Jiawei Yan

Nov 25, 2024 | nature.com | Jiawei Yan |Weilun Qin |Ye Chen |Winfried Decking |Philipp Dijkstal |Marc Guetg | +4 more

AbstractÅngstrom and attosecond are the fundamental spatiotemporal scales for electron dynamics in various materials. Although attosecond pulses with wavelengths comparable to the atomic scales are expected to be a key tool in advancing attosecond science, producing high-power hard X-ray attosecond pulses at ångstrom wavelengths remains a formidable challenge. Here, we report the generation of terawatt-scale attosecond hard X-ray pulses using a free-electron laser in a special operation mode.

Oct 29, 2024 | nature.com | Bin Shao |Jiawei Yan

AbstractInspired by the success of large language models (LLMs), we develop a long-context generative model for genomes. Our multiscale transformer model, megaDNA, is pre-trained on unannotated bacteriophage genomes with nucleotide-level tokenization. We demonstrate the foundational capabilities of our model including the prediction of essential genes, genetic variant effects, regulatory element activity and taxonomy of unannotated sequences.

Aug 13, 2024 | dx.doi.org | Qingfei Hao |Jiawei Yan |Ying Gao |fei chen

Sep 25, 2023 | link.aps.org | Jiawei Yan |Philipp Werner

We discuss a nonequilibrium dynamical mean-field framework for simulating inhomogeneous Hubbard models with local disorders. Our approach treats electron interactions and disorders on equal footing, by considering only local dynamical fluctuations. The theory reduces to nonequilibrium dynamical mean-field theory in the presence of only electron-electron interactions and to the coherent potential approximation in noninteracting systems with disorders.

Apr 28, 2023 | biorxiv.org | Bin Shao |Jiawei Yan |Allen R. Buskirk

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