21 citations · 145 across the 17 of their papers we have counts for
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Multi-Time Version of the Landau-Peierls Formulation of Quantum Electrodynamics
Matthias Lienert, Roderich Tumulka
Landau and Peierls wrote down the Hamiltonian of a simplified version of quantum electrodynamics in the particle-position representation. We present a multi-time version of their S…
Probability conservation for multi-time integral equations
Matthias Lienert
In relativistic quantum theory, one sometimes considers integral equations for a wave function depending on two space-time points for two particles. A serious issue wi…
Direct interaction along light cones at the quantum level
Matthias Lienert
Here, we point out that interactions with time delay can be described at the quantum level using a multi-time wave function , i.e., a wave function depending on one…
Multi-Time Wave Functions versus Multiple Timelike Dimensions
Matthias Lienert, Sören Petrat, Roderich Tumulka
Multi-time wave functions are wave functions for multi-particle quantum systems that involve several time variables (one per particle). In this paper we contrast them with solution…
Multi-Time Wave Functions
Matthias Lienert, Sören Petrat, Roderich Tumulka
In non-relativistic quantum mechanics of particles in three spatial dimensions, the wave function is a function of position coordinates and one time…
On the question of current conservation for the Two-Body Dirac equations of constraint theory
Matthias Lienert
The Two-Body Dirac equations of constraint theory are of special interest not only in view of applications for phenomenological calculations of mesonic spectra but also because the…