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It has been proposed that spin-polarized cosmic radiation can induce asymmetric changes in helical biopolymers that may account for the emergence of biological homochirality. The parity violation in the weak interaction has direct…

Earth and Planetary Astrophysics · Physics 2021-04-07 Noemie Globus , Anatoli Fedynitch , Roger D. Blandford

We investigate the impact of instrumental systematic errors on the potential of cosmic microwave background polarization experiments targeting primordial B-modes. To do so, we introduce spin-weighted Muller matrix-valued fields describing…

Astrophysics · Physics 2008-11-26 Daniel O'Dea , Anthony Challinor , Bradley R. Johnson

Different experimental studies have reported anomalous diffusion in brain tissues and notably this anomalous diffusion is expressed through fractional derivatives. Axons are important to understand neurodegenerative diseases such as…

Neurons and Cognition · Quantitative Biology 2017-09-27 Erick J. López-Sánchez , Juan M. Romero , Huitzilin Yépez-Martínez

Recent studies have proposed that the diffusion of messenger molecules, such as monoamines, can mediate the plastic adaptation of synapses in supervised learning of neural networks. Based on these findings we developed a model for neural…

Neurons and Cognition · Quantitative Biology 2017-09-21 Damian L. Berger , Lucilla de Arcangelis , Hans J. Herrmann

Photonic quantum technologies have been extensively studied in quantum information science, owing to the high-speed transmission and outstanding low-noise properties of photons. However, applications based on photonic entanglement are…

Quantum Physics · Physics 2015-04-10 Ming Li , Chang-Ling Zou , Xi-Feng Ren , Xiao Xiong , Yong-Jing Cai , Guo-Ping Guo , Li-Min Tong , Guang-Can Guo

This work proposes a two-dimensional electrophysiological model for describing neuronal responses to external electric stimuli under patch-clamped conditions. Our proposed model successfully captures the key features of the Hodgkin-Huxley…

Neurons and Cognition · Quantitative Biology 2023-12-13 Lízia Maria Gonçalves Branco , Rui Manuel Agostinho Dilão

The method of wavefront shaping to control optical properties of opaque media is a promising technique for authentication applications. One of the main challenges of this technique is the sensitivity of the wavefront-sample coupling to…

Optics · Physics 2015-08-24 Benjamin R. Anderson , Ray Gunawidjaja , Hergen Eilers

The polarization of light can exhibit unusual features when singular optical beams are involved. In 3-dimensional polarized random media the polarization orientation around singularities describe 1/2 or 3/2 M\"obius strips. It has been…

3D-Polarized Light Imaging (3D-PLI) is a neuroimaging technique used to study the structural connectivity of the human brain at the meso- and microscale. In 3D-PLI, the complex nerve fiber architecture of the brain is characterized by 3D…

Computational Physics · Physics 2020-12-21 Felix Matuschke , Kévin Ginsburger , Cyril Poupon , Katrin Amunts , Markus Axer

Recently a million of biological neurons (BNN) has turned out better from modern RL methods in playing Pong~\cite{RL}, reminding they are still qualitatively superior e.g. in learning, flexibility and robustness - suggesting to try to…

Machine Learning · Computer Science 2026-05-19 Jarek Duda

A statistical model for the polarization of pulsar radio emission is enhanced to account for the heavy modulation of the emission, the possible covariance of the Stokes parameters, and the observed asymmetries in the distributions of total…

High Energy Astrophysical Phenomena · Physics 2022-10-12 M. M. McKinnon

The correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providing new functionality for miniaturized and low-cost optical…

Metasurfaces composed of anisotropic subwavelength structures provide an ultrathin platform for a compact, real-time polarimeter. However, applications in polychromatic scenes are restricted by the limited operating bandwidths and degraded…

Optics · Physics 2024-04-18 Yueqiang Hu , Yi Zhang , Yuting Jiang , Quan Wang , Meiyan Pan , Huigao Duan

Cell polarization and directional cell migration can display random, persistent and oscillatory dynamic patterns. However, it is not clear if these polarity patterns can be explained by the same underlying regulatory mechanism. Here, we…

We analyze optical binary communication assisted by entanglement and show that: i) ideal entangled channels have smaller error probability than ideal single-mode coherent channels if the photon number of the channel is larger than one; ii)…

Quantum Physics · Physics 2007-05-23 Matteo G A Paris

Metasurfaces are a powerful tool for manipulating light using small structures on the nanoscale. In most meta-surfaces, near-field couplings are treated as unfavorable perturbations. Here, we experimentally investigate a structure…

Metasurfaces offer a powerful platform for effective light manipulation, which is crucial for advanced optical technologies. While designs of polarization-independent structures have reduced the need for polarized illumination, they are…

The demand for structured light with a reconfigurable spatial and polarization distribution has been increasing across a wide range of fundamental and advanced photonics applications, including microscopy, imaging, sensing, communications,…

Optics · Physics 2024-10-22 Wu Zhou , Zengqi Chen , Kaihang Lu , Hao Chen , Mingyuan Zhang , Wenzhang Tian , Yeyu Tong

The effect of anomalous right-handed top couplings on the photon polarization in $B\to K_{\rm res}\gamma$ is investigated. It is recently reported that the photon polarization can be measured through the up-down asymmetry of the photon…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jong-Phil Lee

Filled arrays of bolometers are currently being employed for use in astronomy from the far-infrared through millimeter parts of the electromagnetic spectrum. Because of the large range of wavelengths for which such detectors are applicable,…