Boosting macroscopic entanglement in charged cavity optomechanical system through coherent feedback loop

Mekonnen, Habtamu Dagnaw; Tesfahannes, Tesfay Gebremariam; Darge, Tewodros Yirgashewa; Eshete, Sitotaw

doi:10.1007/s12596-024-01926-7

J Opt

2024

DOI: 10.1007/s12596-024-01926-7

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Boosting macroscopic entanglement in charged cavity optomechanical system through coherent feedback loop

Habtamu Dagnaw Mekonnen,

Tesfay Gebremariam Tesfahannes,

Tewodros Yirgashewa Darge

et al.

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2024

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Cited by 4 publications

References 54 publications

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Quantum Effects in a Second-Order Coupled Electro-Optomechanical System with Kerr Medium

Mahajan,

Aggarwal,

Singh

et al. 2024

Int J Theor Phys

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Quantum Effects in a Second-Order Coupled Electro-Optomechanical System with Kerr Medium

Mahajan,

Aggarwal,

Singh

et al. 2024

Int J Theor Phys

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Enhancement of opto-electro-mechanical entanglement through three-level atoms

Kussia,

Darge,

Tesfahannes

et al. 2024

Physics Letters A

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Enhancing quantum coherence in hybrid optomechanical systems with coherent feedback, atomic ensembles, and optical parametric amplifier

Mekonnen,

Tesfahannes,

Darge

et al. 2024

Phys. Scr.

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We theoretically investigate quantum coherence in a hybrid optomechanical system with a fixed mirror, mechanical oscillators, two-level atoms, and an optical parametric amplifier (OPA) within the cavity. A coherent feedback loop is created by redirecting part of the cavity's output field back into the cavity via an asymmetric beam splitter. Using numerical solutions of the Lyapunov equation and steady-state mean values, we quantify the Gaussian quantum coherence of the system. Our results show that the OPA, coherent feedback, atomic ensembles, and strong laser power significantly enhance quantum coherence, while higher atomic decay rates, relative phase, and temperatures reduce it. This approach not only boosts quantum coherence but also improves resilience to temperature fluctuations, providing a robust foundation for quantum information processing.

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Boosting macroscopic entanglement in charged cavity optomechanical system through coherent feedback loop

Cited by 4 publications

References 54 publications

Quantum Effects in a Second-Order Coupled Electro-Optomechanical System with Kerr Medium

Quantum Effects in a Second-Order Coupled Electro-Optomechanical System with Kerr Medium

Enhancement of opto-electro-mechanical entanglement through three-level atoms

Enhancing quantum coherence in hybrid optomechanical systems with coherent feedback, atomic ensembles, and optical parametric amplifier

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