Boundary Description of Microstates of the Two-Dimensional Black Hole

Abstract

We identify the microstates of the non supersymmetric, asymptotically flat 2d black hole in the dual c=1 matrix quantum mechanics (MQM). We calculate the partition function of the theory using Hamiltonian methods and reproduce one of two conflicting results found by Kazakov and Tseytlin. We find the entropy by counting states and the energy by solving the Schrodinger equation. The dominant contribution to the partition function in the double scaling limit is a novel bound state that can be considered an explicit dual of the black hole microstates. This bound state is long lived and evaporates slowly, exactly like a black hole in asymptotically flat space.

arXiv comment54 pages, 16 figures. v2: new figures, corrected calculation of variance and evaporation rate, and some minor changes. v3: minor changes, version accepted for publication in SciPost Physics

References in corpus (42)

• Microscopic Origin of the Bekenstein-Hawking Entropy
• Black Hole Entropy from Near-Horizon Microstates
• Tachyon Dynamics in Open String Theory
• A Matrix Model for the Two Dimensional Black Hole
• Microscopic origin of the Bekenstein-Hawking entropy of supersymmetric AdS${}_5$ black holes
• Monte Carlo studies of supersymmetric matrix quantum mechanics with sixteen supercharges at finite temperature
• Self Gravitating Fundamental Strings
• Lectures on 2D gravity and 2D string theory (TASI 1992)
• A Matrix Model Dual of Type 0B String Theory in Two Dimensions
• Liouville Models of Black Hole Evaporation
• Black hole thermodynamics from simulations of lattice Yang-Mills theory
• Black holes in 4d $\mathcal{N}=4$ Super-Yang-Mills
• String Theory in Two Dimensions
• Power law violation of the area law in quantum spin chains
• Long strings in two dimensional string theory and non-singlets in the matrix model
• One-Dimensional String Theory with Vortices as Upside-Down Matrix Oscillator
• Reformulating String Theory with the $1/N$ Expansion
• Quantum phase transition from bounded to extensive entanglement entropy in a frustration-free spin chain
• The Physics of 2-d Stringy Spacetimes
• On free energy of 2-d black hole in bosonic string theory
• String scale black holes at large $D$
• Random walks and the Hagedorn transition
• Matrix Quantum Mechanics and Two-dimensional String Theory in Non-trivial Backgrounds
• Quantum vortices, M2-branes and black holes
• Random Walks in Rindler Spacetime and String Theory at the Tip of the Cigar
• Holographic rainbow networks for colorful Motzkin and Fredkin spin chains
• Near-Hagedorn Thermodynamics and Random Walks: a General Formalism in Curved Backgrounds
• Stringy ER=EPR
• Emergent classical spacetime from microstates of an incipient black hole
• Space from String Bits
• Black Hole Entropy from Quantum Mechanics
• A microscopic description of black hole evaporation via holography
• A Puncture in the Euclidean Black Hole
• Microstates of a $2d$ Black Hole in string theory
• Quantum Phases of $4d$ $SU(N)$ $\mathcal{N}=4$ SYM
• Long strings condensation and FZZT branes
• FZZ Algebra
• Solving the eigenvalue problem arising from the adjoint sector of the c=1 matrix model
• Explicit microstates at the Schwarzschild horizon
• FZZ Scattering
• Off-Shell Strings I: S-matrix and Action
• Off-Shell Strings II: Black Hole Entropy

Cited by in corpus (1)

• Minimal Areas from Entangled Matrices