Results 51 to 60 of about 131,468 (231)

Chirality in Optical Trapping and Optical Binding

open access: yesPhotonics, 2015
Optical trapping is a well-established technique that is increasingly used on biological substances and nanostructures. Chirality, the property of objects that differ from their mirror image, is also of significance in such fields, and a subject of much ...
David S. Bradshaw   +3 more
doaj   +1 more source

A Geometric Model in 3+1D Space-Time for Electrodynamic Phenomena

open access: yesUniverse, 2022
With the idea to find geometric formulations of particle physics we investigate the predictions of a three-dimensional generalization of the Sine-Gordon model, very close to the Skyrme model and to the Wu-Yang description of Dirac monopoles.
Manfried Faber
doaj   +1 more source

Some Considerations About Podolsky-Axionic Electrodynamics

open access: yes, 2011
For a Podolsky-axionic electrodynamics, we compute the interaction potential within the structure of the gauge-invariant but path-dependent variables formalism.
Gaete, Patricio
core   +1 more source

Current Switching of Topological Spin Chirality in the van der Waals Antiferromagnet Co1/3TaS2

open access: yesAdvanced Materials, EarlyView.
Spin chirality plays a central role in quantum magnetism, governing spin winding and generating real‐space Berry phases. We propose the intriguing concept of current‐switching spin chirality and demonstrate it via unconventional intrinsic self‐spin‐orbit‐torque in pristine Co1/3TaS2, purely by electrical current and with high energy efficiency.
Kai‐Xuan Zhang   +3 more
wiley   +1 more source

Surface-response functions obtained from equilibrium electron-density profiles

open access: yesNanophotonics, 2021
Surface-response functions are one of the most promising routes for bridging the gap between fully quantum-mechanical calculations and phenomenological models in quantum nanoplasmonics.
Mortensen N. Asger   +6 more
doaj   +1 more source

High‐Throughput Screening of REBCO Superconducting Thin Films Fabricated Via Combinatorial Inkjet Printing and TLAG Process

open access: yesAdvanced Materials Technologies, EarlyView.
A methodological framework is presented for combinatorial REBCO thin films fabricated by drop‐on‐demand inkjet printing with controlled Rare Earth composition gradients. Automated, synchrotron‐based, and local characterization techniques produce comprehensive property maps that correlate composition and TLAG process parameters with superconducting ...
Emma Ghiara   +15 more
wiley   +1 more source

A Novel Simple Format of Maxwell’s Equations in SI Units

open access: yesIEEE Access, 2021
In the International System of Units (SI), distinct physical dimensions were assigned to the electric ( $E$ ) and magnetic ( $H$ ) fields as volt-per-meter and ampere-per-meter, respectively. To save the dimensional balance in the standard Maxwell’
Oleg A. Tretyakov, Fatih Erden
doaj   +1 more source

Bekenstein Inequalities and Nonlinear Electrodynamics

open access: yes, 2017
Bekenstein and Mayo proposed a generalised bound for the entropy, which implies some inequalities between the charge, energy, angular momentum, and the size of the macroscopic system.
Falciano, F. T., Peñafiel, M. L.
core   +1 more source

Photonics of Topological Magnetic Textures

open access: yesAdvanced Optical Materials, EarlyView.
Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri   +6 more
wiley   +1 more source

Multi-Channel PWM Heater Control Chip in 0.18 μm High-Voltage CMOS for a Quantum Simulator

open access: yesIEEE Photonics Journal
A circuit to control heating resistors with a pulse-width modulated (PWM) signal for a photonic quantum simulator is introduced. The output voltage is switched on for a changeable specified time and switched off for the rest of the period.
Christoph Ribisch   +5 more
doaj   +1 more source

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