中文
相关论文

相关论文: Convolutional restricted Boltzmann machine (CRBM) …

200 篇论文

We introduce the notion of superstructure Mottness to describe the Mott and Wigner-Mott transition in doped strongly correlated electron systems at commensurate filling fractions away from one electron per site. We show that superstructure…

强关联电子 · 物理学 2009-10-01 Chunhua Li , Ziqiang Wang

We study the Hubbard model with time-reversal invariant flux and spin-orbit coupling and position-dependent onsite energies on the kagome lattice, using numerical and analytical methods. In particular, we perform calculations using real…

强关联电子 · 物理学 2022-06-08 Irakli Titvinidze , Julian Legendre , Karyn Le Hur , Walter Hofstetter

We study d-wave superconductivity in the extended Hubbard model in the strong correlation limit for a large intersite Coulomb repulsion V. We argue that in the Mott-Hubbard regime with two Hubbard subbands there emerges a new energy scale…

强关联电子 · 物理学 2014-09-08 Nikolay M. Plakida , Viktor S. Oudovenko

Conductivity is one of the most direct probes of electronic systems, yet its theoretical description remains challenging in the presence of strong non-local correlations. In this Letter, we analyze the conductivity of the half-filled…

We study the electronic structure and correlations in the geometrically frustrated two dimensional checkerboard lattice. In the large U limit considered here we start from an extended Hubbard model of spinless fermions at half-filling. We…

强关联电子 · 物理学 2007-05-23 Y. Z. Zhang , Tran Minh-Tien , V. Yushankhai , P. Thalmeier

There is increasing recognition that the multiorbital nature of the 3d electrons is important to the proper description of the electronic states in the normal state of the iron-based superconductors. Earlier studies of the pertinent…

强关联电子 · 物理学 2017-09-08 Rong Yu , Qimiao Si

We study the expectation value of the logarithm of the partition function of large binary-to-binary lattice-gas Restricted Boltzmann Machines (RBMs) within a replica-symmetric ansatz, averaging over the disorder represented by the…

无序系统与神经网络 · 物理学 2023-01-25 David C. Hoyle

A new decoupling scheme is developed for the Hubbard model which provides a unified description of the spin-symmetric (paramagnetic metallic and insulating) phases as well as the broken-symmetry AFI phase. Independent of magnetic ordering,…

强关联电子 · 物理学 2007-05-23 Avinash Singh

We study a system of electrons on a one-dimensional lattice, interacting through the long range Coulomb forces, by means of a variational technique which is the strong coupling analog of the Gutzwiller approach. The problem is thus the…

强关联电子 · 物理学 2007-05-23 S. Fratini , B. Valenzuela , D. Baeriswyl

The interplay of charge, spin, lattice, and orbital degrees of freedom leads to a wide range of emergent phenomena in strongly correlated systems. In heterobilayer transition metal dichalcogenide moir\'e systems, recent observations of Mott…

We present a polar coordinate lattice Boltzmann kinetic model for compressible flows. A method to recover the continuum distribution function from the discrete distribution function is indicated. Within the model, a hybrid scheme being…

软凝聚态物质 · 物理学 2018-03-09 Chuandong Lin , Aiguo Xu , Guangcai Zhang , Yingjun Li , Sauro Succi

The Mott metal-insulator transition in the Hubbard model is studied by constructing a dynamical slave-boson mean-field theory in the limit of large lattice coordination number $z$ that incorporates the binding between doubly occupied…

强关联电子 · 物理学 2020-01-15 Sen Zhou , Long Liang , Ziqiang Wang

The equation for the electron Green's function of the fermionic Hubbard model, derived using the strong coupling diagram technique, is solved self-consistently for the near-neighbor form of the kinetic energy and for half-filling. In this…

强关联电子 · 物理学 2015-06-11 A. Sherman

The interplay between delocalisation and repulsive interactions can cause electronic systems to undergo a Mott transition between a metal and an insulator. Here we use neural network hidden fermion determinantal states (HFDS) to uncover…

强关联电子 · 物理学 2024-12-10 Chloé Gauvin-Ndiaye , Joseph Tindall , Javier Robledo Moreno , Antoine Georges

The so-called phaseless quantum Monte-Carlo method currently offers one of the best performing theoretical framework to investigate interacting Fermi systems. It allows to extract an approximate ground-state wavefunction by averaging…

强关联电子 · 物理学 2017-03-31 Olivier Juillet , Alexandre Leprévost , Jérémy Bonnard , Raymond Frésard

We study the Hubbard model with bond-charge interaction (`correlated hopping') in terms of the Gutzwiller wave function. We show how to express the Gutzwiller expectation value of the bond-charge interaction in terms of the correlated…

强关联电子 · 物理学 2009-10-31 M. Kollar , D. Vollhardt

CrSBr is an air-stable 2D van der Waals semiconducting magnet with great technological promise, but its atomic-scale magnetic interactions -- crucial information for high-frequency switching -- are poorly understood. We present an…

材料科学 · 物理学 2022-07-18 A. Scheie , M. Ziebel , D. G. Chica , Y. J. Bae , Xiaoping Wang , A. I. Kolesnikov , Xiaoyang Zhu , X. Roy

We study, using quantum Monte-Carlo simulations, the bosonic Kondo-Hubbard model in a two dimensional square lattice. We explore the phase diagram and analyse the mobility of particles and magnetic properties. At unit filling, the…

量子气体 · 物理学 2017-01-18 T. Flottat , F. Hébert , V. G. Rousseau , R. T. Scalettar , G. G. Batrouni

We employ dynamical mean field theory (DMFT) with a Quantum Monte Carlo (QMC) atomic solver to investigate the finite temperature Mott transition in the Hubbard model with the nearest neighbor hopping on a triangular lattice at…

强关联电子 · 物理学 2009-11-11 K. Aryanpour , W. E. Pickett , R. T. Scalettar

With high-Tc cuprates in mind, properties of correlated dx2-y2-wave superconducting (SC) and antiferromagnetic (AF) states are studied for the Hubbard (t-t'-U) model on square lattices, using a variational Monte Carlo method. We employ…

超导电性 · 物理学 2012-12-14 Hisatoshi Yokoyama , Masao Ogata , Yukio Tanaka , Kenji Kobayashi , Hiroki Tsuchiura