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String Theory in Two Dimensions

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arxiv hep-th/9108019 v2 pith:ACZ54WUN submitted 1991-08-26 hep-th

classification hep-th
keywords stringtheorydimensiondimensionsembeddedformulatedprogressrecent
verification ladder T0 review T1 audit T2 compute T3 formal

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I review some of the recent progress in two-dimensional string theory, which is formulated as a sum over surfaces embedded in one dimension.

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Cited by 17 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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    Fixed-point tensors built from open-string boundary data reproduce the closed-string spectrum of the compactified boson at generic radius and generate stable RG flows with a controllable marginal deformation.

  2. Fate of "Space-like singularities" in $c=1$ Matrix Model

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    Space-like singularities in the c=1 matrix model are artifacts of the double scaling limit; beyond it, Fermi surface folds proliferate and the coarse-grained phase space density relaxes to equilibrium via a universal ...

  3. Bootstrapping Euclidean Two-point Correlators

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    A semidefinite programming bootstrap is formulated for Euclidean two-point correlators in quantum mechanics, yielding rigorous bounds and low-lying spectrum extraction in the ungauged one-matrix model.

  4. Towards the super Virasoro minimal string

    hep-th 2025-05 conditional novelty 7.0 of 10

    The authors derive the timelike super Liouville structure constants from crossing symmetry and construct a tentative Type 0A/0B super Virasoro minimal string whose sphere three-point functions vanish only after sign c...

  5. Topological order in matrix Ising models

    hep-th 2019-08 conditional novelty 7.0 of 10

    Large-N matrix Ising models with O(N1,Z) x O(N2,Z) symmetry reduce to spherically constrained bosonic matrix integrals that exhibit third-order topological transitions in the connectivity of the singular value distribution.

  6. Fixing an Ambiguity in Two Dimensional String Theory Using String Field Theory

    hep-th 2019-08 conditional novelty 7.0 of 10

    The undetermined constant c' in the Balthazar-Rodriguez-Yin world-sheet calculation is derived from string field theory to be -ln4, replacing the empirical fit to the matrix model.

  7. Effective Field Theory of Noncritical M-theory from Bosonization

    hep-th 2026-07 conditional novelty 6.5 of 10

    Coadjoint-orbit bosonization of the Hořava-Keeler noncritical M-theory Fermi liquid yields a continuous family of interacting 1+1d chiral bosons whose density correlators match the exact Fermi liquid semiclassically.

  8. Aspects of Closed Matricial Worlds

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    Higher-genus corrections to the 2D de Sitter disk path integral follow a universal structure that at large boundary length mimics topological gravity, with new explicit expressions through genus six.

  9. The Runkel-Watts string

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    The Runkel-Watts string is a solvable family of two-dimensional string theories whose all-genus amplitudes are generated by SU(2) Yang-Mills TQFT data combined with VMS quantum volumes, and it has a dual matrix-integr...

  10. The black hole S-matrix in gauge/gravity duality

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    A unitary black hole S-matrix is built in AdS/CFT via collapsing brane shells; the black hole decays by exponentially rare brane emission, and the emitted branes are argued to be the original constituents, resolving t...

  11. Regge trajectories from the adjoint sector of Matrix Quantum Mechanics

    hep-th 2026-03 unverdicted novelty 6.0 of 10

    At criticality in the adjoint sector of matrix quantum mechanics, the spectrum exhibits Regge trajectories Δ² ~ n/α' interpreted as oscillatory excitations of short folded open strings in the dual 2D string theory.

  12. A glimpse into the Ultrametric spectrum

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    Quantum oscillators with energies from the Vladimirov derivative on the p-adic unit circle — exponentially spaced and exponentially degenerate — give string-like square-root-of-energy entropy, modulated by log-periodi...

  13. Sine-Liouville gravity as a Vertex Model on Planar Graphs

    hep-th 2025-12 unverdicted novelty 6.0 of 10

    The seven-vertex matrix model realizes sine-Liouville gravity through a shared classical spectral curve with matrix quantum mechanics but distinct branes, with dilute-dense flow analogous to a gravitational massless s...

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    At self-dual radius, ZZ instanton normalizations from worldsheet string theory match the matrix model trans-series, with SU(2) boundary condition zero modes playing the key role.

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    Every Feynman diagram in a two-matrix model is mapped to a unique closed string worldsheet and Belyi embedding, with the diagram's weight equal to the string action.

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    Derives the effective Hamiltonian in the collective field framework for three-matrix quantum mechanics models and analyzes the stability of the vacuum solution.

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