Nature 570 205–209 (2019)
S. Pandey, H. Mas, G. Drougakis, P. Thekkeppatt, V. Bolpasi, G. Vasilakis, K. Poulios, and W. von Klitzing
DOI: 10.1038/s41586-019-1273-5
NATURE: Hypersonic Bose–Einstein condensates in accelerator rings
Tag Archives: Publication
Our paper on the Fragility of the Laughlin states is accepted in PRA
preprint at arxiv.org (1810.07609) (pdf)
Abstract:
When a Bose-Einstein condensate rotates in a purely harmonic potential with an angular frequency which is close to the trap frequency, its many-body state becomes highly correlated, with the most well-known being the bosonic Laughlin state. To take into account that in a real experiment no trapping potential is ever exactly harmonic, we introduce an additional weak, quartic potential and demonstrate that the Laughlin state is highly sensitive to this extra potential. Our results imply that achieving these states experimentally is essentially impossible, at least for a macroscopic atom number.