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Supersymmetric field theory with benign ghosts

Abstract : 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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http://hal.in2p3.fr/in2p3-00919700
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Submitted on : Tuesday, December 17, 2013 - 11:16:26 AM
Last modification on : Thursday, February 7, 2019 - 4:50:08 PM

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A.V. Smilga. Supersymmetric field theory with benign ghosts. Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2014, 47, pp.052001. ⟨10.1088/1751-8113/47/5/052001⟩. ⟨in2p3-00919700⟩

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