Results 91 to 100 of about 107,786 (317)

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Generalized Fluctuation-Dissipation Theorem for Non-equilibrium Spatially Extended Systems

Frontiers in Physics, 2020
The fluctuation-dissipation theorem (FDT) connecting the response of the system to external perturbations with the fluctuations at thermodynamic equilibrium is a central result in statistical physics. There has been effort devoted to extending the FDT in
Wei Wu, Jin Wang
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Experiments in Stochastic Thermodynamics: Short History and Perspectives

Physical Review X, 2017
We summarize in this article the experiments which have been performed to test the theoretical findings in stochastic thermodynamics such as fluctuation theorem, Jarzynski equality, stochastic entropy, out-of-equilibrium fluctuation dissipation theorem ...
S. Ciliberto
doaj   +1 more source

Can quantum regression theorem be reconciled with quantum fluctuation dissipation theorem ?

, 2002
In the attempt to derive the regression theorem from the fluctuation dissipation theorem several authors claim the violation of the former theorem in the quantum case.
Gruzinskis, V., Reggiani, L., Shiktorov, P., Starikov, E.   +3 more
core   +1 more source

Fluctuation theorem for constrained equilibrium systems [PDF]

, 2006
We discuss the fluctuation properties of equilibrium chaotic systems with constraints such as iso-kinetic and Nos\'e-Hoover thermostats. Although the dynamics of these systems does not typically preserve phase-space volumes, the average phase-space ...
A. Schild, A. Staruszkiewicz, C. M. Anderson, D. Hestenes, F. Rohrlich, J. D. Jackson, J. L. Anderson, Jayme De Luca, M. Peshkin, N. Bohr, N. Bohr, R. E. Bellman, Sin-itiro Tomonaga, W. M. Oliva   +13 more
core   +1 more source

Fluctuation theorems for quantum processes [PDF]

Physical Review E, 2013
20 pages, 9 figures.
Albash, Tameem, Lidar, Daniel A., Marvian, Milad, Zanardi, Paolo   +3 more
openaire   +3 more sources

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

On the interpretation and significance of the fluctuation–dissipation theorem in infrared spectroscopy

Results in Optics
In this paper we revisit the classical fluctuation–dissipation theorem with derivations and interpretations based on quantum electrodynamics (QED).
Sven Nordebo
doaj   +1 more source

An integral fluctuation theorem for systems with unidirectional transitions

, 2014
The fluctuations of a Markovian jump process with one or more unidirectional transitions, where $R_{ij} >0$ but $R_{ji} =0$, are studied. We find that such systems satisfy an integral fluctuation theorem.
Harbola, Upendra, Rahav, Saar
core   +1 more source