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Chiral symmetry breaking information


In particle physics, chiral symmetry breaking generally refers to the dynamical spontaneous breaking of a chiral symmetry associated with massless fermions. This is usually associated with a gauge theory such as quantum chromodynamics, the quantum field theory of the strong interaction, and it also occurs through the Brout-Englert-Higgs mechanism in the electroweak interactions of the standard model. This phenomenon is analogous to magnetization and superconductivity in condensed matter physics. The basic idea was introduced to particle physics by Yoichiro Nambu, in particular, in the Nambu–Jona-Lasinio model, which is a solvable theory of composite bosons that exhibits dynamical spontaneous chiral symmetry when a 4-fermion coupling constant becomes sufficiently large.[1] Nambu was awarded the 2008 Nobel prize in physics "for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics".

  1. ^ Y. Nambu and G. Jona-Lasinio (1961), Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. I, Phys. Rev. 122, 345-358

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Chiral symmetry breaking

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condition by Gerard 't Hooft states that the calculation of any chiral anomaly for the flavor symmetry must not depend on what scale is chosen for the calculation...

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magnetic catalysis is specifically associated with spontaneous breaking of flavor or chiral symmetry in quantum field theory, which is enhanced or triggered...

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denoted the pseudo-vector or chiral current, is the conserved current associated to the chiral symmetry or axial symmetry of a system. According to Noether's...

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field. A chiral condensate is an example of a fermionic condensate that appears in theories of massless fermions with chiral symmetry breaking, such as...

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exhibit unexpected rich phenomena like confinement with and without chiral symmetry breaking and a new kind of electric-magnetic duality – Seiberg duality....

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to use Landau symmetry-breaking theory to describe the chiral spin state. They identified the chiral spin state as a state that breaks the time reversal...

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MR 1303306 Seiberg, N.; Witten, E. (1994b), "Monopoles, duality and chiral symmetry breaking in N=2 supersymmetric QCD", Nuclear Physics B, 431 (3): 484–550...

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Viedma ripening or attrition-enhanced deracemization is a chiral symmetry breaking phenomenon observed in solid/liquid mixtures of enantiomorphous (racemic...

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than a result of chiral symmetry breaking. The rho mesons can be thought of as the gauge bosons of a spontaneously broken gauge symmetry whose local character...

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temperature, the field causes spontaneous symmetry breaking during interactions. The breaking of symmetry triggers the Higgs mechanism, causing the bosons...

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breaking event in the formation of the universe, the final one being chiral symmetry breaking in the quark sector. This has two related effects: Via the Higgs...

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Quantum chromodynamics binding energy

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through mass–energy equivalence. This phenomenon is related to chiral symmetry breaking. In the case of nucleons – protons and neutrons – QCD binding energy...

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Nuclear force

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interactions. Additionally, chiral symmetry breaking can be analyzed in terms of an effective field theory (called chiral perturbation theory) which allows...

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