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Finite temperature dynamical DMRG and the Drude weight of spin-1/2 chains
C. Karrasch, J. H. Bardarson, J. E. Moore
We propose an easily implemented approach to study time-dependent correlation functions of one dimensional systems at finite temperature T using the density matrix renormalization…
Universal conductance fluctuations in Dirac materials in the presence of long-range disorder
E. Rossi, J. H. Bardarson, M. S. Fuhrer +1
We study quantum transport in Dirac materials with a single fermionic Dirac cone (strong topological insulators and graphene in the absence of intervalley coupling) in the presence…
Quantum transport and two-parameter scaling at the surface of a weak topological insulator
Roger S. K. Mong, Jens H. Bardarson, Joel E. Moore
Weak topological insulators have an even number of Dirac cones in their surface spectrum and are thought to be unstable to disorder, which leads to an insulating surface. Here we a…
Logarithmic terms in entanglement entropies of 2D quantum critical points and Shannon entropies of spin chains
Michael P. Zaletel, Jens H. Bardarson, Joel E. Moore
Universal logarithmic terms in the entanglement entropy appear at quantum critical points (QCPs) in one dimension (1D) and have been predicted in 2D at QCPs described by 2D conform…