Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Liu, Yuhai"'
We carry out large-scale quantum Monte Carlo simulations of a candidate field theory for the onset of superconductivity in magic-angle twisted bilayer graphene. The correlated insulating state at charge neutrality spontaneously breaks U(1) Moir\'e va
Externí odkaz:
http://arxiv.org/abs/2304.02428
Autor:
Sato, Toshihiro, Wang, Zhenjiu, Liu, Yuhai, Hou, Disha, Hohenadler, Martin, Guo, Wenan, Assaad, Fakher F.
We introduce a model of Dirac fermions in 2+1 dimensions with a semimetallic, a quantum spin-Hall insulating (QSHI), and an s-wave superconducting (SSC) phase. The phase diagram features a multicritical point at which all three phases meet as well as
Externí odkaz:
http://arxiv.org/abs/2212.11395
Publikováno v:
Phys. Rev. B 106, 245117 (2022)
We study the superconductor-insulator transition (SIT) in the ground state of the attractive honeycomb Hubbard model in the presence of a staggered potential (a mass term), using a combination of unbiased computational methods, namely, exact diagonal
Externí odkaz:
http://arxiv.org/abs/2208.04474
The quantum spin Hall state can be understood in terms of spontaneous O(3) symmetry breaking. Topological skyrmion configurations of the O(3) order parameter vector carry a charge 2e, and as shown previously, when they condense, a superconducting sta
Externí odkaz:
http://arxiv.org/abs/2207.04803
Thermodynamic and Dynamical Signatures of a Quantum Spin-Hall Insulator to Superconductor Transition
Autor:
Hohenadler, Martin, Liu, Yuhai, Sato, Toshihiro, Wang, Zhenjiu, Guo, Wenan, Assaad, Fakher F.
Publikováno v:
Phys. Rev. B 106, 024509 (2022)
Thermodynamic and dynamical properties of a model of Dirac fermions with a deconfined quantum critical point (DQCP) separating an interaction-generated quantum spin-Hall insulator from an s-wave superconductor [Nature Comm.~{\bf 10}, 2658 (2019)] are
Externí odkaz:
http://arxiv.org/abs/2110.07963
Publikováno v:
In Expert Systems With Applications 1 June 2024 243
Autor:
Zhao, Jinlong, Liu, Yuhai, Xu, Lili, Sun, Lirui, Chen, Guanzhi, Wang, Hao, Zhang, Ziye, Lin, Hong, Li, Zhenxing
Publikováno v:
In Food Chemistry 15 February 2024 434
Publikováno v:
Phys. Rev. B 104, 035107 (2021)
We consider fermions on a honeycomb lattice supplemented by a spin invariant interaction that dynamically generates a quantum spin Hall insulator. This lattice model provides an instance of Gross-Neveu Heisenberg criticality, as realized for example
Externí odkaz:
http://arxiv.org/abs/2103.08434
Autor:
Wang, Zhenjiu, Liu, Yuhai, Sato, Toshihiro, Hohenadler, Martin, Wang, Chong, Guo, Wenan, Assaad, Fakher F.
Publikováno v:
Phys. Rev. Lett. 126, 205701 (2021)
A unique property of a dynamically generated quantum spin Hall state are Goldstone modes that correspond to the long-wavelength fluctuations of the spin-orbit coupling order parameter whose topological Skyrmion excitations carry charge 2$e$. Within t
Externí odkaz:
http://arxiv.org/abs/2006.13239
Autor:
Liu, Yuhai, Wang, Zhenjiu, Sato, Toshihiro, Hohenadler, Martin, Wang, Chong, Guo, Wenan, Assaad, Fakher F.
Publikováno v:
Nature Communications 10:2658(2019)
The discovery that spin-orbit coupling can generate a new state of matter in the form of quantum spin-Hall (QSH) insulators has brought topology to the forefront of condensed matter physics. While QSH states from spin-orbit coupling can be fully unde
Externí odkaz:
http://arxiv.org/abs/1811.02583