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The correspondence between theories in anti-de Sitter space and conformalfield theories in physical space-time leads to an analytic, semiclassical modelfor strongly-coupled QCD which has scale invariance at short distances andcolor confinement at large distances. Light-front holography is a remarkablefeature of AdS/CFT: it allows hadronic amplitudes in the AdS fifth dimension tobe mapped to frame-independent light-front wavefunctions of hadrons in physicalspace-time, thus providing a relativistic description of hadrons at theamplitude level. Some novel features of QCD are discussed, including theconsequences of confinement for quark and gluon condensates and the behavior ofthe QCD coupling in the infrared. We suggest that the spatial support of QCDcondensates is restricted to the interior of hadrons, since they arise due tothe interactions of confined quarks and gluons. Chiral symmetry is thus brokenin a limited domain of size of the inverse pion mass in analogy to the limitedphysical extent of superconductor phases. A new method for computing thehadronization of quark and gluon jets at the amplitude level, an eventamplitude generator, is outlined.

Light-Front Holography and Hadronization at the Amplitude Level