Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2020, Vol. 31 ›› Issue (6): 56 doi: 10.1007/s41365-020-00764-z

• Invited Review Article • Previous Articles     Next Articles

Anomalous chiral transports and spin polarization in heavy-ion collisions

Yu-Chen Liu 1, Xu-Guang Huang1,2   

  1. 1 Physics Department and Center for Particle Physics and Field Theory, Fudan University, Shanghai 200433, China
    2 Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Fudan University, Shanghai 200433, China
  • Received:2020-02-12 Revised:2020-03-27 Accepted:2020-03-30
  • Contact: Xu-Guang Huang
  • Supported by:
    This work was supported by National Natural Science Foundation of China (Nos. 11535012 and 11675041).
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Yu-Chen Liu, Xu-Guang Huang. Anomalous chiral transports and spin polarization in heavy-ion collisions.Nuclear Science and Techniques, 2020, 31(6): 56     doi: 10.1007/s41365-020-00764-z

Abstract: Relativistic heavy-ion collisions create hot quark–gluon plasma as well as very strong electromagnetic (EM) and fluid vortical fields. The strong EM field and vorticity can induce intriguing macroscopic quantum phenomena such as chiral magnetic, chiral separation, chiral electric separation, and chiral vortical effects as well as the spin polarization of hadrons. These phenomena provide us with experimentally feasible means to study the nontrivial topological sector of quantum chromodynamics, the possible parity violation of strong interaction at high temperature, and the subatomic spintronics of quark–gluon plasma. These studies, both in theory and in experiments, are strongly connected with other subfields of physics such as condensed matter physics, astrophysics, and cold atomic physics, and thus form an emerging interdisciplinary research area. We give an introduction to the aforementioned phenomena induced by the EM field and vorticity and an overview of the current status of experimental research in heavy-ion collisions. We also briefly discuss spin hydrodynamics as well as chiral and spin kinetic theories.

Key words: Heavy-ion collision, Chiral magnetic effect, Spin polarization, Quark–gluon plasma