Results 71 to 80 of about 279,237 (328)
Entanglement dynamics in presence of diversity under decohering environments [PDF]
, 2010 We study the evolution of entanglement of a pair of coupled, non-resonant harmonic oscillators in contact with an environment. For both the cases of a common bath and of two separate baths for each of the oscillators, a full master equation is provided ...
C. W. Gardiner +8 more
core +3 more sources
Coupled oscillators, entangled oscillators, and Lorentz-covariant harmonic oscillators [PDF]
Journal of Optics B: Quantum and Semiclassical Optics, 2005 Typos ...
Young S. Kim, Marilyn E. Noz
openaire +3 more sources
Symmetry Enhanced Unconventional Spin Current Anisotropy in a Collinear Antiferromagnet
Advanced Functional Materials, EarlyView.Spin‐orbit torques (SOTs) are investigated in epitaxial FeSn, a topological antiferromagnet with kagome lattice symmetry. Combining experimental and theoretical approaches, the study identifies a six‐fold conventional damping‐like spin‐orbit torque (DL SOT), along with the coexistence of both six‐fold and uniaxial unconventional field‐like torque (FL ...
Pankhuri Gupta +10 more
wiley +1 more source
Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation
Advanced Functional Materials, EarlyView.A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng +7 more
wiley +1 more source
Free Electron Laser High Gain Equation and Harmonic Generation
Applied Sciences, 2020 The FEL integral equation is reviewed here and is studied under different contexts, accounting for diverse physical regimes. We include higher order harmonics and saturation effects, and explain the origin of scaling relations, widely exploited to ...
Giuseppe Dattoli +3 more
doaj +1 more source
Cu2O/Cu Chiral Catalysts for Highly Selective Solar‐Assisted CO2‐to‐CO Electroreduction
Advanced Functional Materials, EarlyView.To address the poor target‐product selectivity of the eCO2RR, breakthrough approaches based on the chiral‐induced spin selectivity phenomenon enhance the Faradaic efficiency (FE) for target hydrocarbons, such as CO. To induce this spin polarization strategy in Cu2O/Cu catalysts, it is proposed using amine‐based intermediate organic molecules with ...
Hyungsoo Lee +13 more
wiley +1 more source
Sensors, 2020 This research introduces a new multifunction biquad filter based on voltage mode (VM) current-feedback operational amplifier (CFOA) and a fully uncoupled quadrature oscillator (QO) based on the proposed VM multifunction biquad filter.
San-Fu Wang +3 more
doaj +1 more source
A note on analyzing the stability of oscillator Ising machines
Electronics Letters, 2023 The rich non‐linear dynamics of the coupled oscillators (under second harmonic injection) can be leveraged to solve computationally hard problems in combinatorial optimization such as finding the ground state of the Ising Hamiltonian. While prior work on
Mohammad Khairul Bashar +2 more
doaj +1 more source
The double Caldeira-Leggett model: Derivation and solutions of the master equations, reservoir-induced interactions and decoherence [PDF]
, 2009 In this paper we analyze the double Caldeira-Leggett model: the path integral approach to two interacting dissipative harmonic oscillators. Assuming a general form of the interaction between the oscillators, we consider two different situations: i) when ...
A. Cacheffo +64 more
core +1 more source