activity
19932012
most citedFinite-temperature linear conductance from the Matsubara Green function without analytic continuation to the real axis

32 citations · 63 across the 3 of their papers we have counts for

collaborators

17 papers

cond-mat.str-el2012★ 15 cited

Physics in one dimension: theoretical concepts for quantum many-body systems

K. Schonhammer

Various sophisticated approximation methods exist for the description of quantum many-body systems. It was realized early on that the theoretical description can simplify considera…

cond-mat.str-el2010★ 32 cited

Finite-temperature linear conductance from the Matsubara Green function without analytic continuation to the real axis

C. Karrasch, V. Meden, K. Schönhammer

We illustrate how to calculate the finite-temperature linear-response conductance of quantum impurity models from the Matsubara Green function. A continued fraction expansion of th…

cond-mat.mes-hall2009★ 16 cited

Full counting statistics for noninteracting fermions: Exact finite temperature results and generalized long time approximation

K. Schönhammer

Exact numerical results for the full counting statistics (FCS) of a one-dimensional tight-binding model of noninteracting electrons are presented at finite temperatures using an id…

cond-mat.str-el2008

Coupling-geometry-induced temperature scales in the conductance of Luttinger liquid wires

P. Wächter, V. Meden, K. Schönhammer

We study electronic transport through a one-dimensional, finite-length quantum wire of correlated electrons (Luttinger liquid) coupled at arbitrary position via tunnel barriers to…

cond-mat.str-el2001

Newton's law for Bloch electrons, Klein factors and deviations from canonical commutation relations

K. Schoenhammer

The acceleration theorem for Bloch electrons in a homogenous external field is usually presented using quasiclassical arguments. In quantum mechanical versions the Heisenberg equat…

cond-mat.str-el2001

Scaling behavior of impurities in mesoscopic Luttinger liquids

V. Meden, W. Metzner, U. Schollwoeck +1

Using a functional renormalization group we compute the flow of the renormalized impurity potential for a single impurity in a Luttinger liquid over the entire energy range - from…