436 citations · 607 across the 18 of their papers we have counts for
10 papers · 1 filter
Causal signal transmission by quantum fields -- V: Generalised Keldysh rotations and electromagnetic response of the Dirac sea
L I Plimak, S Stenholm
The connection between real-time quantum field theory (RTQFT) [see, e.g., A.\ Kamenev and A.\ Levchenko, Advances in Physics {58} (2009) 197] and phase-space techniques [E.\ Wolf a…
Quantum-field-theoretical approach to phase-space techniques: Symmetric Wick theorem and multitime Wigner representation
L I Plimak, M K Olsen
In this work we present the formal background used to develop the methods used in earlier works to extend the truncated Wigner representation of quantum and atom optics in order to…
Causal signal transmission by quantum fields. Electromagnetic interaction of distinguishable devices and the optical equivalence theorem
L. I. Plimak, S. Stenholm
Generalised phase-space techniques for electromagnetic interactions beyond the rotating wave approximation [L.P. and S.S., arXiv:1104.3825 (2011)] is applied to interactions of dis…
Causal signal transmission by quantum fields. Phase-space approach to quantum electrodynamics
L. I. Plimak, S. Stenholm
Phase-space techniques are generalized to nonlinear quantum electrodynamics beyond the rotating wave approximation, resulting in an essentially classical picture of radiation dynam…
Efimov states in atom-molecular collisions
M. A. Efremov, L. Plimak, B. Berg +2
We analyse scattering of a heavy atom off a weakly bound molecule comprising an identical heavy and a light atom in the Born-Oppenheimer approximation. We focus on the situation wh…
Regularisation as a quantised low-pass filter
L I Plimak
A divergence-free approach to relativistic quantum electrodynamics based on regularisation of equations of quantum mechanics is discussed. This approach is shown to be exactly equi…