Results 61 to 70 of about 525,082 (280)

Enhanced Electromechanical Response in 1D Hybrid Perovskites: Coexistence of Normal and Relaxor Ferroelectric Phases

Advanced Functional Materials, EarlyView.
The dynamic polarization reversal of coexisting normal and relaxor ferroelectrics in 1D TMAPbI₃ (tetramethylammonium, TMA) is deciphered through combined experimental and theoretical approaches. By bridging atomic‐scale motion, macroscopic polarization switching, and depolarization effects, a universal methodology is established to engineer next ...
Chen Xue, Masaru Fujibayashi, Hengming Huang, Chisato Kato, Katsuya Ichihashi, Jun Manabe, Sadafumi Nishihara, Xiao‐Ming Ren, Takayoshi Nakamura   +8 more
wiley   +1 more source

The relation between classical and quantum electrodynamics [PDF]

, 2008
In this article it is presented the idea that quantum electrodynamics presents intrinsic limitations in the description of physical processes that makes it impossible to recover from it the type of description we have with classical electrodynamics.
Bacelar Valente, Mario
core  

Quantum Electrodynamics at Large Distances II: Nature of the Dominant Singularities

, 1995
Accurate calculations of macroscopic and mesoscopic properties in quantum electrodynamics require careful treatment of infrared divergences: standard treatments introduce spurious large-distances effects.
C. Chandler, D. Iagolnitzer, D. Iagolnitzer, H. P. Stapp, H. P. Stapp, H. P. Stapp, Henry P. Stapp, J. Coster, N. Nakanishi, R. J. Eden, T. Kawai, T. Kawai, Takahiro Kawai   +12 more
core   +1 more source

Run-away solutions in relativistic spin 1/2 quantum electrodynamics [PDF]

, 1997
The existence of run-away solutions in classical and non-relativistic quantum electrodynamics is reviewed. It is shown that the less singular high energy behavior of relativistic spin 1/2 quantum electrodynamics precludes an analogous behavior in that ...
Dirac, F.E. Low, Landau, Moniz
core   +2 more sources

Double Helical Plasmonic Antennas

Advanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin, Luka Zurak, Krzysztof Maćkosz, Lorenz Löffler, Victor Deinhart, Ivo Utke, Thorsten Feichtner, Katja Höflich   +7 more
wiley   +1 more source

Circuit Quantum Electrodynamics with a Spin Qubit

, 2012
Circuit quantum electrodynamics allows spatially separated superconducting qubits to interact via a "quantum bus", enabling two-qubit entanglement and the implementation of simple quantum algorithms.
A Blais, A Imamoğlu, A Wallraff, A. A. Houck, AC Johnson, C Fasth, C Kloeffel, D Loss, DI Schuster, DI Schuster, ET Jaynes, F Chen, FHL Koppens, J. M. Taylor, J. R. Petta, JR Petta, K Ono, K. D. Petersson, KD Petersson, L. W. McFaul, M Friesen, M Trif, M. D. Schroer, M. Jung, MA Sillanpää, MD Reed, MD Schroer, MR Delbecq, R Amsüss, R Hanson, RPG McNeil, S Hermelin, S Nadj-Perge, T Frey, VN Golovach, X Hu, Y Kubo   +36 more
core   +1 more source

Large N external-field quantum electrodynamics

Journal of High Energy Physics, 2022
We advocate the study of external-field quantum electrodynamics with N charged particle flavors. Our main focus is on the Heisenberg-Euler effective action for this theory in the large N limit which receives contributions from all loop orders.
Felix Karbstein
doaj   +1 more source

The phase symmetry of classical electrodynamics [PDF]

Mathematical modeling, v.2 (1997), 44-49 (Ukr), 2021
The dynamic $U (1)$ symmetry of classical electrodynamics without charges, similar to the known phase symmetry of quantum mechanics, is analyzed. Using this symmetry, alternative Lagrangians of classical electrodynamics, similar to quantum-mechanical ones, were found, and their symmetry properties were investigated.
arxiv  

Fluorescence Label‐Free Doxorubicin Sensor Using Polystyrene Sulfonate as a Synthetic Receptor in Whispering Gallery Mode Microresonators

Advanced Sensor Research, EarlyView.
The illustration showcases resonant optical microsensors for Doxorubicin (DXR) detection, using polystyrene sulfonate (PSS) as a synthetic receptor. PSS is deposited as a nanometer‐thick layer on fluorescent microparticles via layer‐by‐layer assembly. DXR‐PSS interaction is depicted, highlighting its effect on the sensor's resonant modes.
Elena Maurina, Algı Domac, Mateusz Olszyna, Lars Dähne, Giuseppe Barillaro   +4 more
wiley   +1 more source

Time as a Quantum Observable, Canonically Conjugated to Energy, and Foundations of Self-Consistent Time Analysis of Quantum Processes

Advances in Mathematical Physics, 2009
Recent developments are reviewed and some new results are presented in the study of time in quantum mechanics and quantum electrodynamics as an observable, canonically conjugate to energy. This paper deals with the maximal Hermitian (but nonself-adjoint)
V. S. Olkhovsky
doaj   +1 more source