Results 121 to 130 of about 2,140,108 (352)

A conserved Parity Operator [PDF]

open access: yesarXiv, 2004
The symmetry of Nature under a Space Inversion is described by a Parity operator. Contrary to popular belief, the Parity operator is not unique. The choice of the Parity operator requires several arbitrary decisions to be made. It is shown that alternative, equally plausible, choices leads to the definition of a Parity operator that is conserved by the
arxiv  

Physical realization of the parity anomaly and quantum hall effect

open access: yesPhysics Letters B, 1989
We present the lattice version of the anomalous Dirac operator in (2+1) dimensions. This version is associated with a group of magnetic translations rather than translations. This group naturally provided homologically nontrivial fiber bundles, the first Chern class of which is directly related with the number of zero modes and spectral asymmetry of ...
Paul Wiegmann, D. V. Khveshchenko
openaire   +2 more sources

Challenges and Opportunities of Upconversion Nanoparticles for Emerging NIR Optoelectronic Devices

open access: yesAdvanced Materials, EarlyView.
The special photo‐responsiveness of upconversion nanoparticles has opened up a new path for the advancement of near‐infrared (NIR)‐responsive optoelectronics. However, challenges such as low energy‐conversion efficiency and high nonradiative losses still persist.
Sunyingyue Geng   +7 more
wiley   +1 more source

Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.

open access: yesAdvanced Photonics Research, EarlyView.
Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley   +1 more source

Analysis of Band Effects in One‐Dimensional Periodic Lattices Using an Enhanced Homogenization Method

open access: yesAdvanced Photonics Research, EarlyView.
An enhanced homogenization method for periodic lattices, applicable to any asymmetrical multipart structures, is proposed. This method simplifies intricate gratings into slab waveguides, predicts guided‐mode resonances and bound states in the continuum, without relying on numerical methods.
Atefe Taheri, Mehrdad Shokooh‐Saremi
wiley   +1 more source

Quantum spread complexity in neutrino oscillations

open access: yesEuropean Physical Journal C: Particles and Fields
Quantum information theory has recently emerged as a flourishing area of research and quantum complexity, one of its powerful measures, is being applied for investigating complex systems in many areas of physics.
Khushboo Dixit   +2 more
doaj   +1 more source

RK(⁎) from RPV-SUSY sneutrinos

open access: yesNuclear Physics B, 2023
We analyze the lepton flavor universality violation (LFV) in process b→sℓ+ℓ− in an R-parity violating supersymmetric (RPV-SUSY) scenario. The most recent update on RK from the LHCb collaboration suggests approximately 3.1σ deviation from the Standard ...
Debjyoti Bardhan   +2 more
doaj  

Directional Whispering Gallery Mode in Microring Lasers Enabled by Tilted Azimuthal Gratings

open access: yesAdvanced Photonics Research, EarlyView.
The chiral light propagation in microring lasers with active cladding, enabled by tilted azimuthal gratings, is illustrated. The symmetry of the whispering gallery mode is disrupted due to scattering losses that are determined by the tilted angle, resulting in distinct clockwise and counterclockwise light propagation, and enabling controlled chirality ...
Jinghan Chen   +6 more
wiley   +1 more source

Parity Doubling in QCD Thermodynamics

open access: yesProceedings, 2019
Motivated by the recent lattice study by FASTSUM collaboration, effective masses of the baryon parity-doublers are shown for various pion masses.
Chihiro Sasaki   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy