5,539 research outputs found
Boundary fermion currents and subleading order chiral anomaly in the AdS/CFT correspondence
We construct a wave-functional whose argument couples to boundary fermion
currents in the AdS/CFT correspondence. Using this we calculate the
contributions from bulk fermions to the chiral anomaly that give the subleading
order term in the exact -dependence of the chiral anomaly of
SYM. The result agrees with the calculation of Bilal & Chu.Comment: 6 page
Gravity and Yang-Mills theory
Three of the four forces of Nature are described by quantum Yang-Mills
theories with remarkable precision. The fourth force, gravity, is described
classically by the Einstein-Hilbert theory. There appears to be an inherent
incompatibility between quantum mechanics and the Einstein-Hilbert theory which
prevents us from developing a consistent quantum theory of gravity. The
Einstein-Hilbert theory is therefore believed to differ greatly from Yang-Mills
theory (which does have a sensible quantum mechanical description). It is
therefore very surprising that these two theories actually share close
perturbative ties. This article focuses on these ties between Yang-Mills theory
and the Einstein-Hilbert theory. We discuss the origin of these ties and their
implications for a quantum theory of gravity.Comment: 6 pages, based on contribution to GRF 2010, to appear in a special
edition of IJMP
Continuum strong-coupling expansion of Yang-Mills theory: quark confinement and infra-red slavery
We solve Schrödinger's equation for the ground-state of four-dimensional Yang-Mills theory as an expansion in inverse powers of the coupling. Expectation values computed with the leading-order approximation are reduced to a calculation in two-dimensional Yang-Mills theory which is known to confine. Consequently the Wilson loop in the four-dimensional theory obeys an area law to leading order and the coupling becomes infinite as the mass scale goes to zero
Symmetries of Self-Dual Yang-Mills Equations Dimensionally Reduced From (2,2) Space-time
We construct infinite-dimensional symmetries of the two dimensional equation which results from the dimensional reduction of the self-duality condition in (2, 2) signature space-time. These are symmetries of the dimensionally reduced Chalmers-Siegel action and so hold off-shell
Depressed youth, suicidality and antidepressants
The document attached has been archived with permission from the editor of the Medical Journal of Australia. An external link to the publisher’s copy is included.Robert D Goldney, Peter R Mansfield, Melissa K Raven, Jon N Jureidini, Joseph M Rey, Michael J Dudley, Duncan Toplis
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