Solving the Multi-site and Multi-orbital Dynamical Mean Field Theory Using Density Matrix Renormalization
نویسندگان
چکیده
منابع مشابه
Solving the Multi-site and Multi-orbital Dynamical Mean Field Theory Using Density Matrix Renormalization
We implement an efficient numerical method to calculate response functions of complex impurities based on the Density Matrix Renormalization Group (DMRG) and use it as the impurity-solver of the Dynamical Mean Field Theory (DMFT). This method uses the correction vector to obtain precise Green’s functions on the real frequency axis at zero temperature. By using a self-consistent bath configurati...
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F. Alexander Wolf,1 Ian P. McCulloch,2 and Ulrich Schollwöck1 1Theoretical Nanophysics, Arnold Sommerfeld Center for Theoretical Physics, LMU Munich, Theresienstrasse 37, 80333 München, Germany 2Centre for Engineered Quantum Systems, School of Physical Sciences, The University of Queensland, Brisbane, Queensland 4072, Australia (Received 13 October 2014; revised manuscript received 27 November ...
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We present an extension of the previously proposed mean-field renor-malization method to model Hamiltonians which are characterized by more than just one type of interaction. The method rests on scaling assumptions about the magnetization of different sublattices of the given lattice and it generates as many flow equations as coupling constants without arbitrary truncations on the renormalized ...
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ژورنال
عنوان ژورنال: Frontiers in Physics
سال: 2018
ISSN: 2296-424X
DOI: 10.3389/fphy.2018.00013