Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Guancong Ma"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract Non-Hermitian physics has emerged as a new paradigm that profoundly changes our understanding of non-equilibrium systems, introducing novel concepts such as exceptional points, spectral topology, and non-Hermitian skin effects (NHSEs). Most
Externí odkaz:
https://doaj.org/article/2e8e54ee65e84f71857dfa9cf5ba314e
Autor:
Kin Sum Li, Yu Liu, Guancong Ma, Kwong Ip Liu, Michael Kwok-Po Ng, Haiwang Liu, Keith Wilson, Xueqing Chen, Kin San Lee, Qin Fang, Johnny M. Poon, Xu Qin, Tsz Hin Chun, Haoran Jiang
Publikováno v:
Heritage Science, Vol 12, Iss 1, Pp 1-15 (2024)
Abstract This article explores the criteria used to ascertain whether or not, and how, ancient Chinese bronze bells might form sets of musical instruments, thus clarifying their original intended use by ancient musicians. The focus is on ten bells un
Externí odkaz:
https://doaj.org/article/39953e88ebac435ea6b4fd4924a2b1a1
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)
Abstract Sound in indoor spaces forms a complex wavefield due to multiple scattering encountered by the sound. Indoor acoustic communication involving multiple sources and receivers thus inevitably suffers from cross-talks. Here, we demonstrate the i
Externí odkaz:
https://doaj.org/article/6c6ef5eaa49440baa6f23264a0edb6a1
Publikováno v:
APL Materials, Vol 12, Iss 4, Pp 041128-041128-6 (2024)
We explore the distinctive properties associated with a type-II Dirac point in a simply structured phononic crystal with a lattice deformation. This type-II Dirac point emerges at the Brillouin zone boundary, resulting from the lifting of two degener
Externí odkaz:
https://doaj.org/article/314cbea9a3d3457896bbf27215c24f31
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract As the counterpart of Hermitian nodal structures, the geometry formed by exceptional points (EPs), such as exceptional lines (ELs), entails intriguing spectral topology. We report the experimental realization of order-3 exceptional lines (EL
Externí odkaz:
https://doaj.org/article/58a7a87e12d3430c82aa70589e4ddefa
Publikováno v:
AAPPS Bulletin, Vol 33, Iss 1, Pp 1-5 (2023)
Abstract In Hermitian topological systems, topological modes (TMs) are bound to interfaces or defects of a lattice. Recent discoveries show that non-Hermitian effects can reshape the wavefunctions of the TMs and even turn them into extended modes occ
Externí odkaz:
https://doaj.org/article/55e52bcf07e84c1aa53bb4102a2bd879
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Spin-orbit acoustics is determinant to provide new perspectives and functionalities for sound manipulations. Here the authors theoretically and experimentally demonstrate acoustic spin-orbit interaction enabling chiral sound-matter interactions with
Externí odkaz:
https://doaj.org/article/0bdf54a941984de18efd324558e375be
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
Externí odkaz:
https://doaj.org/article/4ffe932126e14e96a87886633384c8b4
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023038 (2023)
The spectrum of a non-Hermitian system generically forms a two-dimensional complex Riemannian manifold with a distinct topology from the underlying parameter space. This spectral topology permits eigenvalue trajectories to braid into knots. In this p
Externí odkaz:
https://doaj.org/article/fd5b3ff46c324338b314bd3426c32d6c
Publikováno v:
Frontiers in Physics, Vol 9 (2021)
Recent developments of band topology have revealed a variety of higher-order topological insulators (HOTIs). These HOTIs are characterized by a variety of different topological invariants, making them different at a fundamental level. However, despit
Externí odkaz:
https://doaj.org/article/3b6a918d93fc46b3aa8ce78a8d5e69c8