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acoustoelectric effect 1drift-induced radiation 1nonequilibrium thermodynamics 1phononic devices 1phonon-plasmon interaction 1piezoelectric coupling 1quantum acoustics 1quantum vacuum 1silicon carbide 1superconducting circuits 1

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20242026
most citedUltra-low loss piezo-optomechanical low-confinement silicon nitride platform for visible wavelength quantum photonic circuits

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cond-mat.mes-hall2026

Quantum-Limited Acoustoelectric Amplification in a Piezoelectric-2DEG Heterostructure

Eric Chatterjee, Daniel Soh, Matt Eichenfield

We provide a quantum mechanical description of phonon amplification in a heterostructure consisting of a two-dimensional electron gas (2DEG) stacked on top of a piezoelectric mater…