A phonon laser in the quantum regime
Quantum Physics
2023-08-09 v1 Atomic Physics
Abstract
We demonstrate a trapped-ion system with two competing dissipation channels, implemented independently on two ion species co-trapped in a Paul trap. By controlling coherent spin-oscillator couplings and optical pumping rates we explore the phase diagram of this system, which exhibits a regime analogous to that of a (phonon) laser but operates close to the quantum ground state with an average phonon number of . We demonstrate phase locking of the oscillator to an additional resonant drive, and also observe the phase diffusion of the resulting state under dissipation by reconstructing the quantum state from a measurement of the characteristic function.
Cite
@article{arxiv.2301.08156,
title = {A phonon laser in the quantum regime},
author = {T. Behrle and T. L. Nguyen and F. Reiter and D. Baur and B. de Neeve and M. Stadler and M. Marinelli and F. Lancellotti and S. F. Yelin and J. P. Home},
journal= {arXiv preprint arXiv:2301.08156},
year = {2023}
}