The observation of hyperradiance accompanied by enhanced entanglement in a hybrid optomechanical system

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–ph...

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Bibliographic Details
Published inEuropean physical journal plus Vol. 139; no. 3; p. 303
Main Authors Haider, Zeshan, Altaf, Muhammad, Nasreen, Tahira, Imran, Muhammad, Ul Islam, Rameez, Ikram, Manzoor
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 31.03.2024
Springer Nature B.V
Subjects
Applied and Technical Physics
Atomic
Atoms & subatomic particles
Complex Systems
Condensed Matter Physics
Correlation
Coupled modes
Electrons
Gravitational waves
Hybrid systems
Mathematical and Computational Physics
Molecular
Optical and Plasma Physics
Phonons
Photons
Physics
Physics and Astronomy
Quantum dots
Quantum electrodynamics
Quantum entanglement
Qubits (quantum computing)
Regular Article
Resonant interactions
Scaling laws
Theoretical
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Summary: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 ( N 2 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 g ( 2 ) ( 0 ) 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.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-024-05073-7