Qi Zhou

Oct 1, 2024 | link.aps.org | Chenwei Lv |Ren Zhang |Xi'an Jiaotong |Qi Zhou

Krylov complexity has emerged as a probe of operator growth in a wide range of nonequilibrium quantum dynamics. However, a fundamental issue remains in such studies: the definition of the distance between basis states in Krylov space is ambiguous. Here we show that Krylov complexity can be rigorously established from circuit complexity when dynamical symmetries exist.

Sep 16, 2024 | mdpi.com | Meng Chen |Hechi Wang |Zhanfang Hu |Qi Zhou

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Jun 5, 2024 | nature.com | wenhui Xu |Qi Zhou

AbstractWhen single-particle dynamics are suppressed in certain strongly correlated systems, dipoles arise as elementary carriers of quantum kinetics. These dipoles can further condense, providing physicists with a rich realm to study fracton phases of matter. Whereas recent theoretical discoveries have shown that an unconventional lattice model may host a dipole condensate as the ground state, we show that dipole condensates prevail in bosonic systems due to a self-proximity effect.

Apr 24, 2024 | nature.com | Jiaqiang Wang |Yiwei Zhang |Guihai Feng |Falong Lu |Leyun Wang |Wei Li | +1 more

AbstractThe heterogeneity of CARM1 controls first cell fate bias during early mouse development. However, how this heterogeneity is established is unknown. Here, we show that Carm1 mRNA is of a variety of specific exon-skipping splicing (ESS) isoforms in mouse two-cell to four-cell embryos that contribute to CARM1 heterogeneity. Disruption of paraspeckles promotes the ESS of Carm1 precursor mRNAs (pre-mRNAs).

Feb 25, 2024 | onlinelibrary.wiley.com | Wenbin Wu |Qi Zhou |Qiang Gao

Objectives To develop an instrument to facilitate the risk assessment of falls in older outpatients. Design A quantitative methodological study using the cross-sectional data. Methods This study enrolled 1988 older participants who underwent comprehensive geriatric assessment (CGA) in an outpatient clinic from May 2020 to November 2022. The history of any falls (≥1 falls in a year) and recurrent falls (≥2 falls in a year) were investigated.