Spontaneous chiral symmetry breaking by hydromagnetic buoyancy

被引：15

作者：

Chatterjee, Piyali ^{[1
]}

Mitra, Dhrubaditya ^{[1
]}

Brandenburg, Axel ^{[1
,2
]}

Rheinhardt, Matthias ^{[1
]}

机构：

[1] AlbaNova Univ Ctr, NORDITA, SE-10691 Stockholm, Sweden

[2] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden

来源：

PHYSICAL REVIEW E | 2011年 / 84卷 / 02期

基金：

瑞典研究理事会; 欧洲研究理事会;

关键词：

ROTATING MAGNETOCONVECTION; MAGNETIC-FIELDS; DYNAMO; HOMOCHIRALITY; DRIVEN; SHEAR;

D O I：

10.1103/PhysRevE.84.025403

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Evidence for the parity-breaking nature of the magnetic buoyancy instability in a stably stratified gas is reported. In the absence of rotation, no helicity is produced, but the nonhelical state is found to be unstable to small helical perturbations during the development of the instability. The parity-breaking nature of this magnetohydrodynamic instability appears to be the first of its kind and has properties similar to those in chiral symmetry breaking in biochemistry. Applications to the production of mean fields in galaxy clusters are discussed.

引用

页数：4

共 31 条

[1] Homochiral growth through enantiomeric cross-inhibition [J].

Brandenburg, A ;

Andersen, AC ;

Höfner, SHR ;

Nilsson, M .

ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE, 2005, 35 (03) :225-241

[2] DYNAMO-GENERATED TURBULENCE AND LARGE-SCALE MAGNETIC-FIELDS IN A KEPLERIAN SHEAR-FLOW [J].

BRANDENBURG, A ;

NORDLUND, A ;

STEIN, RF ;

TORKELSSON, U .

ASTROPHYSICAL JOURNAL, 1995, 446 (02) :741-754

[3] Homochirality in an early peptide world [J].

Brandenburg, Axel ;

Lehto, Harry J. ;

Lehto, Kirsi M. .

ASTROBIOLOGY, 2007, 7 (05) :725-732

[4] How long can left and right handed life forms coexist? [J].

Brandenburg, Axel ;

Multamaki, Tuomas .

INTERNATIONAL JOURNAL OF ASTROBIOLOGY, 2004, 3 (03) :209-219

[5] Alpha effect due to buoyancy instability of a magnetic layer [J].

Chatterjee, P. ;

Mitra, D. ;

Rheinhardt, M. ;

Brandenburg, A. .

ASTRONOMY & ASTROPHYSICS, 2011, 534

[6] Dynamo action driven by shear and magnetic buoyancy [J].

Cline, KS ;

Brummell, NH ;

Cattaneo, F .

ASTROPHYSICAL JOURNAL, 2003, 599 (02) :1449-1468

[7]

Davies CR, 2011, ASTROPHYS J, V727, DOI 10.1088/0004-637X/727/2/112

[8] Dynamo in asymmetric square convection [J].

Demircan, A ;

Seehafer, N .

GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS, 2002, 96 (06) :461-479

[9] Large-scale instability in a sheared nonhelical turbulence: Formation of vortical structures [J].

Elperin, Tov ;

Golubev, Ilia ;

Kleeorin, Nathan ;

Rogachevskii, Igor .

PHYSICAL REVIEW E, 2007, 76 (06)

[10]

FAUVE S, 1991, J PHYS II, V1, P311, DOI 10.1051/jp2:1991170

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