Quantization of Bosonic String Model in (26+2)-DIMENSIONAL Space-Time

@article{Tsukioka2003QuantizationOB,
  title={Quantization of Bosonic String Model in (26+2)-DIMENSIONAL Space-Time},
  author={Takuya Tsukioka and Yoshiyuki Watabiki},
  journal={International Journal of Modern Physics A},
  year={2003},
  volume={19},
  pages={1923-1959}
}
We investigate the quantization of the bosonic string model which has a local U(1)V×U(1)A gauge invariance as well as the general coordinate and Weyl invariance on the world-sheet. The model is quantized by Lagrangian and Hamiltonian BRST formulations a la Batalin, Fradkin and Vilkovisky and noncovariant light-cone gauge formulation. Upon the quantization the model turns out to be formulated consistently in (26+2)-dimensional background space–time involving two time-like coordinates. 
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