Imaging the Wigner Crystal of Electrons in One Dimension

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• Rose Davies - University of Birmingham
• Friday 07 June 2019, 13:00-14:00
• Theory Library.

If you have a question about this talk, please contact Manjinder Kainth.

The quantum crystal of electrons, predicted more than 80 years ago by Eugene Wigner, remains one of the most elusive states of matter. In this study, they observed the one-dimensional Wigner crystal directly by imaging its charge density in real space. To image, with minimal invasiveness, the many-body electronic density of a carbon nanotube, they used another nanotube as a scanning-charge perturbation. The images they obtained of a few electrons confined in one dimension match the theoretical predictions for strongly interacting crystals. The quantum nature of the crystal emerges in the observed collective tunneling through a potential barrier. These experiments provide the direct evidence for the formation of small Wigner crystals and open the way for studying other fragile interacting states by imaging their many-body density in real space.

This talk is part of the Theoretical Physics Journal Club and Group Meeting series.

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• Theoretical Physics Journal Club and Group Meeting
• Theory Library

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