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Time-dependent backgrounds of 2D string theory

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arxiv hep-th/0205079 v1 pith:ABEJL4II submitted 2002-05-08 hep-th

classification hep-th
keywords theorybackgroundstringbackgroundsflowspossibleprofileapplied
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We study possible backgrounds of 2D string theory using its equivalence with a system of fermions in upside-down harmonic potential. Each background corresponds to a certain profile of the Fermi sea, which can be considered as a deformation of the hyperbolic profile characterizing the linear dilaton background. Such a perturbation is generated by a set of commuting flows, which form a Toda Lattice integrable structure. The flows are associated with all possible left and right moving tachyon states, which in the compactified theory have discrete spectrum. The simplest nontrivial background describes the Sine-Liouville string theory. Our methods can be also applied to the study of 2D droplets of electrons in a strong magnetic field.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 77 citations worldwide. Full citation record

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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 ...

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

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    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...

  3. Hilbert Bundles and Holographic Space-time: the Hydrodynamic Approach to Gravity

    hep-th 2025-02 conditional novelty 3.0 of 10

    Einstein's equations are treated as hydrodynamic equations for the area-law entropy of causal diamonds, with quantum dynamics proposed to live in a Hilbert bundle over spacetime geodesics.

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