Phonon Laser in the Quantum Regime.

Autor: Behrle T; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Nguyen TL; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Reiter F; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.; Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA., Baur D; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., de Neeve B; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Stadler M; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Marinelli M; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Lancellotti F; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland., Yelin SF; Harvard University, 17 Oxford Street, Cambridge, Massachusetts 02138, USA., Home JP; Institute for Quantum Electronics, ETH Zürich, Otto-Stern-Weg 1, 8093 Zürich, Switzerland.; Quantum Center, ETH Zürich, 8093 Zürich, Switzerland.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2023 Jul 28; Vol. 131 (4), pp. 043605.
DOI: 10.1103/PhysRevLett.131.043605
Abstrakt: We demonstrate a trapped-ion system with two competing dissipation channels, implemented independently on two ion species cotrapped 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 n[over ¯]<10. 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.
Databáze: MEDLINE
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