Quantum stirring of particles in closed devices

  title={Quantum stirring of particles in closed devices},
  author={G. Rosenberg and Doron Cohen},
  journal={Journal of Physics A},
  • G. Rosenberg, Doron Cohen
  • Published 2006
  • Physics
  • Journal of Physics A
  • We study the quantum analogue of stirring of water inside a cup using a spoon. This can be regarded as a prototype example for quantum pumping in closed devices. The current in the device is induced by translating a scatterer. Its calculation is done using the Kubo formula approach. The transported charge is expressed as a line integral that encircles chains of Dirac monopoles. For simple systems, the results turn out to be counter-intuitive, e.g. as we move a small scatterer 'forward' the… CONTINUE READING
    8 Citations


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