Kron's Non-Riemannian Electrodynamics
نویسندگان
چکیده
منابع مشابه
Riemannian light cone from vanishing birefringence in premetric vacuum electrodynamics
We consider premetric electrodynamics with a local and linear constitutive law for the vacuum. Within this framework, we find quartic Fresnel wave surfaces for the propagation of light. If we require vanishing birefringence in vacuum, then a Riemannian light cone is implied. No proper Finslerian structure can occur. This is generalized to dynamical equations of any order.
متن کاملNon-Equilibrium Quantum Electrodynamics
We employ the influence functional technique to trace out the photonic contribution from full quantum electrodynamics. The reduced density matrix propagator then is constructed for the electron field. We discuss the role of time-dependent renormalization in the propagator and focus our attention to the possibility of obtaining a dynamically induced superselection rule. As a final application of...
متن کاملNon-Locality in Classical Electrodynamics
Classical electrodynamicsÐif developed consistently, as in Dirac's classical theory of the electronÐis causally non-local. I distinguish two distinct causal locality principles and argue, using Dirac's theory as my main case study, that neither can be reduced to a non-causal principle of local determinism.
متن کاملProbing non-Riemannian spacetime geometry
The equations of motion for matter in non-Riemannian spacetimes are derived via a multipole method. It is found that only test bodies with microstructure couple to the non-Riemannian spacetime geometry. Consequently it is impossible to detect spacetime torsion with the satellite experiment Gravity Probe B, contrary to some recent claims in the literature.
متن کاملProspects of Non-Riemannian Cosmology
In this work we provide the motivation for considering non-Riemannian models in cosmology. Non-Riemannian extensions of general relativity theory have been studied for a long time. In such theories the spacetime continuum is no longer described by the metric alone but endowed with additional geometric quantities. These new quantities can be coupled to the intrinsic properties of matter in a ver...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Reviews of Modern Physics
سال: 1949
ISSN: 0034-6861
DOI: 10.1103/revmodphys.21.535