Wednesday, June 26, 2013

1306.6066 (A. V. Smilga)

Supersymmetric field theory with benign ghosts    [PDF]

A. V. Smilga
We construct a supersymmetric (1+1)-dimensional field theory involving extra derivatives and associated ghosts: the spectrum of the Hamiltonian is not bounded from below, neither from above. In spite of that, there is neither classical, nor quantum collapse and unitarity is preserved.
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