Enhancing photon entanglement in a three-mode optomechanical system via imperfect phonon measurements

• Published in: Communications in theoretical physics Vol. 74; no. 5; pp. 55105 - 55114
• Main Authors: Qiu, Jing, Chen, Dongni, Wang, Ying-Dan, Chesi, Stefano
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.05.2022
• Subjects: entanglement concentration; imperfect phonon measurements; maximum entanglement; optomechanical system; typical entanglement

By considering a 3-mode optomechanical system formed by two cavities interacting with a common mechanical mode, we demonstrate that phonon-counting measurements lead to a significant enhancement of entanglement in the output of the two cavities. This conclusion still holds for an inefficient detecto...