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20022009
most citedSuperconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2

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19 papers · 1 filter

cond-mat.str-el2009194 cited

Spectral functions in one-dimensional quantum systems at T>0

Thomas Barthel, Ulrich Schollwöck, Steven R. White

We present for the first time time-dependent density-matrix renormalization-group simulations (t-DMRG) at finite temperatures. It is demonstrated how a combination of finite-temper…

cond-mat.str-el2008109 cited

Quantum quenches from integrability: the fermionic pairing model

Alexandre Faribault, Pasquale Calabrese, Jean-Sebastien Caux

Understanding the non-equilibrium dynamics of extended quantum systems after the trigger of a sudden, global perturbation (quench) represents a daunting challenge, especially in th…

cond-mat.str-el2008120 cited

A real-time study of diffusive and ballistic transport in spin-1/2 chains using the adaptive time-dependent density matrix renormalization group method

S. Langer, F. Heidrich-Meisner, J. Gemmer +2

Using the adaptive time-dependent density matrix renormalization group method, we numerically study the spin dynamics and transport in one-dimensional spin-1/2 systems at zero temp…

cond-mat.str-el200863 cited

Electron correlations in CoMnFeSi Heusler compounds

S Chadov, G. H. Fecher, C. Felser +3

This study presents the effect of local electronic correlations on the Heusler compounds CoMnFeSi as a function of the concentration . The analysis has been perf…

cond-mat.str-el20088 cited

Effect of chemical disorder on NiMnSb investigated by Appearance Potential Spectroscopy: a theoretical study

J Minár, J Braun, S Bornemann +2

The half-Heusler alloy NiMnSb is one of the local-moment ferromagnets with unique properties for future applications. Band structure calculations predict exclusively majority bands…

cond-mat.str-el200836 cited

Unitary perturbation theory approach to real-time evolution problems

A. Hackl, S. Kehrein

We discuss a new analytical approach to real-time evolution in quantum many-body systems. Our approach extends the framework of continuous unitary transformations such that it amou…