Results 11 to 20 of about 1,400,119 (370)
Integrable Field Theories with Defects [PDF]
Czechoslovak Journal of Physics, 2006 The structure of integrable field theories in the presence of defects is discussed in terms of boundary functions under the Lagrangian formalism. Explicit examples of bosonic and fermionic theories are considered.
A. Fring +9 more
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Renormalons in integrable field theories [PDF]
Journal of High Energy Physics, 2020 In integrable field theories in two dimensions, the Bethe ansatz can be used to compute exactly the ground state energy in the presence of an external field coupled to a conserved charge.
Marcos Mariño, Tomás Reis
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Integrable field theories and their CCFT duals [PDF]
Journal of High Energy Physics, 2023 We compute the Mellin transforms of various two-dimensional integrable S-matrices, providing the first explicit, non-perturbative realizations of celestial CFT.
Daniel Kapec, Adam Tropper
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On space of integrable quantum field theories [PDF]
Nuclear Physics B, 2017 We study deformations of 2D Integrable Quantum Field Theories (IQFT) which preserve integrability (the existence of infinitely many local integrals of motion). The IQFT are understood as “effective field theories”, with finite ultraviolet cutoff. We show
F.A. Smirnov, A.B. Zamolodchikov
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Quantum Quenches in Integrable Field Theories [PDF]
New Journal of Physics, 2010 We study the non equilibrium time evolution of an integrable field theory in 1+1 dimensions after a sudden variation of a global parameter of the Hamiltonian.
Biroli G Kollath C Laeuchli A +13 more
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Noncommutative Integrable Field Theories in 2d [PDF]
Nuclear Physics B, 2002 We study the noncommutative generalization of (euclidean) integrable models in two-dimensions, specifically the sine- and sinh-Gordon and the U(N) principal chiral models. By looking at tree-level amplitudes for the sinh-Gordon model we show that its na\"
Armoni +22 more
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The Intrinsic Coupling in Integrable Quantum Field Theories [PDF]
Nuclear Physics B, 2000 The intrinsic 4-point coupling, defined in terms of a truncated 4-point function at zero momentum, provides a well-established measure for the interaction strength of a QFT.
A. Patrascioiu +44 more
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On a systematic approach to defects in classical integrable field theories [PDF]
, 2008 We present an inverse scattering approach to defects in classical integrable field theories. Integrability is proved systematically by constructing the generating function of the infinite set of modified integrals of motion.
Bibikov P. N. +7 more
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The full analytic trans-series in integrable field theories [PDF]
Physics Letters B, 2023 We analyze a family of generalized energy densities in integrable quantum field theories in the presence of an external field coupled to a conserved charge.
Zoltán Bajnok +2 more
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Resurgence and 1/N Expansion in Integrable Field Theories [PDF]
Journal of High Energy Physics, 2021 In theories with renormalons the perturbative series is factorially divergent even after restricting to a given order in 1/N, making the 1/N expansion a natural testing ground for the theory of resurgence.
Lorenzo Di Pietro +3 more
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