No-Ghost Theorem for Neveu-Schwarz String in 0-Picture(Particles and Fields)

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概要

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• The no-ghost theorem for Neveu-Schwarz string is directly proved in 0-picture. The one-to-one correspondence between physical states in 0-picture and in the conventional (-1)-picture is confirmed. It is shown that a nontrivial metric consistent with the BRST cohomology is needed to define a positive semidefinite norm in the physical Hilbert space. As a by-product, we find a new inverse picture-changing operator, which is noncovariant but has a nonsingular operator product with itself. A possibility to construct a new gauge-invariant superstring field theory is discussed.

• 2010-12-25

著者

• KUNITOMO Hiroshi

  Yukawa Institute for Theoretical Physics, Kyoto University

• KOHRIKI Maiko

  Yukawa Institute for Theoretical Physics, Kyoto University

• MURATA Masaki

  Yukawa Institute for Theoretical Physics, Kyoto University

• Kunitomo Hiroshi

  Kyoto Univ. Kyoto Jpn

• Kunitomo Hiroshi

  Yukawa Institute For Theoretical Physics Kyoto University

• Kohriki Maiko

  Yukawa Institute For Theoretical Physics Kyoto University

• Murata Masaki

  Yukawa Institute For Theoretical Physics Kyoto University

• Murata Masaki

  Institute of Physics AS CR:Yukawa Institute for Theoretical Physics, Kyoto University

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