of its formalism will lead us to the unification of the four basic forces, and therefore to a global understanding of the basic properties of nature.KeywordsPhilosophy of physics, quantum field theory, unification of forces, prediction

Quantum Field Theory, Quantum Physics and Micro-Macro Duality

10.1142/10941 ◽  
2021 ◽  
Author(s):  
Izumi Ojima ◽  
Kazuya Okamura ◽  
Hayato Saigo
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Quantum Physics ◽  
Quantum Field

‘In the Light of Leibniz and Lucretius’: An Encounter between Deleuze and New Materialism

2021 ◽  
Vol 15 (4) ◽  
pp. 497-522
Author(s):  
Hanjo Berressem
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
Quantum Physics ◽  
New Materialism ◽  
Quantum Field ◽  
Virtual Particles ◽  
Continuity And Discontinuity

While most new materialists, including Thomas Nail, tend to distance themselves from Deleuze, this essay reads the encounter of Nail's ‘process materialism’ and Deleuzian philosophy as productive rather than contentious. After tracing the affinities of their notions of continuity and discontinuity by way of Deleuze's The Fold: Leibniz and the Baroque and Nail's Lucretius I: An Ontology of Motion and Being and Motion, the essay considers Nail's unfolding of Lucretius’ luminous philosophy in relation to Deleuze's reading of Lucretius from within Deleuze's own ‘philosophical luminism’. Within the multiple overlaps between Nail and Deleuze, particularly vis-à-vis quantum physics and quantum field theory, their divergent readings of the particle–wave duality bring about a productive conceptual tension. Nail's argument about the ontological precedence of waves over particles (‘process precedes existence’) is illuminated by Deleuze's concept of their ontological complementarity (actual particles and virtual waves, virtual particles and actual waves), and vice versa.

scholarly journals Foundations of fundamental mechanics (1)

2019 ◽  
Author(s):  
Thomas Blommaert ◽  
Michael Appleby
Keyword(s):  
Field Theory ◽  
Quantum Field Theory ◽  
General Theory ◽  
Potential Field ◽  
Quantum Physics ◽  
Space Time ◽  
Quantum Field ◽  
Theory Of Relativity ◽  
General Theory Of Relativity

The following paper presents a description on the fundamental mechanics of nature.This is the first of a set of papers entitled Foundations of fundamental mechanics, in which this first paper is specifically on the nature of gravity.For all intents and purposes this paper is NOT intended to be a replacement for the General theory of Relativity (GR) (A. Einstein 1915–1916), rather it is intended to be a complimentary extension of its work, with the purpose of extending it into quantum physics. Most notably, to relate it to quantum field theory (QFT), by quantizing the metric of space-time into a potential field theory.

Sign in / Sign up

Export Citation Format

Share Document