منابع مشابه
spontaneously-broken chiral symmetry
We present and discuss the properties and the main results of a cosmological model with a spontaneously-broken chiral symmetry. The model contains and relates dynamically, two spin-zero fields. The scalar field can provide the dynamical basis for inflation in the early universe. The pseudoscalar, Goldstone field can provide an early, small residual vacuum energy density, the absolute value of w...
متن کاملRotating optical microcavities with broken chiral symmetry.
We demonstrate in open microcavities with broken chiral symmetry that quasidegenerate pairs of copropagating-wave resonances are transformed by rotation to counterpropagating ones, leading to a striking change of emission directions. The rotation-induced relative change in output intensity increases exponentially with cavity size, in contrast to the linear scaling of the Sagnac effect. By tunin...
متن کاملThe Georgi “Avatar” of Broken Chiral Symmetry in Quantum Chromodynamics
We establish that in Quantum Chromodynamics (QCD) at zero temperature, SUL+R(NF ) exhibits the vector mode conjectured by Georgi and SUL−R(NF ) is realized in either the Nambu-Goldstone mode or else Q5 is also screened from view at infinity. The Wigner-Weyl mode is ruled out unless the beta function in QCD develops an infrared stable zero. PACS numbers: 11.3 Qc., 11.30.Rd., 12.38.Aw Typeset usi...
متن کاملChiral Symmetry and Chiral Symmetry Breaking*
Lectures presented at the session on " Recent Developments in Quantum Field Theory and Statistical Mechanics " of the Les Houches Summer School of Theoretical Physics August 1982 *Nork supported by the
متن کاملDetecting Broken PT-Symmetry
A fundamental problem in the theory of PT-invariant quantum systems is to determine whether a given system “respects” this symmetry or not. If not, the system usually develops non-real eigenvalues. It is shown in this contribution how to algorithmically detect the existence of complex eigenvalues for a given PT-symmetric matrix. The procedure uses classical results from stability theory which q...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1972
ISSN: 0033-068X
DOI: 10.1143/ptp.47.958