Zobrazeno 1 - 10
of 2 161
pro vyhledávání: '"Pietro, M."'
Motivated by the recent discovery of superconductivity in twisted bilayer WSe$_2$, we analyze the correlated physics in this system in the framework of a continuum model for the moir\'e superlattice. Using the symmetries in a fine-tuned limit of the
Externí odkaz:
http://arxiv.org/abs/2407.02393
A long standing problem in the study of the under-hole-doped cuprates has been the description of the Fermi surfaces underlying the high magnetic field quantum oscillations, and their connection to the higher temperature pseudogap metal. Harrison and
Externí odkaz:
http://arxiv.org/abs/2405.08817
We obtain an almost complete understanding of the mean-field phase diagram of the two-dimensional Hubbard model on a square lattice with a sizable next-nearest neighbor hopping and a moderate interaction strength. In particular, we clarify the nature
Externí odkaz:
http://arxiv.org/abs/2403.09862
We investigate topological superconductivity in the Rashba-Hubbard model, describing heavy-atom superlattice and van der Waals materials with broken inversion. We focus in particular on fillings close to the van Hove singularities, where a large dens
Externí odkaz:
http://arxiv.org/abs/2304.07100
Comprehensive mean-field analysis of magnetic and charge orders in the two-dimensional Hubbard model
We present an unbiased mean-field analysis of magnetic and charge orders in the two-dimensional Hubbard model on a square lattice, both at zero and finite temperatures. Unrestricted Hartree-Fock calculations on large finite lattices are complemented
Externí odkaz:
http://arxiv.org/abs/2303.15358
Autor:
Bonetti, Pietro M., Metzner, Walter
We present a SU(2) gauge theory of fluctuating magnetic order in the two-dimensional Hubbard model. The theory is based on a fractionalization of electrons in fermionic chargons and bosonic spinons. The chargons undergo N\'eel or spiral magnetic orde
Externí odkaz:
http://arxiv.org/abs/2207.00829
Autor:
Fraboulet, Kilian, Heinzelmann, Sarah, Bonetti, Pietro M., Al-Eryani, Aiman, Vilardi, Demetrio, Toschi, Alessandro, Andergassen, Sabine
Publikováno v:
Eur. Phys. J. B 95, 202 (2022)
We illustrate the algorithmic advantages of the recently introduced single-boson exchange (SBE) formulation for the one-loop functional renormalization group (fRG), by applying it to the two-dimensional Hubbard model on a square lattice. We present a
Externí odkaz:
http://arxiv.org/abs/2206.14478
Autor:
Bonetti, Pietro M.
Publikováno v:
Phys. Rev. B 106, 155105 (2022)
We derive Ward identities for fermionic systems exhibiting a gauge symmetry that gets globally broken. In particular, we focus on the relation that connects the gauge field response functions to the transverse susceptibilities of the order parameter.
Externí odkaz:
http://arxiv.org/abs/2204.04132
Autor:
Erik Freeland DO, Aine Gallahue BS, Adel Mahjoub MD, Pietro M. Gentile BS, Nicholas D'Antonio MD, Vineeth Romiyo BS
Publikováno v:
Foot & Ankle Orthopaedics, Vol 9 (2024)
Introduction/Purpose: Tantalum coated metal spacers (TCMS) have recently been utilized to fill and provide structure to large bony defects in the hindfoot. Tantalum is an appealing material due to its biocompatibility, lack of immune response generat
Externí odkaz:
https://doaj.org/article/c46b4142d62f491daf8d5b66897b2dfa
Autor:
Bonetti, Pietro M., Metzner, Walter
Publikováno v:
Phys. Rev. B 105, 134426 (2022)
We analyze the properties of magnons in metallic electron systems with spiral magnetic order. Our analysis is based on the random phase approximation for the susceptibilities of tight binding electrons with a local Hubbard interaction in two or three
Externí odkaz:
http://arxiv.org/abs/2202.05660