33 citations · 64 across the 10 of their papers we have counts for
10 papers
Superconductivity near an Ising nematic quantum critical point in two dimensions
Jie Huang, Zhao-Kun Yang, Jing-Rong Wang +1
Near a two-dimensional Ising-type nematic quantum critical point, the quantum fluctuations of the nematic order parameter are coupled to the electrons, leading to non-Fermi liquid…
Reply to "Comment on `Towards exact solutions of superconducting induced by electron-phonon interaction' "
Guo-Zhu Liu, Zhao-Kun Yang, Xiao-Yin Pan +4
In a series of papers, we have proposed a non-perturbative field-theoretic approach to deal with strong electron-phonon and strong Coulomb interactions. The key ingredient of such…
Energy transfer and radiation in Hamiltonian nonlinear Klein-Gordon equations: general case
Zhen Lei, Jie Liu, Zhaojie Yang
In this paper, we consider Klein-Gordon equations with cubic nonlinearity in three spatial dimensions, which are Hamiltonian perturbations of the linear one with potential. It is a…
Theoretical study of phonon-mediated superconductivity beyond Migdal-Eliashberg approximation and Coulomb pseudopotential
Jie Huang, Zhao-Kun Yang, Xiao-Yin Pan +1
In previous theoretical studies of phonon-mediated superconductors, the electron-phonon coupling is treated by solving the Migdal-Eliashberg equations under the bare vertex approxi…
Radiation of the energy-critical wave equation with compact support
Zhen Lei, Xiao Ren, Zhaojie Yang
We prove exterior energy lower bounds for (nonradial) solutions to the energy-critical nonlinear wave equation in space dimensions , with compactly supported initial…
Energy transfer, weak resonance, and Fermi's golden rule in Hamiltonian nonlinear Klein-Gordon equations
Zhen Lei, Jie Liu, Zhaojie Yang
This paper focuses on a class of nonlinear Klein-Gordon equations in three dimensions, which are Hamiltonian perturbations of the linear Klein-Gordon equation with potential. The u…
A non-perturbative study of the interplay between electron-phonon interaction and Coulomb interaction in undoped graphene
Zhao-Kun Yang, Xiao-Yin Pan, Guo-Zhu Liu
In condensed-matter systems, electrons are subjected to two different interactions under certain conditions. Even if both interactions are weak, it is difficult to perform perturba…
Nonperturbative Dyson-Schwinger equation approach to strongly interacting Dirac fermion systems
Xiao-Yin Pan, Zhao-Kun Yang, Xin Li +1
Studying the strong correlation effects in interacting Dirac fermion systems is one of the most challenging problems in modern condensed matter physics. The long-range Coulomb inte…
Towards exact solutions for the superconducting induced by electron-phonon interaction
Guo-Zhu Liu, Zhao-Kun Yang, Xiao-Yin Pan +1
Electron-phonon interaction plays an important role in metals and can lead to superconductivity and other instabilities. Previous theoretical studies on superconductivity are large…
Effects of the Dirac cone tilt in two-dimensional Dirac semimetal
Zhao-Kun Yang, Jing-Rong Wang, Guo-Zhu Liu
Two-dimensional Dirac semimetal with tilted Dirac cone has recently attracted increasing interest. Tilt of Dirac cone can be realized in a number of materials, including deformed g…