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We present an original undergraduate level compilation for the physics of electromechanical systems with special attention to power flow. An approach based on energy considerations is presented that is specially suited to compute the…

Physics Education · Physics 2016-03-28 J. M. Diaz de la Cruz

In this paper, we propose and analyze a waveguide-integrated interferometric sensor in which interference occurs between two plasmonic modes propagating in a single plasmonic waveguide. For the purpose of sensing, the vertical plasmonic…

Optics · Physics 2025-02-04 Jacek Gosciniak , Ryszard Piramidowicz

The recent experimental observation of a metal-insulator transition in two dimensions prompts a re-examination of the theory of disordered interacting systems. We argue that the existing theory permits the existence of a metallic phase and…

Condensed Matter · Physics 2009-10-31 C. Castellani , C. Di Castro , P. A. Lee

Optical phase shifters are extensively used in integrated optics not only for telecom and datacom applications, but also for sensors and quantum computing. While various active solutions have been demonstrated, progress in passive phase…

The metering of gas-liquid flows is difficult due to the non-linear relationship between flow regimes and fluid properties, flow orientation, channel geometry, etc. In fact, a majority of commercial multiphase flow meters have a low…

Fluid Dynamics · Physics 2020-05-26 Akshay J. Dave , Annalisa Manera

Efficient mixing and pumping of liquids at the microscale is a technology that is still to be optimized. The combination of an AC electric field with a small temperature gradient leads to a strong electro-thermal flow that can be used for…

Fluid Dynamics · Physics 2024-03-18 Carlos David González Gómez , Raúl A. Rica , Emilio Ruiz-Reina

We develop a characterization method of electroconvection structures in a planar nematic liquid crystal layer by a study of the electric current transport. Because the applied potential difference has a sinusoidal time dependence, we define…

patt-sol · Physics 2007-05-23 J. T. Gleeson , N. Gheorghiu , E. Plaut

We present simulations of an imaging mechanism that reveals the trajectories of electrons in a two-dimensional electron gas (2DEG), as well as simulations of the electron flow in zero and small magnetic fields. The end goal of this work is…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Katherine E. Aidala , Robert E. Parrott , E. J. Heller , R. M. Westervelt

It is shown that ac resistometry can serve as an effective tool for the detection of phase transitions, such as spin reorientation or premartensitic phase transitions, which generally are not disclosed by dc resistivity measurement.…

Materials Science · Physics 2009-11-10 V. V. Khovailo , T. Abe , T. Takagi

Electrocapillary-driven two-phase flows in a confined configuration of a classical experiment of Melcher and Taylor are studied. The computed streamlines of the flow of the heavier dielectric liquid (corn oil) qualitatively represents the…

Fluid Dynamics · Physics 2023-11-27 Alexander Yu. Gelfgat Gerrit Maik Horstmann

Heat and momentum transfer of low-Prandtl-number fluid ($Pr=0.029$) in a closed rectangular cavity ($100\times60\times10$ mm$^3$) heated at one side and cooled at the opposite side are analyzed. The electromagnetic forces into the liquid…

Fluid Dynamics · Physics 2022-03-17 Evgeniy Shvydkiy , Ivan Smolyanov , Egbert Baake

Weak connections between superconductors or superfluids can differ from classical links due to quantum coherence, which allows flow without resistance. Transport properties through such weak links can be described with a single function,…

Quantum Gases · Physics 2014-10-02 S. Eckel , F. Jendrzejewski , A. Kumar , C. J. Lobb , G. K. Campbell

Recently, nonreciprocal phase shifters have attracted a surge of interest thanks to the advent of nonreciprocal electromagnetic systems, such as nonreciprocal metasurfaces, nonreciprocal-beam antennas, and invisibility cloaks. To overcome…

Applied Physics · Physics 2022-10-25 Sajjad Taravati , George V. Eleftheriades

Collective modes in two-dimensional electron fluids show an interesting response to a background carrier flow. Surface plasmons propagating on top of a flowing Fermi liquid acquire a non-reciprocal character manifest in a $\pm k$ asymmetry…

Mesoscale and Nanoscale Physics · Physics 2020-01-01 Haoyang Gao , Zhiyu Dong , Leonid Levitov

A model of vesicle electrodeformation is described which obtains a parametrized vesicle shape by minimizing the sum of the membrane bending energy and the energy due to the electric field. Both the vesicle membrane and the aqueous media…

Biological Physics · Physics 2010-08-23 Primoz Peterlin

We analyze the behavior of the superconducting-fluctuations contribution to diamagnetism and conductivity in a model system having current-current interactions. We show that in proximity to a Mott-insulating phase one recovers an overall…

Superconductivity · Physics 2012-01-10 L. Fanfarillo , L. Benfatto , C. Castellani

Liquid metal batteries (LMBs) were recently proposed as cheap large scale energy storage. Such devices are urgently required for balancing highly fluctuating renewable energy sources. During discharge, intermetallic phases tend to form in…

Applied Physics · Physics 2018-07-26 Norbert Weber , Michael Nimtz , Paolo Personnettaz , Alejandro Salas , Tom Weier

We report the observation of a metal-insulator transition in a two-dimensional electron gas in silicon. By applying substrate bias, we have varied the mobility of our samples, and observed the creation of the metallic phase when the…

Strongly Correlated Electrons · Physics 2008-02-03 Dragana Popovic , A. B. Fowler , S. Washburn

In this article, we have developed a computational model to determine the droplet formation regime and its transition in a square microfluidic flow-focusing device that eventually dictate the droplet shape, size, and its formation…

Fluid Dynamics · Physics 2025-10-28 Somasekhara Goud Sontti , Arnab Atta

We examine the fluid flow forced by precession of a rotating cylindrical container using numerical simulations and experimental flow measurements with ultrasonic Doppler velocimetry (UDV). The analysis is based on the decomposition of the…