Results 1 to 10 of about 1,434,608 (227)

Spatiotemporally Resolved Orbital Hall Effect in a Topological Semimetal

Advanced Materials, EarlyView.
Real‐space mapping of orbital angular momentum (OAM) transport is achieved using contact‐free polarimetric terahertz spectroscopy. This principle is applied to the topological semimetal Td‐WTe2, revealing the spatial separation of electrons into two distinct regions characterized by opposite out‐of‐plane OAM (±Lz).
Byung Cheol Park, Taewoo Ha, Hojun Lee, Kyung Ik Sim, Insu Baek, Seok Joon Yun, Kyujoon Lee, Hyun‐Woo Lee, Young Hee Lee   +8 more
wiley   +1 more source

Topological phase transitions in the non-Abelian honeycomb lattice

, 2010
Ultracold Fermi gases trapped in honeycomb optical lattices provide an intriguing scenario, where relativistic quantum electrodynamics can be tested. Here, we generalize this system to non-Abelian quantum electrodynamics, where massless Dirac fermions ...
, A Bermudez, A Kubasiak, Bloch I, Bücker R, Chen X Dong S Liu J-M, Dutta A Singh R R P Divakaran U, Eckardt A Hauke Ph Soltan-Panahi P Becker C Sengstock K Lewenstein M, Goldman N, Goldman N, Hammerer K Sørensen A Polzik E S, Jaksch D, Klein A, Kohmoto M, Li F, Lin Y-J, M A Martin-Delgado, M Lewenstein, N Goldman, Polini M, Trotzky S Pollet L Gerbier F Schnorrberger U Bloch I Prokof'ev N V Svistunov B Troyer M, Wen X, Wunsch B, Ye J Zhang J Liu W Zhang K Li Y Zhang W   +23 more
core   +1 more source

Strong and Weak Coupling Nanophysics with Free Electron Beams

Advanced Optical Materials, EarlyView.
This paper focuses on a short review of the study of the coupling between optical excitations at the nanometer scale, made possible by recent advances in free electron beam spectroscopies. In particular, plasmon–plasmon, plasmon–exciton, and plasmon–phonon couplings are reviewed. Abstract The work of Luis M.
Mathieu Kociak, Xiaoyan Li, Yves Auad, Cyrille Hamon, Claire Goldmann, Luiz Tizei, Odile Stéphan   +6 more
wiley   +1 more source

Hundreds of Nanocoulomb Electron Acceleration Driven by Multipetawatt Laser in Subcritical Density Plasmas

Advanced Photonics Research, EarlyView.
Electron acceleration using multipetawatt femtosecond lasers and subcritical density plasmas achieves a maximum charge of 245 nC, with an injection rate of up to 100 nC per picosecond. The charge variation with plasma density, initially increasing and then decreasing, arises from the competition between the injection of multiple plasma waves and laser ...
Xi‐Chen Hu, Ming‐Yang Zhu, Yi‐Fei Li, Jie Feng, Guang‐Wei Lu, Yao‐Jun Li, Xu‐Lei Ge, Xiao‐Jun Huang, Wen‐Chao Yan, Li‐Ming Chen   +9 more
wiley   +1 more source

Three-dimensional quantum electrodynamics as an effective interaction [PDF]

, 1995
We obtain a Quantum Electrodynamics in 2+1 dimensions by applying a Kaluza--Klein type method of dimensional reduction to Quantum Electrodynamics in 3+1 dimensions rendering the model more realistic to application in solid-state systems, invariant under ...
Abdalla, E., Filho, F. M. de Carvalho
core   +1 more source

Artificial Intelligence‐Assisted Target Design for High‐Intensity Laser‐Driven Neutron Sources

Advanced Intelligent Systems, EarlyView.
This study presents an artificial intelligence (AI)‐assisted target design that combines particle‐in‐cell simulations with gradient ascent algorithm to optimize laser‐driven neutron sources. By enhancing the sheath electric field, the optimized structure increases neutron yield by a factor of 4,000.
Youjing Wang, Kai Zhao, Yixin Li, Zhiguo Ma, Yi Yang, Yumiao Wang, Changbo Fu, Yu‐Gang Ma   +7 more
wiley   +1 more source

Investigation of the fine structure of antihydrogen. [PDF]

, 2020
At the historic Shelter Island Conference on the Foundations of Quantum Mechanics in 1947, Willis Lamb reported an unexpected feature in the fine structure of atomic hydrogen: a separation of the 2S1/2 and 2P1/2 states1.
ALPHA Collaboration
core   +1 more source

Quantum Jumps in Amplitude Bistability: Tracking a Coherent and Invertible State Localization

Annalen der Physik, EarlyView.
A notable asymmetry is shown to characterize the bistable switching between macroscopic metastable states of light in the strong‐coupling limit of radiation–matter interaction. Transitions from the vacuum to a highly excited state correlate with a highly bunched sequence of emitted photons, while a downward switch to the vacuum involves a coherent ...
Th. K. Mavrogordatos
wiley   +1 more source

Relational Bundle Geometric Formulation of Non‐Relativistic Quantum Mechanics

Fortschritte der Physik, EarlyView.
Abstract A bundle geometric formulation of non‐relativistic many‐particles Quantum Mechanics is presented. A wave function is seen to be a C$\mathbb {C}$‐valued cocyclic tensorial 0‐form on configuration space‐time seen as a principal bundle, while the Schrödinger equation flows from its covariant derivative, with the action functional supplying a ...
J. T. François, L. Ravera
wiley   +1 more source

SOLEY: A Package for Optical and Extended Detailed Balance Model for Photovoltaic Device Simulation

Solar RRL, EarlyView.
SOLEY is a graphical user interface (GUI)‐based simulation package for photovoltaic cells. It combines optical modeling using the Transfer Matrix Method, and device modeling using an extension of the detailed balance model, which considers various recombination mechanisms, including Shockley–Read–Hall.
Zacharie Jehl Li‐Kao
wiley   +1 more source