Results 81 to 90 of about 1,759 (181)

Low Temperature Lanczos Method

open access: yes, 2002
We present a modified finite temperature Lanczos method for the evaluation of dynamical and static quantities of strongly correlated electron systems that complements the finite temperature method (FTLM) introduced by Jaklic and Prelovsek for low temperatures. Together they allow accurate calculations at any temperature with moderate effort.
Aichhorn, Markus   +3 more
openaire   +2 more sources

Magnetocaloric effect in quantum spin-s chains

open access: yesCondensed Matter Physics, 2009
We compute the entropy of antiferromagnetic quantum spin-s chains in an external magnetic field using exact diagonalization and Quantum Monte Carlo simulations. The magnetocaloric effect, i.
A. Honecker, S. Wessel
doaj   +1 more source

Approximate Exponential Integrators for Time-Dependent Equation-of-Motion Coupled Cluster Theory. [PDF]

open access: yesJ Chem Theory Comput, 2023
Williams-Young DB   +3 more
europepmc   +1 more source

Efficient hyperparameter estimation in Bayesian inverse problems using sample average approximation. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Chung J   +3 more
europepmc   +1 more source

A Vibronic Coupling Model to Study the Nonadiabatic Dynamics of Polyenes. [PDF]

open access: yesJ Phys Chem A
Georges TN   +3 more
europepmc   +1 more source

Chemically tunable quantum magnetism on the anisotropic triangular lattice in rhenium oxyhalides. [PDF]

open access: yesNat Commun
Gen M   +16 more
europepmc   +1 more source

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