Browsing by Subject "Integrable Field Theories"

Browsing by Subject "Integrable Field Theories"

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  • Handling handles. Part II. Stratification and data analysis 
    Bargheer, T.; Caetano, J.; Fleury, T.; Komatsu, S.; Vieira, P. (Berlin : Springer, 2018)
    In a previous work [1], we proposed an integrability setup for computing nonplanar corrections to correlation functions in N=4 super-Yang-Mills theory at any value of the coupling constant. The procedure consists of drawing ...
  • Integrability, intertwiners and non-linear algebras in Calogero models 
    Carrillo-Morales, Francisca; Correa, Francisco; Lechtenfeld, Olaf (Berlin ; Heidelberg : Springer, 2021)
    For the rational quantum Calogero systems of type A1⊕A2, AD3 and BC3, we explicitly present complete sets of independent conserved charges and their nonlinear algebras. Using intertwining (or shift) operators, we include ...
  • The multi-Regge limit from the Wilson loop OPE 
    Bargheer, Till; Chestnov, Vsevolod; Schomerus, Volker (Berlin ; Heidelberg : Springer, 2020)
    The finite remainder function for planar, color-ordered, maximally helicity violating scattering processes in N = 4 super Yang-Mills theory possesses a non-vanishing multi-Regge limit that depends on the choice of a ...
  • Octagons I: combinatorics and non-planar resummations 
    Bargheer, Till; Coronado, Frank; Vieira, Pedro (Berlin; Heidelberg : Springer, 2019)
    We explain how the ’t Hooft expansion of correlators of half-BPS operators can be resummed in a large-charge limit in N = 4 super Yang-Mills theory. The full correlator in the limit is given by a non-trivial function of ...
  • PT deformation of angular Calogero models 
    Correa, Francisco; Lechtenfeld, Olaf (Heidelberg : Springer Verlag, 2017)
    The rational Calogero model based on an arbitrary rank-n Coxeter root system is spherically reduced to a superintegrable angular model of a particle moving on S n−1 subject to a very particular potential singular at the ...
  • PT deformation of Calogero-Sutherland models 
    Correa, F.; Lechtenfeld, O. (Heidelberg : Springer Verlag, 2019)
    Calogero-Sutherland models of N identical particles on a circle are deformed away from hermiticity but retaining a PT symmetry. The interaction potential gets completely regularized, which adds to the energy spectrum an ...
  • The quantum angular Calogero-Moser model 
    Feigin, Mikhail; Lechtenfeld, Olaf; Polychronakos, Alexios P. (New York, NY : Springer International Publishing, 2013)
    The rational Calogero-Moser model of n one-dimensional quantum particles with inverse-square pairwise interactions (in a confining harmonic potential) is reduced along the radial coordinate of R-n to the 'angular Calogero-Moser ...
  • Regularized degenerate multi-solitons 
    Correa, Francisco; Fring, Andreas (Heidelberg : Springer Verlag, 2016)
    We report complex PT-symmetric multi-soliton solutions to the Korteweg de-Vries equation that asymptotically contain one-soliton solutions, with each of them possessing the same amount of finite real energy. We demonstrate ...
  • Spinning extensions of D (2 ; 1; α) superconformal mechanics 
    Galajinsky, Anton; Lechtenfeld, Olaf (Berlin : Springer, 2019)
    As is known, any realization of SU(2) in the phase space of a dynamical sys- tem can be generalized to accommodate the exceptional supergroup D (2 ; 1;α ), which is the most general N = 4 supersymmetric ...
  • The tetrahexahedric angular Calogero model 
    Correa, Francisco; Lechtenfeld, Olaf (New York : Springer, 2015)
    The spherical reduction of the rational Calogero model (of type A n−1 and after removing the center of mass) is considered as a maximally superintegrable quantum system, which describes a particle on the (n−2)-sphere subject ...