Category: 4. Physics

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  • Anisotropic screening of excitons in van der Waals materials

    Anisotropic screening of excitons in van der Waals materials

    Electronic and optical properties of γ-InSe

    The properties of γ-InSe were theoretically investigated using first-principles methods, including many-body effects. Details of the calculation information are provided in the Methods section. γ-InSe…

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  • Advancing inorganic electro-optical materials for 5 G communications: from fundamental mechanisms to future perspectives

    Advancing inorganic electro-optical materials for 5 G communications: from fundamental mechanisms to future perspectives

    The development of EO materials has seen key milestones over the past century. Ferroelectricity was first experimentally discovered a century ago, leading to Valasek’s 1920 study on Rochelle salts showing their ferroelectric domains under…

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  • Neutrinos from explosive transients at the dawn of multi-messenger astronomy

    Neutrinos from explosive transients at the dawn of multi-messenger astronomy

  • Vitagliano, E., Tamborra, I. & Raffelt, G. G. Grand Unified Neutrino Spectrum at Earth: sources and spectral components. Rev. Mod. Phys. 92, 45006 (2020).

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  • Aartsen, M. G. et al….

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  • Photon–photon chemical thermodynamics of frequency conversion processes in highly multimode systems

    Photon–photon chemical thermodynamics of frequency conversion processes in highly multimode systems

    Theory

    To formulate the aspects governing these optical “chemical reactions”, we begin by considering an exemplary frequency generation process in an arbitrary multimoded optical system. In the case under consideration, let us assume that the…

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