188 citations · 846 across the 27 of their papers we have counts for
6 papers · 1 filter
Current Density Functional Theory for one-dimensional fermions
Michael Dzierzawa, Ulrich Eckern, Stefan Schenk +1
The frequency-dependent response of a one-dimensional fermion system is investigated using Current Density Functional Theory (CDFT) within the local approximation (LDA). DFT-LDA, a…
Successes and failures of Bethe Ansatz Density Functional Theory
Stefan Schenk, Michael Dzierzawa, Peter Schwab +1
The response of a one-dimensional fermion system is investigated using Density Functional Theory (DFT) within the Local Density Approximation (LDA), and compared with exact results…
Bosonization of dimerized Hubbard chains
C. Mocanu, M. Dzierzawa, P. Schwab +1
The role of Klein factors is investigated for the bosonized Hamiltonian of the dimerized Hubbard model. Contrary to previous approaches we take into account their number changing p…
Finite-Size Bosonization and Self-Consistent Harmonic Approximation
C. Mocanu, M. Dzierzawa, P. Schwab +1
The self-consistent harmonic approximation is extended in order to account for the existence of Klein factors in bosonized Hamiltonians. This is important for the study of finite s…
On localization effects in underdoped cuprates
C. Castellani, P. Schwab, M. Grilli
We comment on transport experiments in underdoped LaSrCuO in the non-superconducting phase. The temperature dependence of the resistance strongly resembles what is expected from st…
Specific Heat Anomaly and Adiabatic Hysteresis in Disordered Electron Systems in a Magnetic Field
Peter Schwab, Roberto Raimondi, Claudio Castellani
We consider the thermodynamic behavior of a disordered interacting electron system in two dimensions. We show that the corrections to the thermodynamic potential in the weakly loca…