Drude weight of the spin-12XXZ chain: Density matrix renormalization group versus exact diagonalization
نویسندگان
چکیده
منابع مشابه
Finite-temperature dynamical density matrix renormalization group and the Drude weight of spin-1/2 chains.
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 group. The entanglement growth inherent to any time-dependent calculation is significantly reduced if the auxiliary degrees of freedom which purify the statistical operator are time evolved with the physical Hamiltoni...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2013
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.87.245128