Demonstrates phononic parametric amplification with 14.2 dB gain at room temperature, suggesting applications in quantum measurement.
We demonstrate phononic parametric amplification at 500 MHz in InGaAs-TFLN-Si heterostructures with 14.2 dB of phase-sensitive gain at room temperature. We discuss applications to on-chip measurement of cryogenic quantum optomechanical systems.
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Roberts et al. (2025) studied this question.
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