Investigation of population transfer in the two coupled Λ-type three-level systems based on stimulated Raman adiabatic passage

Document Type : Articles

Authors

• Mehdi Hosseini ¹
• Fatemeh Ahmadinouri ²
• Ali hatami ¹

¹ Shiraz University of Technology

² Amirkabir University of Technology

10.30495/jopn.2024.32524.1301

Abstract

Stimulated Raman adiabatic passage (STIRAP) is a powerful method that allows efficient and coherent transfer of population between different quantum states. In this study, we delve into the investigation of population transfer in two coupled Λ-type three-level systems using STIRAP technique. Our research focuses on understanding the dynamics and control of population transfer within these systems. The system Hamiltonian is constructed based on physical condition of the coupled structure, then the respective time dependent Schrodinger equation is solved numerically. By analyzing the adiabatic conditions, we explore the interaction between the two coupled Λ-type systems and examine the role of various parameters, such as time of the peak amplitude, and determines the pulse width. Furthermore, we observe the impact of interaction on the transition probability, comparing coupled systems to uncoupled systems. The findings of this study shed light on the underlying mechanisms of STIRAP and contribute to the development of advanced quantum control techniques.

Keywords

• population transfer
• STIRAP
• coupled systems

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