Results 61 to 70 of about 95,918 (256)

Layer‐Dependent Antiferromagnetic Chern and Axion Insulating States in UOTe

Advanced Science, EarlyView.
Layer‐dependent topological phases are identified in the van der Waals antiferromagnet UOTe. Ab initio calculations reveal bilayer UOTe as a rare example of high‐temperature antiferromagnetic Chern insulator with quantized Hall conductivity and near‐zero net magnetization, while odd‐layer films exhibit axion‐insulator‐like behavior with quantized spin ...
Sougata Mardanya, Barun Ghosh, Mengke Liu, Christopher Broyles, Junyeong Ahn, Kai Sun, Jennifer E. Hoffman, Sheng Ran, Arun Bansil, Su‐Yang Xu, Sugata Chowdhury   +10 more
wiley   +1 more source

Quantum Electrodynamics vacuum polarization solver

New Journal of Physics, 2021
The self-consistent modeling of vacuum polarization due to virtual electron-positron fluctuations is of relevance for many near term experiments associated with high intensity radiation sources and represents a milestone in describing scenarios of ...
T Grismayer, R Torres, P Carneiro, F Cruz, R A Fonseca, L O Silva   +5 more
doaj   +1 more source

No Eigenvalue in Finite Quantum Electrodynamics [PDF]

, 1997
We re-examine Quantum Electrodynamics (QED) with massless electron as a finite quantum field theory as advocated by Gell-Mann-Low, Baker-Johnson, Adler, Jackiw and others.
Adler S., Adler S. L., Adler S. L., Adler S. L., Baker M., Christ N., Eguchi T., Johnson K., P. Narayana Swamy, R. Acharya, Strocchi F.   +10 more
core   +2 more sources

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

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

Quantum-Optical Spectrometry in Relativistic Laser–Plasma Interactions Using the High-Harmonic Generation Process: A Proposal

Photonics, 2021
Quantum-optical spectrometry is a recently developed shot-to-shot photon correlation-based method, namely using a quantum spectrometer (QS), that has been used to reveal the quantum optical nature of intense laser–matter interactions and connect the ...
Theocharis Lamprou, Rodrigo Lopez-Martens, Stefan Haessler, Ioannis Liontos, Subhendu Kahaly, Javier Rivera-Dean, Philipp Stammer, Emilio Pisanty, Marcelo F. Ciappina, Maciej Lewenstein, Paraskevas Tzallas   +10 more
doaj   +1 more source

Engineering Topological Phases with a Traveling‐Wave Spacetime Modulation

Laser &Photonics Reviews, EarlyView.
Time‐varying systems have garnered considerable attention due to their unique potential in manipulating electromagnetic waves. Here, a novel class of topological spacetime crystals with a traveling‐wave modulation is introduced. By manipulating material anisotropy, one can engineer light angular momentum and non‐trivial topological phases characterized
João C. Serra, Mário G. Silveirinha
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

Enhancement and Speed‐Up of Carrier Dynamics in A Dielectric Nanocavity with Deep Sub‐Wavelength Confinement

Laser &Photonics Reviews, EarlyView.
This work presents the first experimental investigation of ultrafast dynamics in dielectric bowtie nanocavities, featuring deep‐subwavelength mode confinement. Measurements reveal enhanced two‐photon absorption, sub‐picosecond carrier relaxation, and strong pump–probe interactions, demonstrating clear advantages over conventional nanocavities for low ...
Gaoneng Dong, Ali Nawaz Babar, Rasmus Ellebæk Christiansen, Søren Engelberth Hansen, Søren Stobbe, Yi Yu, Jesper Mørk   +6 more
wiley   +1 more source

Radiative nonrecoil nuclear finite size corrections of order α(Zα)5 to the Lamb shift in light muonic atoms

Physics Letters B, 2017
On the basis of quasipotential method in quantum electrodynamics we calculate nuclear finite size radiative corrections of order α(Zα)5 to the Lamb shift in muonic hydrogen and helium.
R.N. Faustov, A.P. Martynenko, F.A. Martynenko, V.V. Sorokin   +3 more
doaj   +1 more source