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Nuclear Theory·nucl-th

Wednesday·August 31, 2016

11 papers—9 primary·2 cross-listed

All11Primary9Cross-lists2
  1. 10

    [Submitted on 30 Aug 2016] (cross-list from hep-ph)

    The influence of chiral chemical potential, parallel electric and magnetic fields on the critical temperature of QCD

    M. Ruggieri🇨🇳 · Z. Y. Lu🇨🇳 · G. X. Peng🇨🇳

    We study the influence of external electric, , and magnetic, , fields parallel to each other, and of a chiral chemical potential, , on the chiral phase transition of Quantum Chromodynamics. Our theoretical framework is a Nambu-Jona-Lasinio model with a contact interaction. Within this model we compute the critical temperature of chiral symmetry restoration, , as a function of the chiral chemical potential and field strengths. We find that the fields inhibit and enhances chiral symmetry breaking, in agreement with previous studies.

    Comments:
    11 pages, 7 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Lattice (hep-lat); Nuclear Theory (nucl-th)
    arXiv:
    1608.08310 [pdf]
    PRD(2016)·32 citations
  2. 11

    [Submitted on 30 Aug 2016] (cross-list from hep-th)

    Anomalous transport from holography: Part I

    Yanyan Bu🇮🇱 · Michael Lublinsky🇮🇱 · Amir Sharon🇮🇱

    We revisit the transport properties induced by the chiral anomaly in a charged plasma holographically dual to anomalous Maxwell theory in Schwarzschild-. Off-shell constitutive relations for vector and axial currents are derived using various approximations generalising most of known in the literature anomaly-induced phenomena and revealing some new ones. In a weak external field approximation, the constitutive relations have all-order derivatives resummed into six momenta-dependent transport coefficient functions: the diffusion, the electric/magnetic conductivity, and three anomaly induced functions. The latter generalise the chiral magnetic and chiral separation effects. Nonlinear transport is studied assuming presence of constant background external fields. The chiral magnetic effect, including all order nonlinearity in magnetic field, is proven to be exact when the magnetic field is the only external field that is turned on. Non-linear corrections to the constitutive relations due to electric and axial external fields are computed.

    Comments:
    v1: 42 pages, 10 multi-figures, 3 appendices; v2: minor corrections introduced and a few refs added
    Subjects:
    High Energy Physics — Theory (hep-th); Mesoscale and Nanoscale Physics (cond-mat.mes-hall); High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1608.08595 [pdf]
    JHEP(2016)·17 citations

Affiliations

first authorsco-authorsvia INSPIRE