Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Xi-Xi Bao"'
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-8 (2023)
Abstract It has long been believed that skin modes are equivalent to the nontrivial point gap. However, we find that this concomitance can be broken, in that skin modes can be absent or present when the point gap is nontrivial or trivial, respectivel
Externí odkaz:
https://doaj.org/article/e9ddf7c40eed429fa107c5082ac6f16f
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123007 (2021)
The bulk boundary correspondence, which connects the topological invariant, the continuum band and energies under different boundary conditions, is the core concept in the non-Bloch band theory, in which the generalized Brillouin zone (GBZ), appearin
Externí odkaz:
https://doaj.org/article/7d4f7018110d403cbf66184e83e0c2b3
Publikováno v:
Chinese Physics B.
We propose a scheme for realizing high-fidelity topological state transfer via the topological edge states in a one-dimensional cavity-magnon system. We find that the cavity-magnon system can be mapped analytically into the generalized Su-Schrieffer-
Non-equilibrium phases of matter have attracted much attention in recent years, among which the Floquet phase is a hot point. In this work, based on the periodic driving non-Hermitian model, we reveal that the winding number calculated in the framewo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67f65d2dc8f190fb6d62f855b5860443
http://arxiv.org/abs/2203.15644
http://arxiv.org/abs/2203.15644
Publikováno v:
Chinese Physics B. 32:020301
An extended Su–Schrieffer–Heeger (SSH) model containing four periods of the hopping coefficients, called SSH4 model, is constructed to explore robust quantum state transfer. The gap state protected by the energy gap plays the role of the topologi
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 33(18)
Disorders have a rich influence on topological and localized properties. Here, we explore the effects of different type of disorders (intracell and intercell) on the non-Hermitian system. We first exhibit the phase diagram and find that the intracell
Publikováno v:
Journal of Physics: Condensed Matter. 33:465403
The asymmetrical long-range hopping amplitudes have a rich influence on the topological properties. Here, a non-Hermitian model including the long-range hopping amplitudes is constructed to explore those properties. It can be found that an extra topo
Publikováno v:
Chinese Physics Letters. 38:040302
We propose a one-dimensional optical lattice model to simulate and explore two-dimensional topological phases with ultracold atoms, considering the phases of the hopping strengths as an extra dimension. It is shown that the model exhibits nontrivial
Publikováno v:
The European Physical Journal D. 73
We theoretically investigate the single-photon router using two dipole-dipole interaction (DDI) atoms embedded in a multichannel coupled cavity arrays (CCAs). When the atoms are symmetrically coupled to the cavity, the DDI influences both the height