Zobrazeno 1 - 10
of 59 407
pro vyhledávání: '"bond order"'
Autor:
Weber, Manuel
The Hubbard-Holstein model is one of the central models that describe the competition between electron-electron and electron-phonon interactions. In one dimension and at half-filling, the interplay between an electronic spin-density wave and a phonon
Externí odkaz:
http://arxiv.org/abs/2412.13263
Almost four decades of intense research have been invested to study the physics of high-T$_c$ cuprate superconductors. The recent discovery of high-T$_c$ superconductivity in pressurized bilayer nickelates and its potential similarities with cuprate
Externí odkaz:
http://arxiv.org/abs/2411.00269
Autor:
Lang, Peter F.1 (AUTHOR) p.f.lang@gmail.com
Publikováno v:
Foundations of Chemistry. Apr2024, Vol. 26 Issue 1, p167-177. 11p.
Publikováno v:
Molecular Physics e2395438 (2024)
Averaged local bond order parameters based on spherical harmonics, also known as Lechner and Dellago order parameters, are routinely used to determine crystal structures in molecular simulations. Among different options, the combination of the $\over
Externí odkaz:
http://arxiv.org/abs/2409.00508
The mechanism of CDW and its 3D structure are important fundamental issues in kagome metals. We have previously shown that, based on a 2D model, $2\times 2$ bond order (BO) emerges due to the paramagnon-interference (PMI) mechanism and that its fluct
Externí odkaz:
http://arxiv.org/abs/2408.11337
Autor:
Kim, Lukas, Head-Gordon, Teresa
Identification of the breaking point for the chemical bond is essential for our understanding of chemical reactivity. The current consensus is that a point of maximal electron delocalization along the bonding axis separates the different bonding regi
Externí odkaz:
http://arxiv.org/abs/2408.14643
We perform sign-problem-free determinant quantum Monte Carlo simulations of the optical Su-Schrieffer-Heeger (SSH) model on a half-filled honeycomb lattice. In particular, we investigate the model's semi-metal (SM) to Kekul{\'e} Valence Bond Solid (K
Externí odkaz:
http://arxiv.org/abs/2407.09366
Autor:
Stricker, Laura, Derlet, Peter M., Demirörs, Ahmet Faik, Vutukuri, Hanumantha Rao, Vermant, Jan
Publikováno v:
Phys. Rev. Lett., 132, 218202, 2024
In this combined experimental and simulation study, we utilize bond-order topology to quantitatively match particle volume fraction in mechanically uniformly compressed colloidal suspensions with temperature in atomistic simulations. The obtained map
Externí odkaz:
http://arxiv.org/abs/2406.03469
Publikováno v:
Phys. Rev. B 109, 075127 (2024)
The effects of optical bond phonons coupled to electrons in two-dimensional lattices have attracted much interest recently, with the hope to explore unconventional superconducting mechanism and pairing symmetries. Here we conduct a systematic investi
Externí odkaz:
http://arxiv.org/abs/2402.10458
Most nonperturbative numerical studies of electron-phonon interactions focus on model Hamiltonians where the electrons interact with a phonon branch via a single type of microscopic mechanism. Two commonly explored couplings in this context are the H
Externí odkaz:
http://arxiv.org/abs/2403.15386