Results 91 to 100 of about 6,496,471 (236)
Floquet theory of Cooper pair pumping [PDF]
Physical Review B, 2011 In this work we derive a general formula for the charge pumped in a superconducting nanocircuit. Our expression generalizes previous results in several ways, it is applicable both in the adiabatic and in the non-adiabatic regimes and it takes into account also the effect of an external environment.
Angelo Russomanno +3 more
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Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.A spin group (SG)‐based mechanism is proposed to realize a single pair of Weyl points. PT‐symmetric nodal lines (NLs) persist under T‐breaking, protected by the combination of SG and P symmetry. When considering spin‐orbit coupling, the SG‐protected NL will split into Weyl points, which will also induce anomalous transport phenomena arising from ...
Shifeng Qian +6 more
wiley +1 more source
Physical Review X, 2020 Pumping graphene with circularly polarized light is the archetype of light-tailoring topological bands. Realizing the induced Floquet-Chern-insulator state and demonstrating clear experimental evidence for its topological nature has been a challenge, and
Michael Schüler +6 more
doaj +1 more source
A FLOQUET THEORY FOR FUNCTIONAL DIFFERENTIAL EQUATION [PDF]
Proceedings of the National Academy of Sciences, 1962 Introduction.-Let C denote the space of continuous functions from [-h, 01 into Rm, m-dimensional Euclidean spa.ce, h > 0, with the norm in C given by 111\ = max 1{(u) l, -h s, by x,(u) = x(t + u), -h s u s 0. With this notation (due to Hale4) and the above definitions, we may write the linear functional differential equation with periodic ...
openaire +2 more sources
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, Volume 36, Issue 25, 26 March 2026.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Quantum metastability in time-periodic potentials
, 2005 In this paper we investigate quantum metastability of a particle trapped in between an infinite wall and a square barrier, with either a time-periodically oscillating barrier (Model A) or bottom of the well (Model B).
Abramowitz +27 more
core +1 more source
Photo‐Reconfigurable Supercoupling Induced Transparency in On‐Chip Topological Edge State Cavities
Advanced Materials, Volume 38, Issue 13, 3 March 2026.A novel supercoupling induced transparency (SIT) is demonstrated in a valley‐Hall photonic crystal. The valley vortices enable the supercoupling between a leaky and a guided topological edge state cavity even across a distance of 4.3 wavelengths, inducing a transparency window with negligible reflection.
Wenhao Wang, Ranjan Singh
wiley +1 more source
Non-adiabatic topological spin pumping
New Journal of Physics, 2015 Based on the Floquet scattering theory, we analytically investigate the topological spin pumping for an exactly solvable model. Floquet spin Chern numbers are introduced to characterize the periodically time-dependent system. The topological spin pumping
W Y Deng +5 more
doaj +1 more source
Advanced Photonics Research, Volume 7, Issue 3, March 2026.A compact dual‐functional reflective terahertz (THz) metasurface is experimentally demonstrated. Near‐unity linear‐to‐cross polarization conversion is achieved at four resonance frequencies: 0.65, 0.80, 2.02, and 2.48 THz. Broadband linear‐to‐circular polarization conversion is realized in two bands, 0.86–1.95 THz (77% fractional bandwith, FBW) and 2 ...
Anjali Chaudhary +6 more
wiley +1 more source
On Moderate-Rayleigh-Number Convection in an Inclined Porous Layer
Fluids, 2019 We investigate the flow structure and dynamics of moderate-Rayleigh-number ( R a ) thermal convection in a two-dimensional inclined ...
Baole Wen, Gregory P. Chini
doaj +1 more source