Phonon trapping states as a witness for generation of phonon blockade in a hybrid micromaser system
Centro de Optica e Información Cuántica, Universidad Mayor, camino la Piramide 5750, Santiago, Chile
2 Instituto de Ciencias Básicas, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Av. Ejercito 441, Santiago, Chile
3 Institute of Applied Physics, Academiei 5, MD-2028, Chişinău, Moldova
4 Instituto de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago, Chile
Accepted: 5 August 2022
Published online: 28 August 2022
In a hybrid micromaser system consisting of an optical cavity with a moving mirror connected to a low-temperature thermal bath, we demonstrate, both analytically and numerically, that for certain interaction times between a random atomic flux and the optomechanical cavity, vacuum phonon trapping states are generated. Furthermore, under the approach of the master equation with independent phonon and photon thermal baths, we show that the trapping of the phonons and photons is achieved for the same interaction times. The results also indicate that by increasing the cavity-oscillator coupling, one may generate a coherent phonon state aside from the trapping states. Within the same hybrid system, but now connected to the squeezed phonon reservoir, a phonon blockade effect can be engineered. Moreover, we identify an interconnection between the trapping and blockade effects, particularly if one approaches the vacuum trapping state, strong phonon blockade can be achieved when the system is connected with a weakly squeezed phonon reservoir.
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