Zobrazeno 1 - 10
of 204
pro vyhledávání: '"Shi, Junren"'
Various clathrate superhydride superconductors have been found to possess hydrogen deficiency in experimental samples, while their impacts on superconductivity are often neglected. In this study, we investigate the superconductivity of lanthanum supe
Externí odkaz:
http://arxiv.org/abs/2409.09836
Autor:
Jin, Hao, Shi, Junren
It has long been puzzling that fractional quantum Hall states in the first excited Landau level (1LL) often differ significantly from their counterparts in the lowest Landau level. We show that the dispersion of composite fermions (CFs) is a determin
Externí odkaz:
http://arxiv.org/abs/2407.10647
Autor:
Shi, Junren
Publikováno v:
Phys. Rev. Research 6, 023306 (2024)
We establish the quantum mechanics of composite fermions based on the dipole picture initially proposed by Read. It comprises three complimentary components: a wave equation for determining the wave functions of a composite fermion in ideal fractiona
Externí odkaz:
http://arxiv.org/abs/2309.00299
Autor:
Chen, Haoran, Shi, Junren
Publikováno v:
Phys. Rev. B 109, L140505 (2024)
We study superconductivity in the superionic phase of the clathrate hydride Li$_2$MgH$_{16}$, where hydrogen ions diffuse among the lattice formed by lithium and magnesium ions. By employing the stochastic path-integral approach, we non-perturbativel
Externí odkaz:
http://arxiv.org/abs/2305.04875
Autor:
Ji, Guangyue, Shi, Junren
Abstract We theoretically study the realization of quantum anomalous Hall insulator (QAHI) of composite fermions (CFs) in the twisted bilayer graphene (TBG) system. We show that the moir\'e pattern in TBG is not only able to provide a commensurate mo
Externí odkaz:
http://arxiv.org/abs/2212.13200
Autor:
Chen, Haoran, Shi, Junren
We develop a stochastic path-integral approach for predicting the superconducting transition temperatures of anharmonic solids. By defining generalized Bloch basis, we generalize the formalism of the stochastic path-integral approach, which is origin
Externí odkaz:
http://arxiv.org/abs/2205.07247
We propose a non-perturbative $ab$ $initio$ approach to calculate the electrical conductivity of a liquid metal. Our approach is based on the Kubo formula and the theory of electron-phonon coupling (EPC), and unlike the conventional empirical approac
Externí odkaz:
http://arxiv.org/abs/2201.06103
Publikováno v:
Phys. Rev. B 104, 184516 (2021)
We present a first-principles implementation of the stochastic path-integral approach proposed by Liu et al. [H. Liu, Y. Yuan, D. Liu, X.-Z. Li, and J. Shi, Phys. Rev. Research 2, 013340 (2020)] for estimating the superconducting transition temperatu
Externí odkaz:
http://arxiv.org/abs/2108.00653
Autor:
Ji, Guangyue, Shi, Junren
Publikováno v:
Phys. Rev. Research 3, 043055 (2021)
Composite fermions (CFs) are the particles underlying the novel phenomena observed in partially filled Landau levels. Both microscopic wave functions and semi-classical dynamics suggest that a CF is a dipole consisting of an electron and a double $2h
Externí odkaz:
http://arxiv.org/abs/2106.06441
Autor:
Ji, Guangyue, Shi, Junren
Publikováno v:
Phys. Rev. B 101, 235301 (2020)
We propose an experiment to test the uniform-Berry-curvature picture of composite fermions. We show that the asymmetry of geometrical resonances observed in a periodically modulated composite fermion system can be explained with the uniform-Berry-cur
Externí odkaz:
http://arxiv.org/abs/2001.02409