Is string theory a theory of quantum gravity?
arXiv:1105.6359 · doi:10.1007/s10701-011-9612-x
Abstract
Some problems in finding a complete quantum theory incorporating gravity are discussed. One is that of giving a consistent unitary description of high-energy scattering. Another is that of giving a consistent quantum description of cosmology, with appropriate observables. While string theory addresses some problems of quantum gravity, its ability to resolve these remains unclear. Answers may require new mechanisms and constructs, whether within string theory, or in another framework.
Invited contribution for "Forty Years of String Theory: Reflecting on the Foundations," a special issue of Found. Phys., ed. by G 't Hooft, E. Verlinde, D. Dieks, S. de Haro. 32 pages, 5 figs., harvmac. v2: final version to appear in journal (small revisions)
References in corpus (15)
- Semiclassical relations and IR effects in de Sitter and slow-roll space-times
- Is N = 8 Supergravity Ultraviolet Finite?
- Local bulk S-matrix elements and CFT singularities
- Black hole information, unitarity, and nonlocality
- Unitarity and Holography in Gravitational Physics
- Locality in quantum gravity and string theory
- Gravitational effects in ultrahigh-energy string scattering
- (Non)perturbative gravity, nonlocality, and nice slices
- A global picture of quantum de Sitter space
- High energy scattering in gravity and supergravity
- High-energy gravitational scattering and black hole resonances
- Quantization in black hole backgrounds
- Eternal inflation predicts that time will end
- Surprising Connections Between General Relativity and Condensed Matter
- Relational observables in 2d quantum gravity
Cited by in corpus (16)
- Cosmological constant and vacuum energy: old and new ideas
- Black holes, quantum information, and unitary evolution
- Nonviolent unitarization: basic postulates to soft quantum structure of black holes
- Testing quantum gravity by nanodiamond interferometry with nitrogen-vacancy centers
- Gauge-invariant observables, gravitational dressings, and holography in AdS
- Hilbert space structure in quantum gravity: an algebraic perspective
- Statistical physics of black holes as quantum-mechanical systems
- Constraints on a fine-grained AdS/CFT correspondence
- The Good, the Bad, and the Ugly of Gravity and Information
- Instability of De Sitter Spacetime induced by Quantum Conformal Anomaly
- Quasinormal Modes and Shadows of Black Holes in Infinite Derivative Theory of Gravity
- Black Hole Quasi-Periodic Oscillations in the Presence of Gauss-Bonnet Trace Anomaly
- A Holographic Holographic Bound and the Black Hole S-Matrix
- Trans-Planckian quantum corrections and inflationary vacuum fluctuations of non-minimally coupled scalar fields
- Perturbative Renormalisation Group Improved Black Hole Solution and its Quasinormal Modes
- The Non-Euclidean Hydrodynamic Klein-Gordon Equation with Perturbative Self-Interacting Field