Sökning: "Stefan Rommer"

Hittade 2 avhandlingar innehållade orden Stefan Rommer.

1. 1. Renormalization groups and variational states in an interacting 1D quantum model

   Författare :Stefan Rommer; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Heisenberg model; variational states; DMGR;

   Sammanfattning : .... LÄS MER

3. 2. Strongly Correlated Models in One Dimension from a Density Matrix Renormalization Group Perspective

   Författare :Stefan Rommer; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; matrix product states; impurities; density matrix renormalization group; Heisenberg model; spin chain; DMRG;

   Sammanfattning : The density matrix renormalization group (DMRG) is a numerical method for studying low dimensional strongly correlated models. The study of these models is one of the most active areas of condensed matter physics today and has been spurred not only by the discovery of high temperature superconductivity but also by experiments on new compounds. LÄS MER