D-brane Decay in Two-Dimensional String Theory

By I. Klebanov, J. Maldacena, N. Seiberg. 2003

267 citations recorded by the source corpus.

We consider unstable D0-branes of two dimensional string theory, described by the boundary state of Zamolodchikov and Zamolodchikov [hep-th/0101152] multiplied by the Neumann boundary state for the time coordinate $t$. In the dual description in terms of the $c=1$ matrix model, this D0-brane is described by a matrix eigenvalue on top of the upside down harmonic oscillator potential. As suggested by McGreevy and Verlinde [hep-th/0304224], an eigenvalue rolling down the potential describes D-brane decay. As the eigenvalue moves down the potential to the asymptotic region it can be described as a free relativistic fermion. Bosonizing this fermion we get a description of the state in terms of a coherent state of the tachyon field in the asymptotic region, up to a non-local linear field redefinition by an energy-dependent phase. This coherent state agrees with the exponential of the closed string one-point function on a disk with Sen's marginal boundary interaction for $t$ which describes D0-brane decay.

Subfields: Geometry and Topology, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/519302d28427a5fb6d462d9a6a1be9d491f81f25

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In Geometry and Topology

1. Y. Nakayama
2. D. Berenstein
3. D. Stanford
4. Phil Saad
5. J. Maldacena
6. D. Kutasov
7. T. Takayanagi
8. N. Seiberg

In Nuclear and High Energy Physics

1. J. Maldacena
2. D. Stanford
3. Y. Nakayama
4. T. Takayanagi
5. E. Witten
6. S. Shenker
7. R. Myers
8. Phil Saad

Citations in the corpus

• Liouville Field Theory — A decade after the revolution (2004, methodology): “This issue has been studied in [175], [114], [214].”
• JT gravity as a matrix integral (2019, background): “In the Liouville-minimal string context these effects have been connected to two types of branes, ZZ branes and FZZT branes [47, 48, 49, 50, 51, 52, 53, 54, 55, 53, 40].”
• A New Hat For The c=1 Matrix Model (2003, methodology): “In section 11 we study the relation of tachyon condensation and rolling matrix eigenvalues [7-9] through a calculation of the disk expectation value of the ground ring generators.”
• Exact vs. semiclassical target space of the minimal string (2004, unknown): “In [18-21,26], the matrix M of the one-matrix model was interpreted as describing the (bosonic) open strings stretched between the N condensed ZZ branes in the Fermi sea.”
• LSZ in LST (2004, unknown): “This is now understood as the theory on a large number of D-branes localized deep inside the Liouville wall [66,67].”
• A matrix model dual of type 0B string theory in two dimensions (2003, background): “1E-mail: takayana@wigner.harvard.edu 2E-mail: nick@legendre.harvard.edu”
• A toy model for the AdS/CFT correspondence (2004, background): “Many of these results have been made more precise in the literature [5, 6, 7], including a space-time interpretation in terms of type O strings for the solution to the nonperturbative instability of the original matrix model [8].”