10 citations · 73 across the 52 of their papers we have counts for
5 papers · 1 filter
The Vacuum Polarization tensor in 1+1 dimensional space-time
Dan Solomon
Quantum field theory (QFT) is supposed to be gauge invariant. However it has been well established that a direct calculation of the vacuum polarization tensor produces a non-gauge…
Why do non-gauge invariant terms appear in the vacuum polarization tensor?
Dan Solomon
It is will known that quantum field theory at the formal level is gauge invariant. However a calculation of the vacuum polarization tensor will include non-gauge invariant terms. T…
The expectation value of the field operator
Dan Solomon
Much of the mathematical development of quantum field theory has been in support of determining the S-matrix in order to calculate scattering cross sections. However there is also…
The vacuum state and minimum energy in Dirac's hole theory
Dan Solomon
In Dirac's hole theory the vacuum state is assumed to be the state where all negative energy states are occupied and all positive energy states are unoccupied. This is often referr…
Is formal QED mathematically consistent?
Dan Solomon
The formal structure of quantum electrodynamics consists of various elements. These include the Schroedinger equation which evolves the system forward in time, the vacuum state whi…