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NON-HERMITIAN SYSTEMS

An exceptional mass dance

Encircling a so-called exceptional point in parameter space elicits a topological response in an open system. An experiment now demonstrates topologically robust chiral spin transfer in a sea of ultracold fermions.

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Fig. 1: Chiral spin transfer from encircling of an exceptional point.

References

  1. Ashida, Y., Gong, Z. & Ueda, M. Adv. Phys. 69, 249–435 (2020).

    ADS  Article  Google Scholar 

  2. Miri, M.-A. & Alù, A. Science 363, eaar7709 (2019).

    Article  Google Scholar 

  3. Özdemir, S. K., Rotter, S., Nori, F. & Yang, L. Nat. Mater. 18, 783–798 (2019).

    ADS  Article  Google Scholar 

  4. Ren, Z. et al. Nat. Phys. https://doi.org/10.1038/s41567-021-01491-x (2022).

    Article  Google Scholar 

  5. Milburn, T. J. et al. Phys. Rev. A 92, 052124 (2015).

    ADS  Article  Google Scholar 

  6. Galitski, V. & Spielman, I. B. Nature 494, 49–54 (2013).

    ADS  Article  Google Scholar 

  7. Wu, Z. et al. Science 354, 83–88 (2016).

    ADS  Article  Google Scholar 

  8. Yao, S. & Wang, Z. Phys. Rev. Lett. 121, 086803 (2018).

    ADS  Article  Google Scholar 

  9. Zhou, L., Li, H., Yi, W. & Cui, X. Preprint at https://arxiv.org/abs/2111.04196 (2021).

  10. Guo, S., Dong, C., Zhang, F., Hu, J. & Yang, Z. Preprint at https://arxiv.org/abs/2111.04220 (2021).

Download references

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Correspondence to Wei Yi.

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Yi, W. An exceptional mass dance. Nat. Phys. 18, 370–371 (2022). https://doi.org/10.1038/s41567-022-01580-5

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