TY - JOUR

T1 - Strings from tachyons

T2 - The c = 1 matrix reloaded

AU - McGreevy, John

AU - Verlinde, Herman

N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2003/12/1

Y1 - 2003/12/1

N2 - We propose a new interpretation of the c = 1 matrix model as the world-line theory of N unstable D-particles, in which the hermitian matrix is provided by the non-abelian open string tachyon. For D-branes in 1+1-d string theory, we find a direct quantitative match between the closed string emission due to a rolling tachyon and that due to a rolling eigenvalue in the matrix model. We explain the origin of the double-scaling limit, and interpret it as an extreme representative of a large equivalence class of dual theories. Finally, we define a concrete decoupling limit of unstable D-particles in IIB string theory that reduces to the c = 1 matrix model, suggesting that 1+1-d string theory represents the near-horizon limit of an ultra-dense gas of IIB D-particles.

AB - We propose a new interpretation of the c = 1 matrix model as the world-line theory of N unstable D-particles, in which the hermitian matrix is provided by the non-abelian open string tachyon. For D-branes in 1+1-d string theory, we find a direct quantitative match between the closed string emission due to a rolling tachyon and that due to a rolling eigenvalue in the matrix model. We explain the origin of the double-scaling limit, and interpret it as an extreme representative of a large equivalence class of dual theories. Finally, we define a concrete decoupling limit of unstable D-particles in IIB string theory that reduces to the c = 1 matrix model, suggesting that 1+1-d string theory represents the near-horizon limit of an ultra-dense gas of IIB D-particles.

KW - D-branes

KW - Matrix Models

KW - Tachyon Condensation

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U2 - 10.1088/1126-6708/2003/12/054

DO - 10.1088/1126-6708/2003/12/054

M3 - Article

AN - SCOPUS:23044488932

VL - 7

SP - 1249

EP - 1276

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 12

ER -