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Quadratic effective action for QED in D=2,3 dimensions
(2000-06-15)
We calculate the effective action for quantum electrodynamics (QED) in D=2,3 dimensions at the quadratic approximation in the gauge fields. We analyze the analytic structure of the corresponding nonlocal boson propagators ...
Quadratic effective action for QED in D=2,3 dimensions
(2000-06-15)
We calculate the effective action for quantum electrodynamics (QED) in D=2,3 dimensions at the quadratic approximation in the gauge fields. We analyze the analytic structure of the corresponding nonlocal boson propagators ...
Integrable deformations of strings on symmetric spaces
(Springer, 2014-11-04)
A general class of deformations of integrable sigma-models with symmetric space F/G target-spaces are found. These deformations involve defining the non-abelian T dual of the sigma-model and then replacing the coupling of ...
The Faddeev-Jackiw approach and the conformal affine sl(2) Toda model coupled to the matter field
(Academic Press Inc., 2014)
Adding flavour to the S-matrix bootstrap
(2018-12-01)
We explore the S-matrices of gapped, unitary, Lorentz invariant quantum field theories with a global O(N) symmetry in 1+1 dimensions. We extremize various cubic and quartic couplings in the two-to-two scattering amplitudes ...
Dynamics of lattice-pinned charge stripes
(American Physical SocCollege PkEUA, 1999)
Self-dual hopfions
(SPRINGER, 2010)
We construct static and time-dependent exact soliton solutions with nontrivial Hopf topological charge for a field theory in 3 + 1 dimensions with the target space being the two dimensional sphere S(2). The model considered ...