Derives quantum-limited gain, noise, and clamping for acoustoelectric amplification in a piezoelectric-2DEG heterostructure, showing efficient operation for wavelengths longer than electron spacing.
(D17) Its average over the atom state is ⟨X1(τ)⟩ a =X 1 +(gτ) 2 N X1 + N 4 =G 0X1 + N(gτ) 2 4
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Quantum-Limited Acoustoelectric Amplification in a Piezoelectric-2DEG Heterostructure
Derives quantum-limited gain, noise, and clamping for acoustoelectric amplification in a piezoelectric-2DEG heterostructure, showing efficient operation for wavelengths longer than electron spacing.