Anatomy of the chiral magnetic effect in and out of equilibrium
- Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy; Brookhaven National Lab. (BNL), Upton, NY (United States). Dept. of Physics; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
- Univ. of Illinois, Chicago, IL (United States). Physics Dept.
- Univ. of Illinois, Chicago, IL (United States). Physics Dept.; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
Here, we identify a new contribution to the chiral magnetic conductivity at finite frequencies—the magnetization current. This allows us to quantitatively reproduce the known field-theoretic time-dependent (AC) chiral magnetic response in terms of kinetic theory. We also evaluate the corresponding AC chiral magnetic conductivity in two-flavor QCD plasma at weak coupling. The magnetization current results from the spin response of chiral quasiparticles to magnetic field, and is thus proportional to the quasiparticle’s g -factor. Furthemrore, in condensed matter systems, where the chiral quasiparticles are emergent and the g -factor can significantly differ from 2, this opens up the possibility of tuning the AC chiral magnetic response.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). RIKEN Research Center
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Grant/Contract Number:
- SC00112704; FG0201ER41195
- OSTI ID:
- 1377020
- Alternate ID(s):
- OSTI ID: 1349393
- Report Number(s):
- BNL-114148-2017-JA; PRVDAQ; R&D Project: PO-3
- Journal Information:
- Physical Review D, Vol. 95, Issue 5; ISSN 2470-0010
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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