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As quantum devices become more complex and the requirements on these devices become more demanding, it is crucial to be able to verify the performance of such devices in a scalable and reliable fashion. A cornerstone task in this challenge…

We present a method of optical magnetometry with parts-per-billion resolution that is able to detect biomagnetic signals generated from the human brain and heart in Earth's ambient environment. Our magnetically silent sensors measure the…

Medical Physics · Physics 2020-07-29 M. E. Limes , E. L. Foley , T. W. Kornack , S. Caliga , S. McBride , A. Braun , W. Lee , V. G. Lucivero , M. V. Romalis

In this paper we show how to obtain the Inverse-square law of the distance to the light intensity emitted from a small source in a simple, fast and with good precision way. With the aid of two smartphones, free apps and a ruler, one is able…

Extending the concept of steerability for quantum states, channel steerability is an ability to remotely control the given channel from a coherently extended party. Verification of channel steering can be understood as certifying coherence…

Quantum Physics · Physics 2020-01-29 InU Jeon , Hyunseok Jeong

The control of magnetic fields, essential for our science and technology, is currently achieved by magnetic materials with positive permeability, including ferromagnetic, paramagnetic, and diamagnetic types. Here we introduce materials with…

Materials Science · Physics 2018-03-22 Rosa Mach-Batlle , Albert Parra , Jordi Prat-Camps , Sergi Laut , Carles Navau , Alvaro Sanchez

In this Letter, we introduce a representation of the electromagnetic field for the analysis and synthesis of the full-wave scattering by a homogeneous dielectric object of arbitrary shape in terms of a set of eigenmodes independent of its…

Mesoscale and Nanoscale Physics · Physics 2016-11-15 Carlo Forestiere , and Giovanni Miano

We demonstrate how the multitude of sensors on a smartphone can be used to construct a reliable hardware fingerprint of the phone. Such a fingerprint can be used to de-anonymize mobile devices as they connect to web sites, and as a second…

Cryptography and Security · Computer Science 2014-08-08 Hristo Bojinov , Yan Michalevsky , Gabi Nakibly , Dan Boneh

The design and operation of a homemade low cost vibrating sample magnetometer is described here. The sensitivity of this instrument is better than 10-2 emu and found to be very efficient for the measurement of magnetization of most of the…

Instrumentation and Detectors · Physics 2015-05-28 S. Kundu , T. K. Nath

The objective of this study is to better understand the influence of fractures on the possibility of free convection in porous media. To this aim, we introduce a mathematical model for density driven flow in the presence of fractures, and…

Numerical Analysis · Mathematics 2024-09-06 Arash Andrea Roknian , Anna Scotti , Alessio Fumagalli

The correlation between the plasma density measured in space and the surface potential of an electrically conducting satellite body with biased electric field detectors has been recognized and used to provide density proxies. However, for…

Space Physics · Physics 2022-03-09 Forrest Mozer , Stuart Bale , Paul Kellogg , Davin Larson , Roberto Levi , Orlando Romeo

We first highlight theoretically a microfluidic configuration that allows to measure two fundamental parameters describing mass transport through a membrane: the solute permeability coefficient $\mathcal{L}_D$, and the associated reflection…

Soft Condensed Matter · Physics 2025-06-09 Julien Renaudeau , Pierre Lidon , Jean-Baptiste Salmon

A microfluidic device is constructed from PDMS with a single channel having a short section that is a thin flexible membrane, in order to investigate the complex fluid-structure interaction that arises between a flowing fluid and a…

Soft Condensed Matter · Physics 2020-07-03 Debadi Chakraborty , J. Ravi Prakash , Leslie Yeo , James Friend

This paper gives a method that maps the static magnetic field due to a system of parallel current-carrying wires to a complex function. Using this function simplifies the calculation of the magnetic field energy density and inductance per…

Classical Physics · Physics 2016-12-09 Eric Deyo

Permeability is the key parameter for quantifying fluid flow in porous rocks. Knowledge of the spatial distribution of the connected pore space allows, in principle, to predict the permeability of a rock sample. However, limitations in…

Fingerprinting is a popular indoor localization technique since it can utilize existing infrastructures (e.g., access points). However, its site survey process is a labor-intensive and time-consuming task, which limits the application of…

Networking and Internet Architecture · Computer Science 2020-09-09 Fuqiang Gu , Milad Ramezani , Kourosh Khoshelham , Xiaoping Zheng , Ruiqin Zhou , Jianga Shang

The system to include an android based underground broken wire detection which works by detecting the electromagnetic field around a live underground cable is proposed. The transmission cables undergo stress and strain as they are under the…

Signal Processing · Electrical Eng. & Systems 2021-03-16 V. Jegathesan , T. Jemima Jebaseeli , D. Jasmine David

A novel broad-band measurement method of the MI in thin films and ribbons is presented. It is based on the automated measurement of the reflection coefficient of a cell loaded with the sample. Illustrative results obtained with a permalloy…

Materials Science · Physics 2009-11-10 A. Fessant , J. Gieraltowski , C. Tannous , R. Valenzuela

A mathematical model, suitable for smartphone implementation, is presented to simulate the performance of a rainwater harvesting system equipped with a covered storage tank. This model serves to determine the optimal tank size and develop…

Systems and Control · Electrical Eng. & Systems 2024-04-23 Vikram Vyas

An analytical model is presented for a rectangular lattice of isotropic scatterers with electric and magnetic resonances. Each isotropic scatterer is formed by putting appropriately 6 $\Omega$-shaped perfectly conducting particles on the…

Optics · Physics 2009-11-07 Constantin R. Simovski , Sailing He

In this study, four different techniques are presented. 1 Rectangular waveguide measurement technique for normal microwave materials microwave properties such as permeability and permittivity. This technique removed guess parameter and…

Instrumentation and Detectors · Physics 2009-06-17 Mahmut Obol