Minimal-excitation states for electron quantum optics using levitons

@article{Dubois2013MinimalexcitationSF,
  title={Minimal-excitation states for electron quantum optics using levitons},
  author={J-M. Dubois and T. Jullien and F. Portier and P A Roche and Antonella Cavanna and Yizheng Jin and W. Wegscheider and Preden Roulleau and D. Christian Glattli},
  journal={Nature},
  year={2013},
  volume={502},
  pages={659-663}
}
The on-demand generation of pure quantum excitations is important for the operation of quantum systems, but it is particularly difficult for a system of fermions. This is because any perturbation affects all states below the Fermi energy, resulting in a complex superposition of particle and hole excitations. However, it was predicted nearly 20 years ago that a Lorentzian time-dependent potential with quantized flux generates a minimal excitation with only one particle and no hole. Here we… CONTINUE READING
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