Chebyshev matrix product state impurity solver for dynamical mean-field theory
نویسندگان
چکیده
منابع مشابه
Imaginary-Time Matrix Product State Impurity Solver for Dynamical Mean-Field Theory
F. Alexander Wolf, Ara Go, Ian P. McCulloch, Andrew J. Millis, and Ulrich Schollwöck Department of Physics, Arnold Sommerfeld Center for Theoretical Physics, LMU Munich, 80333 München, Germany Department of Physics, Columbia University in the City of New York, New York, New York 10027, USA Centre for Engineered Quantum Systems, School of Physical Sciences, The University of Queensland, Brisbane...
متن کاملHamiltonian-based impurity solver for nonequilibrium dynamical mean-field theory
We derive an exact mapping from the action of nonequilibrium dynamical mean-field theory (DMFT) to a single-impurity Anderson model (SIAM) with time-dependent parameters, which can be solved numerically by exact diagonalization. The representability of the nonequilibrium DMFT action by a SIAM is established as a rather general property of nonequilibrium Green functions. We also obtain the noneq...
متن کاملImpurity problems for steady-state nonequilibrium dynamical mean-field theory
The mapping of steady-state nonequilibrium dynamical mean-field theory from the lattice to the impurity is described in detail. Our focus is on the case with current flow under a constant dc electric field of arbitrary magnitude. In addition to formulating the problem via path integrals and functional derivatives, we also describe the distribution function dependence of the retarded and advance...
متن کاملFast multi-orbital equation of motion impurity solver for dynamical mean field theory.
We propose a fast multi-orbital impurity solver for dynamical mean field theory (DMFT). Our DMFT solver is based on the equations of motion (EOMs) for local Green's functions and is constructed by generalizing from the single-orbital case to the multi-orbital case with the inclusion of the inter-orbital hybridizations and applying a mean field approximation to the inter-orbital Coulomb interact...
متن کاملSolving nonequilibrium dynamical mean-field theory using matrix product states
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 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2014
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.90.115124