Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Yi-Cai Zhang"'
Autor:
Yi-Cai Zhang
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract In our previous work, the concept of critical region in a generalized Aubry–André model (Ganeshan–Pixley–Das Sarma’s model) has been established. In this work, we find that the critical region can be realized in a one-dimensional fl
Externí odkaz:
https://doaj.org/article/65114afca80e4ffe9ffc717c50869935
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract We investigate the effects of disorder and shielding on quantum transports in a two dimensional system with all-to-all long range hopping. In the weak disorder, cooperative shielding manifests itself as perfect conducting channels identical
Externí odkaz:
https://doaj.org/article/cc76c7f819144f988f785f7ee749e282
Autor:
Yi-Cai Zhang, Shizhong Zhang
Publikováno v:
New Journal of Physics, Vol 26, Iss 10, p 103044 (2024)
In this paper, we develop an appropriate set of hydrodynamic equations for a U(N) invariant superfluid that couple the dynamics of superflow and magnetization. In the special case when both the superfluid and normal velocities are zero, the hydrodyna
Externí odkaz:
https://doaj.org/article/af135749665944a2a65d660df3866283
Autor:
Yi-Cai Zhang
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract In this work, we investigate the bound states in the continuum (BIC) of a one-dimensional spin-1 flat band system. It is found that, when the potential is sufficiently strong, there exists an effective attractive potential well surrounded by
Externí odkaz:
https://doaj.org/article/6ecb014730a44a89bc263cdd64236164
Autor:
Yi-Cai Zhang
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract In this work, a Josephson relation is generalized to a multi-component fermion superfluid. Superfluid density is expressed through a two-particle Green function for pairing states. When the system has only one gapless collective excitation m
Externí odkaz:
https://doaj.org/article/be6630bdfdf146c882bd312568288817
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
Abstract The superfluid properties of attractive Hubbard model in dice lattice are investigated. It is found that three superfluid order parameters increase as the interaction increases. When the filling factor falls into the flat band, due to the in
Externí odkaz:
https://doaj.org/article/f53df59bd4b0470c91e08fb3838e6325
Publikováno v:
IEEE Access, Vol 7, Pp 168798-168804 (2019)
In this paper, an extended mean-field lattice hydrodynamic model is proposed which considers the average effect of multi-lattices interaction. By stability analysis, the linear stability criterion of the proposed model is given. Through nonlinear ana
Externí odkaz:
https://doaj.org/article/17395f80fb1f4f30ba4dbe97d5c56e9d
Autor:
Chengdong He, Zejian Ren, Bo Song, Entong Zhao, Jeongwon Lee, Yi-Cai Zhang, Shizhong Zhang, Gyu-Boong Jo
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012028 (2020)
We measure collective excitations of a harmonically trapped two-dimensional (2D) SU(N) Fermi gas of ^{173}Yb confined to a stack of layers formed by a one-dimensional optical lattice. Quadrupole and breathing modes are excited and monitored in the co
Externí odkaz:
https://doaj.org/article/6fab7f5c7bae476abd4d4d514a029389
Autor:
Hui-Hui Wang, Si-Si Wang, Yan Yu, Biao Zhang, Yi-Ming Dai, Hao-Can Chen, Yi-Cai Zhang, Yan-Yang Zhang
A one-dimensional lattice model with mosaic quasiperiodic potential is found to exhibit interesting localization properties, e.g., clear mobility edges [Y. Wang et al., Phys. Rev. Lett. \textbf{125}, 196604 (2020)]. We generalize this mosaic quasiper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6ddc830bd2d6118f6ee3e47ebe805e9
http://arxiv.org/abs/2301.06279
http://arxiv.org/abs/2301.06279
Autor:
Yi-Cai Zhang
In this work, we investigate the bound states in a one-dimensional spin-1 flat band system with a Coulomb-like potential of type III, which has a unique non-vanishing matrix element in basis $|1\rangle$. It is found that, for such a kind of potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a6587a602c917e0ad6bcda396aaf11b