Education

1995-1998 Ph.D. in Theoretical Physics, Jilin University

1989-1992 Master's Degree in Theoretical Physics, Sichuan Normal University/Sichuan University

1982-1986 Bachelor's Degree in Physics, Qufu Normal University

Experience

2022-Present Senior Researcher, Hefei National Laboratory

2012-Present Researcher/Professor, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences

2009-2012 Senior Follow, Australian National University

2003-2009 Research Fellow, Australian National University,

2000-2003 Research Fellow, Federal University of Rio Grande do Sul, Brazil

1999-2000 Postdoctoral Researcher, Federal University of Sao Carlos, Brazil

1998-1999 Postdoctoral Researcher, Chemnitz University of Technology, Germany

Overview of Academic Research

Prof. Xi-Wen Guan has long been engaged in research on the exact solutions of quantum many-body physical systems. The exactly solvable models involved in his research include quantum degenerate gases, low-dimensional spin material models, strongly correlated electronic systems, light-matter interaction systems, and quantum impurity problems. His main innovative contributions lie in developing theoretical methods for exactly solvable models, applying complex exact solvable models to realistic physics in condensed matter physics, ultracold atomic physics systems, and quantum metrology, and discovering concise and elegant universal laws of many-body physics from complex Bethe equations.

His major achievements include:

* He established a new analytical method for calculating universal laws in one-dimensional quantum many-body systems, uncovering important many-body universal phenomena such as spin-charge separation, Tomonaga-Luttinger liquids, incoherent liquids, and the microscopic principles of quantum criticality, as well as missing universal laws in this field.

*He collaborated with experimental teams to complete definitive experimental verifications of these landmark universal laws, expanding the application scope of exactly solvable models and promoting their use in quantum technology.

*Relevant achievements have been published in Science, Review of Modern Physics, Report on Progress in Physics, Advance in Physics, Nature sub-journals, Physical Review Letters (PRL), and other journals.

Research Directions/Fields:‌

Low-dimensional ultracold atomic many-body systems

Quantum many-body properties of one-dimensional strongly correlated electron systems, spin systems, and light-matter interaction systems

Quantum precision measurement theory

Major Honors and Awards

2024 First Prize of the Hubei Provincial Natural Science Award (First achiever)

2024 Elected as a Fellow of the American Physical Society (APS)

2022 First Outstanding Talent Award of the Innovation Academy for Precision Measurement Science and Technology, CAS.

Representative Publications

1.X.-W.  Guan*, M. T. Batchelor*, C.  Lee*, Fermi gases in one dimension: From Bethe Ansatz to experiments,  Rev.  Mod.  Phys.  85, 1633 (2013), 59 pages.

2.Ruwan Senaratne, Danyel Cavazos-Cavazos, Sheng Wang, Feng He, Ya-Ting Chang, Aashish Kafle, Han Pu, Xi-Wen Guan*, Randall G. Hulet*, Spin-charge separation in a 1D Fermi gas with tunable interactions，Science 376, 1305 (2022), 4 pages.

3.B. Yang, Y.-Y. Chen, Y.-G. Zheng, H. Sun, H.-N. Dai, X.-W. Guan*, Zhen-Sheng Yuan*, Jian-Wei Pan*, Observation of Quantum Criticality and Luttinger Liquid in One-dimensional Bose Gases, Phys.  Rev.  Lett. 119, 165701 (2017), 5 pages.

4.X.-W. Guan*, M.T. Batchelor, C. Lee and M. Bortz, Phase Transitions and Pairing Signature in Strongly Attractive Fermi Atomic Gases, Phys.  Rev.  B. 76, 085120 (2007), 9 pages.

5.M.T. Batchelor, X. W. Guan, N. Oelkers, the 1D interacting anyon gas: low-energy properties and Haldane exclusion statistics, Phys.  Rev.  Lett. 96, 210402 (2006), 4 pages.

