Results 91 to 100 of about 12,012,323 (242)
Advanced Photonics Research, Volume 7, Issue 9, September 2026.A switchable terahertz polarization conversion metasurface is demonstrated, utilizing the insulator‐to‐metal phase transition to achieve binary functionality within a single device. By toggling between material states, the metasurface provides high‐performance linear‐to‐circular (LTC) conversion in the insulating phase and linear‐to‐linear (LTL) cross ...
Shobit Agarwal +5 more
wiley +1 more source
Floquet Theory for Discontinuously Supported Waveguides
Modelling and Simulation in Engineering, 2016 We apply Floquet theory of periodic coefficient second-order ODEs to an elastic waveguide. The waveguide is modeled as a uniform elastic string periodically supported by a discontinuous Winkler elastic foundation and, as a result, a Hill equation is ...
A. Sorzia
doaj +1 more source
Hydrodynamic Theory of the Connected Spectral form Factor
Physical Review X, 2022 One manifestation of quantum chaos is a random-matrix-like fine-grained energy spectrum. Prior to the inverse level spacing time, random matrix theory predicts a “ramp” of increasing variance in the connected part of the spectral form factor. However, in
Michael Winer, Brian Swingle
doaj +1 more source
Lattice Resonances in Periodic Arrays of Time‐Modulated Scatterers
Laser &Photonics Reviews, Volume 20, Issue 17, 3 September 2026.This work explores how periodic time modulation alters the collective optical behavior of periodic arrays of scatterers, shedding light on the critical role of collective effects in time‐varying photonic systems and unveiling new opportunities for amplification, active control, and nonreciprocal functionalities.
María Blanco de Paz +3 more
wiley +1 more source
Floquet theory and economic dynamics II
, 2015 Floquet theory is an appropriate tool for studying ordinary linear recurrence and differential equations with periodic coefficients, and is a generalization of the theory for constant coefficients.
Heijman, W.J.M. +2 more
core +1 more source
High-resolution spectroscopy of a quantum dot driven bichromatically by two strong coherent fields
Physical Review Research, 2021 We present spectroscopic experiments and theory of a quantum dot driven bichromatically by two strong coherent lasers. In particular, we explore the regime where the drive strengths are substantial enough to merit a general nonperturbative analysis ...
Chris Gustin +7 more
doaj +1 more source
Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.Nonlinear photocurrents provide broadband spectroscopic access to quantum materials from terahertz to optical frequencies. Their sensitivity to spin, orbital, chiral, topological, and quantum‐geometric properties enables insights across ferroelectrics, magnetic and two‐dimensional materials, moiré heterostructures, topological flat bands, and light ...
Kurosch Mehrgan +2 more
wiley +1 more source
Finite‐Time Protocols Stabilize Charging in Noisy Ising Quantum Batteries
Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.A transverse‐field quantum Ising chain is charged as a quantum battery using finite‐time ramps, which suppress energy oscillations and stabilize charging compared to sudden quenches. When time‐correlated noise is introduced, the outcome depends entirely on the protocol: noise can either boost stored energy or improve efficiency, never both ...
Riccardo Grazi +3 more
wiley +1 more source
Floquet Theory and Applications
, 2010 This project is at the interface between Analysis, Natural Sciences and Modeling Theory. It deals with Floquet Theory (also re ered to as Floquet-Lyapunov theory) which is the main tool of the theory of periodic ordinary di erential systems of the form ...
Ebengne, Kouengoua Rosine
core +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