On quantization of the KdV equation

Details On quantization of the KdV equation On quantization of the KdV equation

2001-06-28

arxiv.org/abs/nlin/0106044v1

Nonlinear Sciences

Exactly Solvable and Integrable Systems

10 pages, Latex2e. Theor. Math. Phys. (to be published)

Scientific paper

Quantization procedure of the Gardner-Zakharov-Faddeev and Magri brackets by means of the fermionic representation for the KdV field is considered. It is shown that in both cases the corresponding Hamiltonians are given as sums of two well defined operators. Each of them is bilinear and diagonal with respect to either fermion, or boson (current) creation-annihilation operators. As a result the quantization procedure needs no any space cut-off and can be performed on the whole axis. Existence of the solitonic states in the Hilbert space as well as quantization of soliton parameters are shown to result from this approach. As a by-product it is also demonstrated that the dispersionless KdV is uniquely and explicitly solvable in the quantum case.

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