6.M.T. Batchelor, M. Bortz, X. W. Guan and  N. Oelkers, Evidence for the super Tonks-Girardeau gas, J. Stat. Mech. (2005) L10001, 9 pages.

7.M.T. Batchelor，X. W. Guan, N. Oelkers and Zengo Tsuboi, Integrable models and quantum spin ladders: comparison between theory and experiment for the strong coupling compounds, Adv. in Phys. 56, 465 (2007), 78 pages.

8.X. W. Guan*, M.T. Batchelor, C Lee and H.-Q. Zhou, Trions, pairing and phase transitions in one-dimensional strongly attractive three-component ultracold fermions, Phys. Rev. Lett.  100, 200401 (2008), 4 pages.

9.X.-W. Guan*, X. G. Yin, A. Foerster, M. T. Batchelor, C. H. Lee, H. Q. Lin*, Wilson ratio of Fermi gases in one dimension, Phys.  Rev.  Lett.  111, 130401 (2013), 4 pages.

10.Xi-Wen Guan*, Peng He, New trends in quantum integrability: Recent experiments with ultracold atoms,  Rep. Prog. Phys. 85, 114001 (2022) , 29 pages.

11.Murray T. Batchelor, X. W. Guan, Norman Oelkers, Kazumitsu Sakai, Zengo Tsuboi, Angela Foerster, Exact results for the thermal and magnetic properties of strong coupling ladder compounds,  Phys. Rev. Lett. 1,  217202 (2003), 4 pages.

12.Y.-Y. Chen, Y.-Z. Jiang, X.-W. Guan* and Q. Zhou*, Critical Phenomena of Contact near Phase Transitions, Nature Communications 5, 5140 (2014), 7pages.

13.Yang-Yang Chen, Gentaro Watanabe, Yi-Cong Yu, Xi-Wen Guan*, Adolfo del Campo*, An Interaction-Driven Many-Particle Quantum Heat Engine: Universal Behavior, NPJ- Quantum Information, 5, 88 (2019), 6 pages.

14.E. Zhao, X.-W. Guan, W. Vincent Liu*, M. T. Batchelor and M. Oshikawa, Analytic thermodynamics and thermometry of Gaudin-Yang Fermi gases, Phys.  Rev.  Lett.  103, 140404 (2009), 4 pages.

15.Haiyuan Zou,  Erhai Zhao, Xi-Wen Guan, and W. Vincent Liu, Exactly Solvable Points and Symmetry Protected Topological Phases of Quantum Spins on a Zig-Zag Lattice, Phys. Rev. Lett. 22, 180401 (2019), 4 pages.

16.Feng He, Yu-Zhu Jiang, Hai-Qing Lin*, Randall G. Hulet, Han Pu, Xi-Wen Guan*, Emergence and disruption of spin-charge separation in one-dimensional repulsive fermions, Phys. Rev. Lett. 125, 190401 (2020),  7 pages.

17.Xiaoming Cai, Hongting Yang, Hai-Long Shi, Chao-Hong Li*, Natan Andrei, Xi-Wen Guan*, Multi-particle quantum walks and Fisher information in one-dimensional lattices, Phys. Rev. Lett. 127, 100406 (2021),  7 pages.

18.Xibo Zhang, Yang-Yang Chen, Longxiang Liu, Youjin Deng, and Xi-Wen Guan, Interaction-induced particle-hole symmetry breaking and fractional exclusion statistics, National Science Review 9, nwac027, (2022), 25 pages.

19.Hai-Long Shi, Xi-Wen Guan, Jing Yang*, Universal shot-noise limit for quantum metrology with local Hamiltonians,  Phys. Rev. Lett. 132, 100803 (2024), 4 pages

20.Jia-Jia Luo, Han Pu, Xi-Wen Guan*, Exact results of one-dimensional repulsive Hubbard model, Report on Progress in Physics (Original Research), 87, 117601 (2024) 33 pages.