Tensorial Flow of Mosaic Vector Beams in Physical Review Letters

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ISC researcher Davide Pierangeli coauthored an insghtful experimental work now published in Physical Review Letters, Measuring the Tensorial Flow of Mosaic Vector Beams in Disordered Media, D. Pierangeli, A. Aiello, and C. Conti, Phys. Rev. Lett. 132, 243801 (2024).

Abstract

Optical beams with nonuniform polarization offer enhanced capabilities for information transmission, boasting increased capacity, security, and resilience. These beams possess vectorial features that are spatially organized within localized three-dimensional regions, forming tensors that can be harnessed across a spectrum of applications spanning quantum physics, imaging, and machine learning.

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Anomalous Heat Transport in Low Dimensions

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Many phenomena in nature occur under nonequilibrium stationary conditions. For instance, an electric current is obtained by applying an electric field along a conductor or heat is transported when a temperature gradient is established between two boundaries of a material. Despite their ubiquiteness and importance in everyday life many aspects of such phenomena are still under debate in the theoretical physics community.

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Asymmetric Wave Transport in Nonlinear System

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Deterministic chaos, fractal structures and other beautiful phenomena are manifestations of the nonlinear character of forces which govern our world. Besides a revolutionary change in our approach to predictability, these discoveries had great impact on technological applications.  Among the most fascinating ones is  the possibility to control energy flows by tuning nonlinear features of complex materials.

In the context of wave propagation trough nonlinear media, the simplest form of control would be to devise a “wave diode”  in which electromagnetic or elastic waves are transmitted differently along two opposite propagation directions.… Read the rest

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