• Corpus ID: 59047071

On Real and Virtual Photons in the Davies Theory of Time-Symmetric Quantum Electrodynamics

  title={On Real and Virtual Photons in the Davies Theory of Time-Symmetric Quantum Electrodynamics},
  author={Ruth E. Kastner},
  journal={arXiv: Quantum Physics},
  • R. Kastner
  • Published 14 December 2013
  • Physics
  • arXiv: Quantum Physics
This paper explores the distinction between virtual and real photons in the context of the Davies quantum relativistic extension of the Wheeler-Feynman classical electromagnetic theory. An alternative way of understanding this distinction is proposed, based on the transactional picture as first proposed by Cramer. It is noted that this proposed account of the relationship between virtual and real photons might have empirically detectable consequences. c 

Figures from this paper

3 Antiparticles in relativistic quantum mechanics : a brief review
One of Feynman’s greatest contributions to physics was the interpretation of negative energies as antimatter in quantum field theory. A key component of this interpretation is the Feynman propagator,
Antimatter in the Direct-Action Theory of Fields
One of Feynman's greatest contributions to physics was the interpretation of negative energies as antimatter in quantum field theory. A key component of this interpretation is the Feynman propagator,
Is There Really "Retrocausation" in Time-Symmetric Approaches to Quantum Mechanics?
Time-symmetric interpretations of quantum theory are often presented as featuring "retrocausal" effects in addition to the usual forward notion of causation. This paper examines the ontological
On Quantum Non-Unitarity as a Basis for the Second Law of Thermodynamics
It was first suggested by Albert that the existence of real, physical non-unitarity at the quantum level would yield a complete explanation for the increase of entropy over time in macroscopic
A Physical Basis for the Second Law of Thermodynamics: Quantum Nonunitarity
It is argued that if the non-unitary measurement transition, as codified by Von Neumann, is a real physical process, then the ‘probability assumption’ needed to derive the Second Law of
The Emergence of Spacetime: Transactions and Causal Sets
It is noted that the transactional picture of the emergence of spacetime can provide the quantum dynamics that underlie the causal set approach as proposed by Sorkin and others.
On the Status of the Measurement Problem: Recalling the Relativistic Transactional Interpretation
In view of a resurgence of concern about the measurement problem, it is pointed out that the Relativistic Transactional Interpretation (RTI) remedies issues previously considered as drawbacks or
On Quantum Collapse as a Basis for the Second Law of Thermodynamics
The present model provides a specific physical justification for Boltzmann’s often-criticized assumption of molecular randomness (Stosszahlansatz), thereby changing its status from an ad hoc postulate to a theoretically grounded result, without requiring any change to the basic quantum theory.
Haag’s theorem as a reason to reconsider direct-action theories
It is argued that the severe consequences of Haag's inconsistency theorem for relativistic quantum field theories can be successfully evaded in the direct-action approach. Some recent favorable


Extension of Wheeler-Feynman quantum theory to the relativistic domain. II. Emission processes
For pt. I see abstr. A81745 of 1971. The classical radiation field is examined, clarifying some concepts and definitions, and the results of I are applied to derive the usual expressions for the real
The quantization of Wheeler-Feynman direct interparticle action electrodynamics is refined and extended to the relativistic domain, using the S-matrix technique developed previously. The analysis is
A quantum theory of Wheeler–Feynman electrodynamics
A quantum mechanical theory of the action-at-a-distance electrodynamics of Wheeler and Feynman is given using an S -matrix approach. The response of the universe is introduced, and a perturbation
The arrow of electromagnetic time and the generalized absorber theory
The problem of the direction of electromagnetic time, i.e., the complete dominance of retarded electromagnetic radiation over advanced radiation in the universe, is considered in the context of a
The Transactional Interpretation of Quantum Mechanics: The Reality of Possibility
Preface 1. Introduction: quantum peculiarities 2. The map vs the territory 3. The original TI: fundamentals 4. The new possibilist TI: fundamentals 5. Challenges, replies, and applications 6. PTI and
Classical Electrodynamics in Terms of Direct Interparticle Action
Many of our present hopes to understand the behavior of matter and energy rely upon the notion of field. Consequently it may be appropriate to re-examine critically the origin and use of this
The transactional interpretation of quantum mechanics
The transactional interpretation of quantum mechanics [1] was originally published in 1986 and is now about 14 years old. It is an explicitly nonlocal and Lorentz invariant alternative to the
Classical Electrodynamics
Electrodynamics of Particles and PlasmasBy P. C. Clemmow and J. P. Dougherty. (Addison-Wesley Series in Advanced Physics.) Pp. ix + 457. (Addison-Wesley London, September 1969.) 163s.
Interaction with the Absorber as the Mechanism of Radiation
"We must, therefore, be prepared to find that further advance into this region will require a still more extensive renunciation of features which we are accustomed to demand of the space time mode of
The Possibilist Transactional Interpretation and Relativity
A recent ontological variant of Cramer’s Transactional Interpretation, called “Possibilist Transactional Interpretation” or PTI, is extended to the relativistic domain. The present interpretation