Algorithmic Matsubara integration for Hubbard-like models
نویسندگان
چکیده
منابع مشابه
The Quantum Inverse Scattering Method for Hubbard - like Models
This work is concerned with various aspects of the formulation of the quantum inverse scattering method for the one-dimensional Hubbard model. We first establish the essential tools to solve the eigenvalue problem for the transfer matrix of the classical " covering " Hubbard model within the algebraic Bethe Ansatz framework. The fundamental commutation rules exhibit a hidden 6-vertex symmetry w...
متن کاملModels for algorithmic teaching
Learning theory focuses almost entirely on the learner and its efficient realization, but neglects other parts of the learning process, most importantly the teacher, which is merely modeled as a passive data source. In this thesis, however, we study models in which the teacher plays the central, active role and which allow us to investigate teaching algorithms. In practice, teaching algorithms ...
متن کاملExperimental Evaluation of Algorithmic Effort Estimation Models using Projects Clustering
One of the most important aspects of software project management is the estimation of cost and time required for running information system. Therefore, software managers try to carry estimation based on behavior, properties, and project restrictions. Software cost estimation refers to the process of development requirement prediction of software system. Various kinds of effort estimation patter...
متن کاملAnalyticity in Hubbard Models
Abstract. The Hubbard model describes a lattice system of quantum particles with local (on-site) interactions. Its free energy is analytic when βt is small, or βt/U is small; here, β is the inverse temperature, U the on-site repulsion and t the hopping coefficient. For more general models with Hamiltonian H = V +T where V involves local terms only, the free energy is analytic when β‖T ‖ is smal...
متن کاملFerromagnetism in Hubbard models.
We present the first rigorous examples of non-singular Hubbard models which exhibit ferromagnetism at zero temperature. The models are defined in arbitrary dimensions, and are characterized by finite-ranged hoppings, dispersive bands, and finite on-site Coulomb interaction U . The picture, which goes back to Heisenberg, that sufficiently large Coulomb interaction can revert Pauli paramagnetism ...
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: 2019
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.99.035120