Double Quantum Dots in Carbon Nanotubes

  title={Double Quantum Dots in Carbon Nanotubes},
  author={Javier von Stecher and Bernhard Wűnsch and Mikhail D. Lukin and Eugene A. Demler and Ana Maria Rey},
  journal={Physical Review B},
aect the relative strength of the electron-electron interactions and can lead to dierent ground state transitions. In particular, they can favor a ferromagnetic ground state both in spin and valley degrees of freedom. The strong suppression of the energy gap to a ferromagnetic state can cause the disappearance of the Pauli blockade in transport experiments and thereby also limit the stability of spin-qubits in double dots based quantum information proposal. Our analysis is generalized to an… 
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