Results 51 to 60 of about 90,636 (199)

Vacuum Cherenkov radiation and photon triple-splitting in a Lorentz-noninvariant extension of quantum electrodynamics

, 2005
We consider a CPT-noninvariant scalar model and a modified version of quantum electrodynamics with an additional photonic Chern-Simons-like term in the action. In both cases, the Lorentz violation traces back to a spacelike background vector. The effects
Adam, Adam, Adam, Altschul, C. Kaufhold, Carroll, Coleman, Coleman, Colladay, Colladay, de Wit, F.R. Klinkhamer, Fiore, Gelmini, Havas, Jacobson, Jauch, Klinkhamer, Klinkhamer, Klinkhamer, Kostelecký, Kostelecký, Lehnert, Owen, Sakurai, Wardle   +25 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Some Recent Advances in Bound-State Quantum Electrodynamics

, 2005
We discuss recent progress in various problems related to bound-state quantum electrodynamics: the bound-electron g factor, two-loop self-energy corrections and the laser-dressed Lamb shift.
Appelquist S., Bonciani P., Bonciani P., Caswell G.P., Cohen-Tannoudji R., Draganić J.R., Drake R.A., Eides V.A., Eides V.A., Eikema J., Evers U.D., Grotch R.A., Hughes T., Häffner T., Ivanov S.G., J Evers, Jentschura J., Jentschura J., Karplus N.M., Karshenboim S.G., Kinoshita W.B., Mastrolia E., Melnikov T.V., Pachucki U.D., Pachucki U.D., Pineda, Reichert M., U D Jentschura, Verdú S., Yerokhin P., Yerokhin P.   +30 more
core   +2 more sources

Emergence of Supersymmetric Quantum Electrodynamics [PDF]

Physical Review Letters, 2017
Supersymmetric (SUSY) gauge theories such as the Minimal Supersymmetric Standard Model play a fundamental role in modern particle physics, but have not been verified so far in nature. Here, we show that a SUSY gauge theory with dynamical gauge bosons and fermionic gauginos emerges naturally at the pair-density-wave (PDW) quantum phase transition on the
Jian, Shao-Kai, Lin, Chien-Hung, Maciejko, Joseph, Yao, Hong   +3 more
openaire   +3 more sources

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

$\pi^+\pi^+$ and $\pi^+\pi^-$ colliding in noncommutative space

, 2012
By studying the scattering process of scalar particle pion on the noncommutative scalar quantum electrodynamics, the non-commutative amendment of differential scattering cross-section is found, which is dependent of polar-angle and the results are ...
A. Alboteanu, A. Connes, C.-S. Chu, C.-S. Chu, H.S. Snyder, I. Hinchliffe, I.F. Riad, I.Ya. Aref’eva, J. Hewett, J. Hewett, J. Wang, J.M. Carmona, Jianhua Wang, K. Li, K. Li, K. Li, K. Li, Kai Ma, Kang Li, M. Chaichian, M. Chaichian, M. Chaichian, M. Chaichian, M.M. Sheikh-Jabbari, M.M. Sheikh-Jabbari, M.M. Sheikh-Jabbari, M.R. Douglas, N. Seiberg, N. Seiberg, S. Dulat, Sayipjamal Dulat, T.G. Rizzo, T.H. Heng, X. Calmet, X. Calmet, X. Calmet, Y. Liao, Y. Liao, Y. Liao, Yi Yuan   +39 more
core   +1 more source

Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi

Advanced Science, EarlyView.
Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem, Rebecca Chan, Brinda Kuthanazhi, Juan Schmidt, Jose A. Moreno, Hermann Suderow, Paul Canfield, Taylor L. Hughes, Vidya Madhavan   +8 more
wiley   +1 more source

Work Versus Force: Simultaneous Processes for Describing Interactions

Advanced Physics Research, EarlyView.
ABSTRACT Achieving a unified description of interactions remains an open challenge in theoretical physics, which currently describes four fundamental forces. This situation may be viewed differently when interactions are formulated in terms of processes (work as actio) rather than forces (force as actio), not only at the macroscopic level but also at ...
Grit Kalies, Duong D. Do, Cornelia Breitkopf   +2 more
wiley   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

FlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan, Hao Li, Mengna Yu, Huiyin Wang, Jiangqiang He, Menghan Wu, Quanyou Feng, Linghai Xie   +7 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