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arXiv · 1907.12714

$N$-phonon bundle emission via the anti-Stokes process

Qian Bin·Xin-You Lü·Fabrice P. Laussy·Franco Nori·Ying Wu
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Abstract

We demonstrate theoretically the bundle emission of $n$ strongly correlated phonons in an acoustic cavity QED system. The mechanism relies on anti-Stokes resonances that generate super-Rabi oscillations between states with a large difference in their number of excitations, which, combined with dissipation, transfer coherently pure $n$-phonon states outside of the cavity. This process works with close to perfect purity over a wide range of parameters and is tunable optically with well-resolved operation conditions. This broadens the realm of quantum phononics, with potential applications for on-chip quantum information processing, quantum metrology, and engineering of new types of quantum devices, such as optically heralded $N$-phonon guns.

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Qian Bin, Xin-You Lü, Fabrice P. Laussy, Franco Nori, Ying Wu. 2020-02-09. $N$-phonon bundle emission via the anti-Stokes process. https://doi.org/10.1103/physrevlett.124.053601

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