Target Repeller Feedback Control over the Ergotropy of Quantum Battery


Borısenok S.

6th INTERNATIONAL CONFERENCE ON ENGINEERING AND NATURAL SCIENCES (ICENS), Belgrade, Serbia, 21 - 25 October 2020, pp.15-19

  • Publication Type: Conference Paper / Full Text
  • City: Belgrade
  • Country: Serbia
  • Page Numbers: pp.15-19

Abstract

Here we discuss the model of a single-qubit based quantum battery (QB) in the form of quantum oscillator in a Markovian bath environment. For the effective control we apply here Kolesnikov’s type feedback algorithm, but we re-formulate it to produce in the system a target repeller. This method makes the effective design of the control fields charging the battery; the corresponding control signals could be restored explicitly from the dynamical equations. Using this novel approach, we investigate the control over the quantum battery ergotopic characteristics, including the ergotropy and the charging power. The proposed algorithm could be applied also for different physical realizations of quantum batteries: Dicke QB, spin QB, harmoniс oscillator QB; and for all working stages of the QB (charging, long time storage and the energy transfer to a consumption center or engine).