Quantum pumping and dissipation in closed systems

  title={Quantum pumping and dissipation in closed systems},
  author={Doron Cohen},
  • Doron Cohen
  • Published 2005
  • Physics
  • Current can be pumped through a closed system by changing parameters (or fields) in time. Linear response theory (the Kubo formula) allows one to analyze both the charge transport and the associated dissipation effect. We make a distinction between adiabatic and non-adiabatic regimes, and explain the subtle limit of an infinite system. As an example we discuss the following question: What is the amount of charge which is pushed by a moving scatterer? In the low-frequency (DC) limit we can write… CONTINUE READING