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181 papers · 1 filter
Ellipticity-Controlled Bright-Dark Coherence Transition in Monolayer WSe2
Kang Lan, Xiangji Cai, Zhongxiao Man +4
The generation of exciton valley coherence typically requires linearly polarized (LP) light as an external coherent drive, whereas circularly polarized (CP) light fails to induce c…
An Unusual Dresselhaus Spin-Orbit Contribution of Even Order in Momentum
Hao Yang, Wei Wang, Gerson J. Ferreira +3
The spin-orbit (SO) coupling is conventionally known to manifest as \emph{odd} functions of momentum. Here, through both model calculations and symmetry analysis along with the met…
Finite Thickness Effects on Metallization Vs. Chiral Majorana Fermions
Xin Yue, Guo-Jian Qiao, C. P. Sun
The search for chiral Majorana fermions in quantum anomalous Hall insulator/\textit{s}-wave superconductor heterostructures has attracted intense interest, yet remains controversia…
Photonic chiral state transfer near the Liouvillian exceptional point
Huixia Gao, Konghao Sun, Dengke Qu +4
As branch-point singularities of non-Hermitian matrices, the exceptional points (EPs) exhibit unique spectral topology and criticality, with intriguing dynamic consequences in non-…
Spin-polarized scanning tunneling microscopy measurement scheme for determining the quantum geometric tensor
Shu-Hui Zhang, Jin Yang, Ding-Fu Shao +4
The quantum geometric tensor (QGT) embodies the geometry of the eigenstates of a system's Hamiltonian, and its full characterization across diverse quantum systems is essential. Ho…
Quasiperiodic Quadrupole Insulators
Raul Liquito, Miguel Gonçalves, Eduardo V. Castro
Higher-order topological insulators are an intriguing new family of topological states that host lower-dimensional boundary states. Concurrently, quasiperiodic systems have garnere…