Finite charge and field renormalizations in reciprocally invariant quantum electrodynamics

1983 ◽  
Vol 37 (14) ◽  
pp. 501-504
Author(s):  
E. Prugovečki
Keyword(s):  
Quantum Electrodynamics ◽  
Invariant Quantum

Effective Lagrangian for scale-invariant quantum electrodynamics

1992 ◽  
Vol 45 (12) ◽  
pp. 4672-4680 ◽  
Author(s):  
William A. Bardeen ◽  
Sherwin T. Love
Keyword(s):  
Quantum Electrodynamics ◽  
Scale Invariant ◽  
Effective Lagrangian ◽  
Invariant Quantum

Dilatationally Invariant Quantum Electrodynamics of Electrons and Muons

1963 ◽  
Vol 132 (5) ◽  
pp. 2325-2330 ◽  
Author(s):  
R. Haag ◽  
Th. A. J. Maris
Keyword(s):  
Quantum Electrodynamics ◽  
Invariant Quantum

Gauge-Invariant Quantum Electrodynamics. II

1965 ◽  
Vol 139 (6B) ◽  
pp. B1665-B1668 ◽  
Author(s):  
I. Goldberg
Keyword(s):  
Quantum Electrodynamics ◽  
Gauge Invariant ◽  
Invariant Quantum

scholarly journals PT -symmetric quantum electrodynamics and unitarity

2013 ◽  
Vol 371 (1989) ◽  
pp. 20120057 ◽  
Author(s):  
Kimball A Milton ◽  
E. K. Abalo ◽  
Prachi Parashar ◽  
Nima Pourtolami ◽  
J. Wagner
Keyword(s):  
Field Theory ◽  
Quantum Mechanics ◽  
Quantum Electrodynamics ◽  
Discrete Symmetry ◽  
New Approach ◽  
Higher Dimensional ◽  
The Status ◽  
Symmetric Quantum ◽  
Quantum Mechanical Systems ◽  
Invariant Quantum

More than 15 years ago, a new approach to quantum mechanics was suggested, in which Hermiticity of the Hamiltonian was to be replaced by invariance under a discrete symmetry, the product of parity and time-reversal symmetry, . It was shown that, if is unbroken, energies were, in fact, positive, and unitarity was satisfied. Since quantum mechanics is quantum field theory in one dimension—time—it was natural to extend this idea to higher-dimensional field theory, and in fact an apparently viable version of -invariant quantum electrodynamics (QED) was proposed. However, it has proved difficult to establish that the unitarity of the scattering matrix, for example, the Källén spectral representation for the photon propagator, can be maintained in this theory. This has led to questions of whether, in fact, even quantum mechanical systems are consistent with probability conservation when Green’s functions are examined, since the latter have to possess physical requirements of analyticity. The status of QED will be reviewed in this paper, as well as the general issue of unitarity.

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