Results 41 to 50 of about 252,932 (279)

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

The Electromagnetic Coupling in Kemmer-Duffin-Petiau Theory

, 1998
We analyse the electromagnetic coupling in the Kemmer-Duffin-Petiau (KDP) equation. Since the KDP--equation which describes spin-0 and spin-1 bosons is of Dirac-type, we examine some analogies and differences from the Dirac equation.
Akhiezer, Ancochea, Berestetskii, Dirac, Dirac, Duffin, Ghose, Ghose, Ghose, Harish-Chandra, Holland, Kemmer, Krajcik, Majorana, Marek Nowakowski, Mukunda, Nambu, Newton, Shay, Takahashi, Umezawa, Weinberg   +21 more
core   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

On exact massless spinor quasibound states of Schwarzschild black hole

Physics Letters B
In the paper (D. Senjaya, 2024 [1]), the author investigated the massless spinor field in the Schwarzschild spacetime and derived an analytical solution expressed in terms of the Heun function. However, based on this approach, an incorrect expression for
Bobur Turimov, Sulton Usanov
doaj   +1 more source

How to drive a Dirac system fast and safe

New Journal of Physics, 2016
A recent article (Deffner New J. Phys. http://dx.doi.org/10.1088/1367-2630/18/1/012001 18 http://dx.doi.org/10.1088/1367-2630/18/1/012001 ) discusses how to speed up systems governed by the (1 + 1)-dimensional Dirac equation so that the ideal adiabatic ...
J G Muga, M A Simón, A Tobalina
doaj   +1 more source

On real solutions of the Dirac equation for a one-dimensional Majorana particle

Results in Physics, 2019
We construct general solutions of the time-dependent Dirac equation in (1+1) dimensions with a Lorentz scalar potential, subject to the so-called Majorana condition, in the Majorana representation.
Salvatore De Vincenzo
doaj   +1 more source

Dirac equation from the Hamiltonian and the case with a gravitational field

, 2005
Starting from an interpretation of the classical-quantum correspondence, we derive the Dirac equation by factorizing the algebraic relation satisfied by the classical Hamiltonian, before applying the correspondence.
A. S. Wightman, B. Doubrovine, C. Kiefer, C. W. Misner, E. A. Tagirov, E. Scholz, E. Schrödinger, E. Schrödinger, G. B. Whitham, H. Feshbach, H. Weyl, J. D. Bjorken, L. de Broglie, L. de Broglie, L. L. Foldy, L. Landau, L. Ryder, M. Arminjon, M. Arminjon, M. Arminjon, M.-N. Célérier, Mayeul Arminjon, N. D. Birrell, P. A. M. Dirac, R. A. Close, S. B. M. Bell, S. K. Srinivasan, T. D. Newton, V. A. Fock, V. V. Nesvizhevsky, V. V. Nesvizhevsky, W. L. Bade, Yu. N. Obukhov   +32 more
core   +5 more sources

The Dirac Equation and the Majorana Dirac Equation

, 2020
We discuss the structure of the Dirac equation and how the nilpotent and the Majorana operators arise naturally in this context. This provides a link between Kauffman's work on discrete physics, iterants and Majorana Fermions and the work on nilpotent structures and the Dirac equation of Peter Rowlands.
Kauffman, Louis H, Rowlands, Peter
openaire   +2 more sources

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source