Coherent control of quantum and entanglement dynamics via periodic modulations in optomechanical semi-conductor resonator coupled to quantum-dot excitons

• URL: http://arxiv.org/abs/2006.11490v2
• Date: Thu, 23 Jul 2020 11:47:07 GMT
• Title: Coherent control of quantum and entanglement dynamics via periodic modulations in optomechanical semi-conductor resonator coupled to quantum-dot excitons
• Authors: Vijay Bhatt, Pradip K. Jha, Aranya B. Bhattacherjee, Souri Banerjee
• Abstract summary: We study the influence of simultaneously modulating the input laser intensity and quantum dot (QD) resonance frequecy on the mean-field dynamics. A remarkably high degree of entanglement can be achieved by modulating only the QD frequency. This study opens up new possibilities for optimal control strategies and can be used for data signal transfer and storage in quantum communication platforms.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We systematically study the influence of simultaneously modulating the input laser intensity and quantum dot (QD) resonance frequecy on the mean-field dynamics, fluctuation energy transfer and entanglement in a optomechanical semi-conductor resonator embedded with a QD. We show that the modulation and the hybrid system can be engineered to attain the desired mean-field values, control the fluctuation energy transfer and the entanglement between the various degrees of freedom. A remarkably high degree of entanglement can be achieved by modulating only the QD frequency. The interplay between the two modulations leads to an entanglement which lies between that generated solely by modulating either the QD or the pump laser intensity. A transition from low stationary to large dynamical entanglement occurs as we switch on the modulation. This study opens up new possibilities for optimal control strategies and can be used for data signal transfer and storage in quantum communication platforms.

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