Visualization of the interaction dynamics between a two-level atom and a graphene sheet covered by a laser field

Abstract

This study investigates the detection of two discrete quantum phenomena arising from the interaction between a single two-level atom, SU(1,1)quantum systems, and a graphene membrane in the presence of a laser field. We employ quantum skew information and second-order Rényi entropy as measures to discern non-classicality and entropy, respectively. Two distinct scenarios are considered addressing the system: first, when atomic frequency significantly surpasses laser coupling; second, when the atomic frequency is considerably lower than classical laser coupling. In the former case, both phenomena hinge upon initial preparation conditions for the SU(1,1)coherent cavity, whereas, in the second scenario, the non-classicality and entropy are influenced by the coherent graphene. Notably, we find that the detuning parameter enhances the information of the composite system when the intensities of the coherent cavity and graphene membrane are substantial.

Keywords

• SU(1,1) graphene membrane
• Laser field
• Quantum skew information
• Renyi entropy