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Majorana fermions

A quantum critical approach

Coupling a single electron level to dissipative leads allows the study of unusual behaviour near a quantum critical point, including the fractionalization of the resonant level into two Majorana fermions.

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Figure 1: An electron (blue dot), asymmetrically coupled to two dissipative leads, tunnels from the quantum dot (represented by the central blue peak confined between two barriers) to the more strongly coupled lead, where it launches a bosonic mode.

References

  1. Sachdev, S. Quantum Phase Transitions (Cambridge Univ. Press, 1999).

    MATH  Google Scholar 

  2. Carr, L. D. (ed.) Understanding Quantum Phase Transitions (CRC, 2010).

    Book  Google Scholar 

  3. Mebrahtu, H. T. et al. Nature Phys. 9, 732–737 (2013).

    Article  ADS  Google Scholar 

  4. Bockrath, M. et al. Science 275, 1922–1925 (1997).

    Article  Google Scholar 

  5. Kane, C. L. & Fisher, M. P. A. Phys. Rev. B 46, 15233–15262 (1992).

    Article  ADS  Google Scholar 

  6. Mebrahtu, H. T. et al. Nature 488, 61–64 (2012).

    Article  ADS  Google Scholar 

  7. Giamarchi, T. Quantum physics in One Dimension (Oxford Univ. Press, 2004).

    MATH  Google Scholar 

  8. Mourik, V. et al. Science 336, 1003–1007 (2012).

    Article  ADS  Google Scholar 

  9. Rokhinson, L. P. et al. Nature Phys. 8, 795–799 (2012).

    Article  ADS  Google Scholar 

  10. Emery, V. J. & Kivelson, S. Phys. Rev. B 46, 10812–10817 (1992).

    Article  ADS  Google Scholar 

  11. Eggert, S. & Affleck, A. Phys. Rev. B 46, 10866–10883 (1992).

    Article  ADS  Google Scholar 

  12. Greiner, M. et al. Nature 415, 39–44 (2002).

    Article  ADS  Google Scholar 

Download references

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Correspondence to Lucas Peeters or David Goldhaber-Gordon.

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Peeters, L., Goldhaber-Gordon, D. A quantum critical approach. Nature Phys 9, 695–696 (2013). https://doi.org/10.1038/nphys2804

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