Classical and Quantum D-branes in 2 D String Theory

  title={Classical and Quantum D-branes in 2 D String Theory},
  author={John McGreevy and Joerg Teschner and Herman L. Verlinde},
We investigate two classes of D-branes in 2-d string theory, corresponding to extended and localized branes, respectively. We compute the string emission during tachyon condensation and reinterpret the results within the c = 1 matrix model. As in hep-th/0304224, we find that the extended branes describe classical eigenvalue trajectories, while, as found in hep-th/0305159, the localized branes correspond to the quantum field that creates and destroys eigenvalues. This result suggests that the… CONTINUE READING
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