Feedback Control over Quantum Sensing Based on Bose-Einstein Condensate Trapped in Two-Dimensional Ring Potential

Borisenok S.

International Journal of Advanced Natural Sciences and Engineering Researches, vol.7, no.10, pp.207-211, 2023 (Scopus)

  • Publication Type: Article / Article
  • Volume: 7 Issue: 10
  • Publication Date: 2023
  • Doi Number: 10.59287/as-ijanser.204
  • Journal Name: International Journal of Advanced Natural Sciences and Engineering Researches
  • Journal Indexes: Scopus
  • Page Numbers: pp.207-211
  • Abdullah Gül University Affiliated: Yes


Recent great progress in studying theoretical and especially experimental properties of Bose-Einstein condensate (BEC) creates a new era in developing and designing principally novel types of quantum devices, including quantum sensors for measuring nonlinear interactions, external electrical and magnetic fields, and other physical characteristics with high sensitivity. Here we discuss the application of feedback control over a quantum sensor based on the Bose-Einstein condensate trapped in two-dimensional ring potential. For a weakly interacting regime, the dynamics of such a system are modeled by three coupled complex differential master equations containing the parameter of interaction and the chemical potential parameter. The last one plays the role of control variable in sensing protocol for two-body interaction. The goal of control is to minimize the effects of the higher energy levels in BEC by driving their corresponding matrix density elements. The control algorithm is designed as Kolesnikov’s feedback forming an artificial target attractor in the dynamical system. We re-formulate Kolesnikov’s approach in the operator form to adapt it to quantum engineering processes. The control approach proposed here can be efficiently extended to different sensing protocols for detecting external magnetic fields, rotational components, and other physical characteristics of BEC interacting with the environment.