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Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays.

Publication ,  Journal Article
Shen, R; Chen, T; Aliyu, MM; Qin, F; Zhong, Y; Loh, H; Lee, CH
Published in: Physical review letters
August 2023

Yang-Lee edge singularities (YLES) are the edges of the partition function zeros of an interacting spin model in the space of complex control parameters. They play an important role in understanding non-Hermitian phase transitions in many-body physics, as well as characterizing the corresponding nonunitary criticality. Even though such partition function zeroes have been measured in dynamical experiments where time acts as the imaginary control field, experimentally demonstrating such YLES criticality with a physical imaginary field has remained elusive due to the difficulty of physically realizing non-Hermitian many-body models. We provide a protocol for observing the YLES by detecting kinked dynamical magnetization responses due to broken PT symmetry, thus enabling the physical probing of nonunitary phase transitions in nonequilibrium settings. In particular, scaling analyses based on our nonunitary time evolution circuit with matrix product states accurately recover the exponents uniquely associated with the corresponding nonunitary CFT. We provide an explicit proposal for observing YLES criticality in Floquet quenched Rydberg atomic arrays with laser-induced loss, which paves the way towards a universal platform for simulating non-Hermitian many-body dynamical phenomena.

Duke Scholars

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Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

August 2023

Volume

131

Issue

8

Start / End Page

080403

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Shen, R., Chen, T., Aliyu, M. M., Qin, F., Zhong, Y., Loh, H., & Lee, C. H. (2023). Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays. Physical Review Letters, 131(8), 080403. https://doi.org/10.1103/physrevlett.131.080403
Shen, Ruizhe, Tianqi Chen, Mohammad Mujahid Aliyu, Fang Qin, Yin Zhong, Huanqian Loh, and Ching Hua Lee. “Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays.Physical Review Letters 131, no. 8 (August 2023): 080403. https://doi.org/10.1103/physrevlett.131.080403.
Shen R, Chen T, Aliyu MM, Qin F, Zhong Y, Loh H, et al. Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays. Physical review letters. 2023 Aug;131(8):080403.
Shen, Ruizhe, et al. “Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays.Physical Review Letters, vol. 131, no. 8, Aug. 2023, p. 080403. Epmc, doi:10.1103/physrevlett.131.080403.
Shen R, Chen T, Aliyu MM, Qin F, Zhong Y, Loh H, Lee CH. Proposal for Observing Yang-Lee Criticality in Rydberg Atomic Arrays. Physical review letters. 2023 Aug;131(8):080403.

Published In

Physical review letters

DOI

EISSN

1079-7114

ISSN

0031-9007

Publication Date

August 2023

Volume

131

Issue

8

Start / End Page

080403

Related Subject Headings

  • General Physics
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences