1 citations · 3 across the 3 of their papers we have counts for
3 papers
quant-ph2012★ 1 cited
N-quantum calculation of the hydrogen atom with one-photon exchange
O. W. Greenberg, Steve Cowen
The N-quantum approach (NQA) to quantum field theory uses the complete and irreducible set of in or out fields, including in or out fields for bound states, as standard building bl…
hep-ph2012★ 1 cited
Construction of asymptotic fields for a charged particle
O. W. Greenberg, Steve Cowen
Asymptotic fields do not exist in theories with massless particles and fields, because the vacuum matrix elements of products of the interacting fields in such theories do not have…
hep-ph2011★ 1 cited
The N-Quantum Approximation and Bound States in Motion
Steven Cowen
We use an alternative method to the Bethe-Salpeter equation, the N-Quantum approximation (NQA), for studying bound states in motion. We use this method to find a relativistic equat…