Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Zhao-Yun Zeng"'
Publikováno v:
Results in Physics, Vol 56, Iss , Pp 107211- (2024)
In this work we demonstrate how the current phase transition of atomic Bose–Einstein condensates in a toroidal trap can be controlled by applying a zero-mean oscillatory driving field. Here, the current phase transition means that the long-time ave
Externí odkaz:
https://doaj.org/article/9b611f76cce247e59461bfc3dbd10dc1
Autor:
Hongzheng Wu, Xin Yan, Changwei Fan, Baiyuan Yang, Jinpeng Xiao, Zhao-Yun Zeng, Yajiang Chen, Xiaobing Luo
Publikováno v:
New Journal of Physics, Vol 26, Iss 4, p 043020 (2024)
We theoretically study the tunneling dynamics of two interacting spin–orbit-coupled (SOC) atoms trapped in a periodically perturbed double-well potential. We find that the phenomenon of coherent destruction of tunneling (CDT) can exist only for cer
Externí odkaz:
https://doaj.org/article/9a7c6550b767400c9cee7f934d200638
Autor:
Xianchao Le, Zhao-Yun Zeng, Baiyuan Yang, Yunrong Luo, Jinpeng Xiao, Lei Li, Lisheng Wang, Yajiang Chen, Ai-Xi Chen, Xiaobing Luo
Publikováno v:
Results in Physics, Vol 41, Iss , Pp 105903- (2022)
In this paper, we present a rigorous analysis of symmetry and underlying physics of the nonlinear two-mode system driven by a harmonic mixing field, by means of multiple scale asymptotic analysis method. The effective description in the framework of
Externí odkaz:
https://doaj.org/article/329f5a224a3c43d6a132cb3105becaa7
Autor:
Zhao-Yun Zeng, Lin Hu
Publikováno v:
Boundary Value Problems, Vol 2019, Iss 1, Pp 1-17 (2019)
Abstract We consider the connection problem of the second nonlinear differential equation 1 Φ″(x)=(Φ′2(x)−1)cotΦ(x)+1x(1−Φ′(x)) $$\begin{aligned} \varPhi''(x)= \bigl( \varPhi^{\prime2}(x)-1 \bigr)\cot\varPhi(x)+\frac{1}{x} \bigl(1- \var
Externí odkaz:
https://doaj.org/article/63e3c1492e1747bd8b719af91e2b748c
Publikováno v:
New Journal of Physics, Vol 22, Iss 9, p 093041 (2020)
In this paper, we study how to apply a periodic driving field to control stable spin tunneling in a non-Hermitian spin–orbit (SO) coupled bosonic double-well system. By means of a high-frequency approximation, we obtain the analytical Floquet solut
Externí odkaz:
https://doaj.org/article/d0d7eb7fd68b4a8cacd63564eed8a500
Autor:
Wen-Gao Long, Zhao-Yun Zeng
Publikováno v:
Constructive Approximation. 55:861-889
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee71204b71971f9ef974a2bbf04c3ece
https://doi.org/10.1007/s00365-022-09571-8
https://doi.org/10.1007/s00365-022-09571-8
Autor:
Jia Tang, Zhou Hu, Zhao-Yun Zeng, Jinpeng Xiao, Lei Li, Yajiang Chen, Ai-Xi Chen, Xiaobing Luo
In this paper, we investigate the spin and tunneling dynamics of a spin-orbit-coupled noninteracting Bose-Einstein condensate in a periodically driven non-Hermitian double-well potential. Under high-frequency driving, we obtain the effective time-ave
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a66ef19882d0b53183c835019703cf01
Autor:
Zhao-Yun Zeng, Jinpeng Xiao, Baiyuan Yang, Lei Li, Xiaobing Luo, Zhou Hu, Yunrong Luo, Aixi Chen
Publikováno v:
Physical Review A. 103
In this paper, we show that for sufficiently strong atomic interactions, there exist analytical solutions of current-carrying nonlinear Bloch states at the Brillouin zone edge to the model of spin-orbit-coupled Bose-Einstein condensates (BECs) with s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2d92b7ccb1d7f5969535ce77f208ce41
https://doi.org/10.1103/physreva.103.063324
https://doi.org/10.1103/physreva.103.063324
Autor:
Zhao-Yun Zeng, Xiaobing Luo, Jinpeng Xiao, Lei Li, Yu Guo, Aixi Chen, Chao Kong, Baiyuan Yang
Publikováno v:
Physical Review A. 103
We theoretically explore the tunneling dynamics for the tight-binding (TB) model of a single spin-orbit-coupled atom trapped in an optical lattice subjected to lattice shaking and to time-periodic Zeeman field. By means of analytical and numerical me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54a4fd1da34e99c8d2c6119005050626
https://doi.org/10.1103/physreva.103.043315
https://doi.org/10.1103/physreva.103.043315
We find a different mechanism for suppression of decay in an open one-dimensional lattice system, which originates from a dark Floquet state, a sink state to which the system is asymptotically driven, whose overall probability is determined only by t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e4e54547d447375d009b90b8f5c9f68
http://arxiv.org/abs/2005.04594
http://arxiv.org/abs/2005.04594