39 citations · 78 across the 5 of their papers we have counts for
5 papers
Effective interaction in an unbalanced Fermion mixture
Christian Recher, Heinerich Kohler
A one dimensional Fermi mixture with delta--interaction is investigated in the limit of extreme imbalance. In particular we consider the cases of only one or two minority Fermions…
Fidelity and level correlations in the transition from regularity to chaos
Heiner Kohler, Christian Recher
Mean fidelity amplitude and parametric energy--energy correlations are calculated exactly for a regular system, which is subject to a chaotic random perturbation. It turns out that…
From hardcore Bosons to free Fermions with Painlev{é} V
Christian Recher, Heiner Kohler
We calculate zero temperature Green's function, the density--density correlation and expectation values of a one--dimensional quantum particle which interacts with a Fermi--sea via…
Supersymmetry approach to Wishart correlation matrices: Exact results
Christian Recher, Mario Kieburg, Thomas Guhr +1
We calculate the `one-point function', meaning the marginal probability density function for any single eigenvalue, of real and complex Wishart correlation matrices. No explicit ex…
On the Eigenvalue Density of Real and Complex Wishart Correlation Matrices
Christian Recher, Mario Kieburg, Thomas Guhr
Wishart correlation matrices are the standard model for the statistical analysis of time series. The ensemble averaged eigenvalue density is of considerable practical and theoretic…