Straight-line string in the einbein field formalism
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The canonical description of the straight-line string is given in the einbein field formalism. The system is quantized and Regge spectrum is reproduced. The covariant analogue of the Newton-Wigner coordinate is found, and peculiarities of the gauge fixing in τ-reparametrization group are discussed.
9 pages, LaTeX2e, no figures
9 pages, LaTeX2e, no figures