Conductance through strongly interacting rings in a magnetic field Academic Article


  • Physica B: Condensed Matter


  • We study the conductance through finite Aharonov-Bohm rings of interacting electrons weakly coupled to non-interacting leads at two arbitrary sites. This model can describe an array of quantum dots with a large charging energy compared to the interdot overlap. As a consequence of the spin-charge separation, which occurs in these highly correlated systems, the transmittance is shown to present pronounced dips for particular values of the magnetic flux piercing the ring. We analyze this effect by numerical and analytical means and show that the zero-temperature equilibrium conductance in fact presents these striking features which could be observed experimentally.

publication date

  • 2009-8-1


  • 404


  • Electrons
  • Magnetic fields
  • Magnetic flux
  • Piercing
  • Semiconductor quantum dots
  • Temperature
  • charging
  • electrons
  • energy
  • magnetic fields
  • magnetic flux
  • piercing
  • polarization (charge separation)
  • quantum dots
  • rings
  • temperature
  • transmittance

International Standard Serial Number (ISSN)

  • 0921-4526

number of pages

  • 4

start page

  • 2270

end page

  • 2273