Notes about equivalence between Sine-Gordon theory (free fermion point) and the free fermion theory

Details Notes about equivalence between Sine-Gordon theory (free fermion point) and the free fermion theory Notes about equivalence between Sine-Gordon theory (free fermion point) and the free fermion theory

2001-05-29

arxiv.org/abs/hep-th/0105290v1

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 3 figures

Scientific paper

The space of local integrals of motion for the Sine-Gordon theory (the free fermion point) and the theory of free fermions in the light cone coordinates is investigated. Some important differences between the spaces of local integrals of motion of these theories are obtained. The equivalence is broken on the level of the integrals of motion between bosonic and fermionic theories (in the free fermion point). The integrals of motion are constracted without Quantum Inverse Scattering Method (QISM)and the additional quantum integrals of motion are obtaned. So the QISM is not absolutely complete.

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