非厄米诱导序
Non-Hermitian Disorder-induced Topological insulatorsXiwang LuoChuanwei ZhangAmerican Physical Society
C. Non-Hermitian Weyl physics in topological insulator ferromagnet junctions. Phys. Rev. Res. 1, 012003(R) (2019). Article Google Scholar Black-Schaffer, A. M., Balatsky, A. V. & Fransson, J. Filling of magnetic-impurity-induced gap in topological insulators by potential scattering. ...
In Eq. (3), one can see both the intrinsic Berry phase in the Hermitian limit (i.e., \(\varphi _0/2\)) and the non-Hermitian-induced geometric phase. Consequently, instead of being quantized, the Berry phase in each band becomes continuously varying due to the non-Hermitian-induced ...
This review presents an overview of the accidental-degeneracy-induced Dirac-like cones at the center of the Brillouin zone in both photonic and phononic structures, including the fundamental physics, effective-medium description and experimental demonstration, as well as current challenges and future ...
By exploiting the properties of such non-Hermitian degeneracies, we show that the rotation-induced frequency splitting becomes ... J Ren,H Hodaei,G Harari,... - 《Optics Letters》 被引量: 13发表: 2017年 Parity-time symmetry meets photonics: A new twist in non-Hermitian optics Together ...
Spectra of non-hermitian quantum spin chains describing boundary induced phase transitions The spectrum of the non-Hermitian asymmetric XXZ-chain with additional non-diagonal boundary terms is studied. The lowest-lying eigenvalues are determined ... U Bilstein,B Wehefritz - 《Journal of Physics A ...
Exceptional points associated with non-Hermitian operators, i.e. operators being non-Hermitian for real parameter values, are investigated. The specific characteristics of the eigenfunctions at the exceptional point are worked out. Within the domain of real parameters the exceptional points are the poin...
题目:Quantum Non-Hermitian Phenomena with Open Baths | 北京大学量子材料科学中心 时间:2024-04-17 15:00 报告人:胡颖 山西大学 主办方:北京大学量子材料科学中心 直播链接:蔻享学术摘要:While enchanting non-Hermitian properties unattainable in Hermitian systems are widely revealed, genuine quantum non-Hermitia...
It is shown that the degree and type of such an instability are controlled by the environment-induced anti-Hermitian terms in Hamiltonians. Using the quantum-statistical approach for non-Hermitian Hamiltonians and related non-linear master equation, we derive the equations that are necessary to ...