Results 81 to 90 of about 49,673 (241)

Chiral Kirigami for Bend‐Tolerant Reconfigurable Hologram with Continuously Variable Chirality Measures

Advanced Materials, Volume 36, Issue 30, July 25, 2024.
This work demonstrates that chirality‐guided pixelation of plasmonic kirigami sheets allows tunable multiplexed holography at terahertz (THz) frequencies. The slanted Au strips enable light modulation and real‐time switching of complex grayscale 3D images.
Won Jin Choi, Sang Hyun Lee, Minjeong Cha, Nicholas A. Kotov   +3 more
wiley   +1 more source

The decays of $$\bar{B}^0$$ B¯0 , $$\bar{B}^0_s$$ B¯s0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson

European Physical Journal C: Particles and Fields, 2018
We investigate the decays of $$\bar{B}^0_s$$ B¯s0 , $$\bar{B}^0$$ B¯0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson in a theoretical framework by taking into account the dominant process for the weak decay of $$\bar{B}$$ B¯ meson into $
Ju-Jun Xie, Gang Li
doaj   +1 more source

PSEUDOSCALAR MESONS IN NUCLEAR MEDIUM [PDF]

Nuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions, 2003
Invited talk at the Workshop "MEDIUM02", Kyushu, Oct.25 - 26 ...
openaire   +4 more sources

Graph‐theoretical chirality measure and chirality–property relations for chemical structures with multiscale mirror asymmetries

Chirality, Volume 36, Issue 6, June 2024.
Chirality measures can be exceptionally difficult to calculate and reveal weak, if any, correlations with physical, chemical, and biological properties of chemical structures. Applying the concept of torsion in the framework of discrete mathematics to graph representations of molecular and nanoscale helicoids, we show that graph‐theoretical chirality ...
Minjeong Cha, Jessica Ma, Ji‐Young Kim, Emine Sumeyra Turali Emre, Nicholas A. Kotov   +4 more
wiley   +1 more source

Thermal quarkonium physics in the pseudoscalar channel [PDF]

Journal of High Energy Physics, 2017
Abstract The pseudoscalar correlator is an ideal lattice probe for thermal modifications to quarkonium spectra, given that it is not compromised by a contribution from a large transport peak. We construct a perturbative spectral function incorporating resummed thermal effects around the threshold and vacuum asymptotics above the ...
Olaf Kaczmarek, Olaf Kaczmarek, Mikko Laine, Hauke Sandmeyer, Anna-Lena Kruse, Heng-Tong Ding, Yannis Burnier, Hiroshi Ohno, Hiroshi Ohno   +8 more
openaire   +7 more sources

The Combination of the Azimuthally and Radially Polarized Beams: Helicity and Momentum Densities, Generation, and Optimal Chiral Light

Advanced Photonics Research, Volume 5, Issue 5, May 2024.
In this work, the properties of the azimuthally radially polarized beam (ARPB), a superposition of azimuthally and radially polarized beams, are explored. Their phase difference is tuned to achieve an ARPB with optimal chirality density, that stems from purely longitudinal fields on the beam axis.
Albert Herrero‐Parareda, Filippo Capolino   +1 more
wiley   +1 more source

Trace and Axial Anomalies on Equal Footing

Advances in High Energy Physics, 2020
We discussed that for some particular nonsupersymmetric theories, a generalized symmetry that includes both the scale and axial transformations and leads to a single current may contain also a pseudoscalar term. The method, inspired by the superconformal
Renata Jora
doaj   +1 more source

Learning rotations

Mathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1204-1217, February 2024.
Many problems in computer vision today are solved via deep learning. Tasks like pose estimation from images, pose estimation from point clouds or structure from motion can all be formulated as a regression on rotations. However, there is no unique way of parametrizing rotations mathematically: matrices, quaternions, axis‐angle representation or Euler ...
Alberto Pepe, Joan Lasenby, Pablo Chacón   +2 more
wiley   +1 more source

Model discrimination in pseudoscalar-meson photoproduction [PDF]

Physics Letters B, 2016
To learn about a physical system of interest, experimental results must be able to discriminate among models. We introduce a geometrical measure to quantify the distance between models for pseudoscalar-meson photoproduction in amplitude space. Experimental observables, with finite accuracy, map to probability distributions in amplitude space, and the ...
Nys, J., Ryckebusch, J., Ireland, D.G., Glazier, D.I.   +3 more
openaire   +5 more sources

Reconstructing a rotor from initial and final frames using characteristic multivectors: With applications in orthogonal transformations

Mathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1218-1235, February 2024.
If an initial frame of vectors {ei}$$ \left\{{e}_i\right\} $$ is related to a final frame of vectors {fi}$$ \left\{{f}_i\right\} $$ by, in geometric algebra (GA) terms, a rotor, or in linear algebra terms, an orthogonal transformation, we often want to find this rotor given the initial and final sets of vectors.
Anthony Lasenby, Joan Lasenby, Charalampos Matsantonis   +2 more
wiley   +1 more source