منابع مشابه
Bethe Ansatz for Quantum Strings
Abstract: We propose Bethe equations for the diagonalization of the Hamiltonian of quantum strings on AdS5×S at large string tension and restricted to certain large charge states from a closed su(2) subsector. The ansatz differs from the recently proposed all-loop gauge theory asymptotic Bethe ansatz by additional factorized scattering terms for the local excitations. We also show that our ansa...
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Recently there has been a lot of effort to shed more light on the AdS/CFT duality conjecture by using the idea of exact integrability. On the gauge theory side this includes elucidation of integrable properties of the dilatation operator of the planar N = 4 SYM at the leading [1, 2] and higher orders [3] of perturbation theory (see also [4] for earlier account of integrable structures in QCD). ...
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Recently, it was demonstrated that one-loop energy shifts of spinning superstrings on AdS5×S agree with certain Bethe equations for quantum strings at small effective coupling. However, the string result required artificial regularization by zeta-function. Here we show that this matching is indeed correct up to fourth order in effective coupling; beyond, we find new contributions at odd powers....
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The buckling behavior of rod strings in wellbore is one of the key issues in petroleum engineering. The slender rod strings in vertical wellbore were selected as research objects. Based on the energy method, the critical load formulas of sinusoidal and helical buckling were derived for the string with the bottom of the wellbore pressure. According to the sinusoidal and helical buckling’s geomet...
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ژورنال
عنوان ژورنال: Nature
سال: 2018
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature25466