Download e-book for kindle: From QCD Flux Tubes to Gravitational S-matrix and Back by Victor Gorbenko

By Victor Gorbenko

ISBN-10: 3319446029

ISBN-13: 9783319446028

This thesis stories numerous features of non-critical strings either as an instance of a non-trivial and solvable version of quantum gravity and as a constant approximation to the confining flux tube in quantum chromodynamics (QCD). It proposes and develops a brand new strategy for calculating the finite quantity spectrum of confining flux tubes. this system is predicated on approximate integrability and it performed a game-changing position within the research of confining strings. formerly, a theoretical interpretation of obtainable prime quality lattice info used to be very unlikely, as the traditional perturbative expansion for calculating the string spectra was once badly asymptotically diverging within the regime available at the lattice. With the hot method, power degrees could be calculated for far shorter flux tubes than used to be formerly attainable, making an allowance for a quantitative comparability with present lattice facts. the enhanced theoretical keep an eye on makes it take place that current lattice info presents powerful facts for a brand new pseudoscalar particle localized at the QCD fluxtube - the worldsheet axion. the hot approach paves a singular and promising direction in the direction of figuring out the dynamics of quark confinement.

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