https://doi.org/10.1140/epjp/s13360-024-05073-7
Regular Article
The observation of hyperradiance accompanied by enhanced entanglement in a hybrid optomechanical system
1
National Institute of Lasers and Optronics College, Pakistan Institute of Engineering and Applied Science, 45650, Nilore, Islamabad, Pakistan
2
Pakistan Institute of Nuclear Science and Technology, 45650, Nilore, Islamabad, Pakistan
Received:
6
December
2023
Accepted:
4
March
2024
Published online:
31
March
2024
We have theoretically investigated an optomechanical system and presented the scenario of significantly enhanced bipartite photon–phonon entanglement for two qubits coupled to the single mode of the cavity. The results are compared with the one qubit case for reference. The tripartite atom–photon–phonon interaction is considered as only three-body resonant interaction, while the two-body actions are ignored under some potential approximations. Furthermore, we have studied the phenomenon of hyperradiance in which the well-known Dicke superradiant (
scaling law) can be surpassed due to the inter-atomic correlations. Jointly, a parameter regime is explored to observe the entanglement of photon–phonon pairs and their hyperradiance simultaneously. As it is important to show that the generation of photons and phonons is antibunched, the equal time second-order correlation function 
is characterized as witness. This system can be realized in Circuit Cavity Quantum Electrodynamics (CCQED) in which the direct coupling of the atom and mechanical resonator is possible.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
