40 citations · 93 across the 3 of their papers we have counts for
5 papers
Efimov correlations in strongly interacting Bose gases
Marcus Barth, Johannes Hofmann
We compute the virial coefficients, the contact parameters, and the momentum distribution of a strongly interacting three-dimensional Bose gas by means of a virial expansion up to…
Pairing effects in the non-degenerate limit of the two-dimensional Fermi gas
Marcus Barth, Johannes Hofmann
The spectral function of a spin-balanced two-dimensional Fermi gas with short-range interactions is calculated by means of a quantum cluster expansion. Good qualitative agreement i…
Short-distance properties of Coulomb systems
Johannes Hofmann, Marcus Barth, Wilhelm Zwerger
We use the operator product expansion to derive exact results for the momentum distribution and the static structure factor at high momentum for a jellium model of electrons in bot…
Clock shift in a strongly interacting two-dimensional Fermi gas
Christian Langmack, Marcus Barth, Wilhelm Zwerger +1
We derive universal relations for the radio-frequency (rf) spectroscopy of a two-dimensional Fermi gas consisting of two spin states with a resonant S-wave interaction. The rf tran…
Tan relations in one dimension
Marcus Barth, Wilhelm Zwerger
We derive exact relations that connect the universal -decay of the momentum distribution at large with both thermodynamic properties and correlation functions of two-com…