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Quantum Plasmonics
TLDR
This review discusses and compares the key models and experiments used to explore how the quantum nature of electrons impacts plasmonics in the context of quantum size corrections of localized plasmons and quantum tunneling between nanoparticle dimers.
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Nanomagnonic Cavities for Strong Spin-Magnon Coupling and Magnon-Mediated Spin-Spin Interactions.
TLDR
It is shown that the field in such nanocavities can efficiently couple to isolated spin emitters positioned close to the nanoparticle surface reaching the single magnon-spin strong-coupling regime and mediate efficient long-range quantum state transfers between isolatedspin emitters.
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Nonradiative Plasmon Decay and Hot Carrier Dynamics: Effects of Phonons, Surfaces, and Geometry.
TLDR
First-principles calculations that capture all of the significant microscopic mechanisms underlying surface plasmon decay and predict the initial excited carrier distributions are presented, including ab initio predictions of phonon-assisted optical excitations in metals, which are critical to bridging the frequency range between resistive losses at low frequencies and direct interband transitions at high frequencies.
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Solar energy conversion via hot electron internal photoemission in metallic nanostructures: Efficiency estimates
Collection of hot electrons generated by the efficient absorption of light in metallic nanostructures, in contact with semiconductor substrates can provide a basis for the construction of solar…
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Phase Stability and Defect Physics of a Ternary ZnSnN2 Semiconductor: First Principles Insights
First-principles calculations show that ZnSnN2 has a very small formation enthalpy, and the donor defects such as SnZn antisites and ON impurities have high concentration, making the material…
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Ab initio phonon coupling and optical response of hot electrons in plasmonic metals
Ultrafast laser measurements probe the nonequilibrium dynamics of excited electrons in metals with increasing temporal resolution. Electronic structure calculations can provide a detailed microscopic…
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Imaging phonon-mediated hydrodynamic flow in WTe2 with cryogenic quantum magnetometry
In the presence of strong interactions, electrons in condensed matter systems can behave hydrodynamically thereby exhibiting classical fluid phenomena such as vortices and Poiseuille flow. While in…
Branching quantum convolutional neural networks
Ian MacCormack, 2, 3 Conor Delaney, Alexey Galda, 3 Nidhi Aggarwal, and Prineha Narang ∗ Kadanoff Center for Theoretical Physics, University of Chicago, Chicago, Illinois 60637, USA Department of…
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Theoretical predictions for hot-carrier generation from surface plasmon decay
TLDR
It is found that carrier energy distributions are sensitive to the electronic band structure of the metal: gold and copper produce holes hotter than electrons by 1–2 eV, while silver and aluminium distribute energies more equitably between electrons and holes.
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Axion-Field-Enabled Nonreciprocal Thermal Radiation in Weyl Semimetals.
TLDR
It is shown that the axion electrodynamics in magnetic Weyl semimetals can be used to construct strongly nonreciprocal thermal emitters that near completely violate Kirchhoff's law over broad angular and frequency ranges, without requiring any external magnetic field.
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