76 citations · 252 across the 13 of their papers we have counts for
6 papers · 1 filter
The semiclassical propagator in Fock space: dynamical echo and many-body interference
Thomas Engl, Juan Diego Urbina, Klaus Richter
We present a semiclassical approach to many-body quantum propagation in terms of coherent sums over quantum amplitudes associated with the solutions of corresponding classical nonl…
Breakdown of Anderson localization in the transport of Bose-Einstein condensates through one-dimensional disordered potentials
Julien Dujardin, Thomas Engl, Peter Schlagheck
We study the transport of an interacting Bose--Einstein condensate through a 1D correlated disorder potential. We use for this purpose the truncated Wigner method, which is, as we…
Periodic Mean-Field Solutions and the Spectra of Discrete Bosonic Fields: Trace Formula for Bose-Hubbard Models
Thomas Engl, Juan Diego Urbina, Klaus Richter
We consider the many-body spectra of interacting bosonic quantum fields on a lattice in the semiclassical limit of large particle number . We show that the many-body density of…
Aspects of integrability in a classical model for non-interacting fermionic fields
Simon Grosse-Holz, Thomas Engl, Klaus Richter +1
In this work we investigate the issue of integrability in a classical model for noninteracting fermionic fields. This model is constructed via classical-quantum correspondence obta…
Boson Sampling as Canonical Transformation: A semiclassical approach in Fock space
Thomas Engl, Juan Diego Urbina, Quirin Hummel +1
We show that a theory of complex scattering between many-body (Fock) states can be constructed such that its classical limit is a canonical transformation thus encoding quantum int…
Describing many-body bosonic waveguide scattering with the truncated Wigner method
Julien Dujardin, Thomas Engl, Juan Diego Urbina +1
We consider quasi-stationary scattering of interacting bosonic matter waves in one-dimensional waveguides, as they arise in guided atom lasers. We show how the truncated Wigner (tW…