Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Teo, Wei Xin"'
Publikováno v:
Phys. Rev. B 106, 085427 (2022)
Absolute negative mobility (ANM) in nonequilibrium systems depicts the possibility of particles propagating toward the opposite direction of an external force. We uncover in this work a phenomenon analogous to ANM regarding eigenstate localization an
Externí odkaz:
http://arxiv.org/abs/2203.07400
Publikováno v:
Physical Review B 105, L201402 (2022)
Two-dimensional (2D) laser arrays are shown to be achievable at a large scale by exploiting the interplay of higher-order topological insulator (HOTI) physics and the so-called non-Hermitian skin effect (NHSE). The higher-order topology allows for th
Externí odkaz:
http://arxiv.org/abs/2202.13622
Publikováno v:
Phys. Rev. B 103, 195414 (2021)
The non-Hermitian skin effect (NHSE) in non-Hermitian lattice systems depicts the exponential localization of eigenstates at system's boundaries. It has led to a number of counter-intuitive phenomena and challenged our understanding of bulk-boundary
Externí odkaz:
http://arxiv.org/abs/2103.04619
Publikováno v:
Phys. Rev. B 101, 205309 (2020)
For topological characterization of non-Hermitian multiband systems, Majorana's stellar representation (MSR) is applied to 1D multiband models consisting of asymmetric nearest-neighbor hopping and imaginary on-site potentials. The number of edge stat
Externí odkaz:
http://arxiv.org/abs/2002.07490