Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Zheng-Yu Weng"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013109 (2024)
We examine the dynamical magnetic response in a two-component resonating-valence-bond (RVB) description of the doped Mott insulator. The half-filled antiferromagnetic phase described by the Schwinger-boson mean-field theory will evolve into a bosonic
Externí odkaz:
https://doaj.org/article/73e57b7f4a334849bc4f4e440e445c6c
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011062 (2022)
A single-hole ground state Ansatz for the two-dimensional t-J model has been recently studied by the variational Monte Carlo (VMC) method. Such a doped hole behaves like a “twisted” non-Landau quasiparticle characterized by an emergent quantum nu
Externí odkaz:
https://doaj.org/article/c0b8121a8d0b407b99c8e7f0b753e05a
Publikováno v:
Nuclear Physics B, Vol 903, Iss C, Pp 51-77 (2016)
Injecting a single hole into a one-dimensional Heisenberg spin chain is probably the simplest case of doping a Mott insulator. The motion of such a single hole will generally induce a many-body phase shift, which can be identified by an exact sign st
Externí odkaz:
https://doaj.org/article/a5075d0683cd4d78a6e499cef82eca45
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033007 (2020)
How the ground-state nature can be dramatically changed by the distinct underlying spin correlation is a central issue of doped Mott insulators. The two-leg XXZ ladder provides a prototypical spin background, which can be tuned from a long-range Née
Externí odkaz:
https://doaj.org/article/887b3558d0294a529f165f5d491d41e9
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 022047 (2020)
We investigate the ground state properties of the spin S=1 Kitaev honeycomb model under a magnetic field based on the density matrix renormalization group (DMRG) calculation. With the time-reversal symmetry breaking due to the magnetic field, a gappe
Externí odkaz:
https://doaj.org/article/40e063a83cb54636ade126d4b8598ad4
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023398 (2020)
We present a phenomenological Green's function to characterize the superconducting and pseudogap phases of the cuprates based on a microscopic theory of doped Mott insulators. In this framework, the “Fermi-arc” and “kink” phenomena observed b
Externí odkaz:
https://doaj.org/article/d574f7b0251747e586e288946a218095
Publikováno v:
New Journal of Physics, Vol 16, Iss 8, p 083039 (2014)
In this paper, we try to understand the pseudogap phenomenon observed in the cuprate superconductor through a model study. Specifically, we explore the so-called low-temperature pseudogap state by turning off the superconducting (SC) off diagonal lon
Externí odkaz:
https://doaj.org/article/407fa6b5631548849f407b062dccfddf
Autor:
Yi-Zhuang You, Zheng-Yu Weng
Publikováno v:
New Journal of Physics, Vol 16, Iss 2, p 023001 (2014)
We present a two-fluid description for iron-based superconductors, which contains an itinerant electron Fermi-liquid and a local moment spin-liquid, coupled together via an effective Hund's rule interaction. We examine the low-energy collective behav
Externí odkaz:
https://doaj.org/article/73f5e8e28aba4b859ad22ba13dfb4cc6
Autor:
Zheng-Yu Weng, 翁正宇
98
This research focuses on the effects of the opening, obstacles, and water mist in the backdraft scenarios. Through the larger opening, the more entrained air causes fast backdraft scenarios, but builds smaller pressure in the tests. The tempe
This research focuses on the effects of the opening, obstacles, and water mist in the backdraft scenarios. Through the larger opening, the more entrained air causes fast backdraft scenarios, but builds smaller pressure in the tests. The tempe
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/wery5y
Publikováno v:
Physical Review B. 107
We examine a wavefunction ansatz in which a doped hole can experience a quantum transition from a charge $+e$ Landau quasiparticle to a neutral spinon as a function of the underlying spin-spin correlation. As shown variationally, such a wavefunction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::85b45b5ea744f1789b6934c970b19212
https://doi.org/10.1103/physrevb.107.085112
https://doi.org/10.1103/physrevb.107.085112