Estimate of the primordial magnetic field helicity

被引：138
作者：
Vachaspati, T
机构：
[1] Tata Inst Fundamental Res, Dept Astron & Astrophys, Colaba 400005, Mumbai, India
[2] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 25期
关键词：
D O I：
10.1103/PhysRevLett.87.251302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Electroweak baryogenesis proceeds via changes in the non-Abelian Chem-Simons number. It is argued that these changes generate a primordial magnetic field with left-handed helicity. The helicity density of the primordial magnetic field today is then estimated to be given by similar to 10(2)n(b), where n(b) similar to 10(-6) /cm(3) is the present cosmological baryon number density. With certain assumptions about the inverse cascade we find that the field strength at recombination is similar to 10(-13) G on a comoving coherence scale similar to0.1 pc.
引用
收藏
页码：251302 / 1
页数：4
相关论文
共 50 条
  • [41] On the primordial magnetic field from domain walls
    Cea, P
    Tedesco, L
    INTERNATIONAL JOURNAL OF MODERN PHYSICS D, 2003, 12 (04): : 663 - 666
  • [42] The primordial magnetic field in our cosmic backyard
    Hutschenreuter, Sebastian
    Dorn, Sebastian
    Jasche, Jens
    Vazza, Franco
    Paoletti, Daniela
    Lavaux, Guilhem
    Ensslin, Torsten A.
    CLASSICAL AND QUANTUM GRAVITY, 2018, 35 (15)
  • [43] Production of primordial magnetic field in protogalactic tori
    Chakrabarti, Sandip K., 1600, Oxford University Press (252):
  • [44] No primordial magnetic field from domain walls
    Voloshin, MB
    PHYSICS LETTERS B, 2000, 491 (3-4) : 311 - 316
  • [45] NEUTRON OSCILLATION AND THE PRIMORDIAL MAGNETIC-FIELD
    SIVARAM, C
    KRISHAN, V
    ASTROPHYSICAL LETTERS & COMMUNICATIONS, 1983, 23 (03) : 139 - 143
  • [46] A possible dynamical effect of a primordial magnetic field
    deAraujo, JCN
    Opher, R
    ASTROPHYSICAL JOURNAL, 1997, 490 (02) : 488 - 492
  • [47] NEUTRON OSCILLATIONS AND THE PRIMORDIAL MAGNETIC-FIELD
    SARKAR, S
    ASTROPHYSICAL LETTERS & COMMUNICATIONS, 1989, 27 (05) : 293 - 297
  • [48] Primordial magnetic field generated in natural inflation
    AlMuhammad, Anwar S.
    Lopez-Mobilia, Rafael
    GENERAL RELATIVITY AND GRAVITATION, 2015, 47 (11)
  • [49] Ferromagnetic domain wall and a primordial magnetic field
    Iwazaki, A
    PHYSICAL REVIEW D, 1997, 56 (04) : 2435 - 2438
  • [50] Constraints on the primordial magnetic field from σ8
    Yamazaki, Dai G.
    Ichiki, Kiyotomo
    Kajino, Toshitaka
    Mathews, Grant J.
    PHYSICAL REVIEW D, 2008, 78 (12)
12345