Abhay Ashtekar 2005 New J. Phys. 7 198 doi:10.1088/1367-2630/7/1/198
Gravity and the quantum
Focus on Spacetime 100 Years LaterAbhay Ashtekar1,2
Show affiliationsPart of Focus on Spacetime 100 Years Later
The goal of this review is to present a broad perspective on quantum gravity for non-experts. After a historical introduction, key physical problems of quantum gravity are illustrated. While there are a number of interesting and insightful approaches to address these issues, over the past two decades sustained progress has primarily occurred in two programs: string theory and loop quantum gravity. The first program is described in Horowitz's contribution to this Focus Issue while my article will focus on the second. The emphasis is on underlying ideas, conceptual issues and overall status of the program rather than mathematical details and associated technical subtleties.
- PACS
-
04.60.Pp Loop quantum gravity, quantum geometry, spin foams
04.70.Dy Quantum aspects of black holes, evaporation, thermodynamics
- Subjects
- Dates
-
Issue 1 (September 2005)
Received 16 September 2004
Published 29 September 2005
-
Gravity and the quantum
Abhay Ashtekar 2005 New J. Phys. 7 198
-
Analysis of laser damage threshold and morphological changes at the surface of a HgCdTe crystal
C S Chen et al 2006 J. Opt. A: Pure Appl. Opt. 8 88
-
Noise-guided evolution within cyclical interactions
Matjaž Perc and Attila Szolnoki 2007 New J. Phys. 9 267
-
Conditional Hamiltonian and reset operator in the quantum jump approach
Gerhard C Hegerfeldt and Dirk G Sondermann 1996 Quantum Semiclass. Opt. 8 121
-
Neural network classification of autoregressive features from electroencephalogram signals for brain–computer interface design
Nai-Jen Huan and Ramaswamy Palaniappan 2004 J. Neural Eng. 1 142
-
Maximum local Lyapunov dimension bounds the box dimension of chaotic attractors
Brian R Hunt 1996 Nonlinearity 9 845
-
MD calculations of the spatial distribution of nuclear-stimulated desorption
Y Ashkenazy and I Kelson 1999 Modelling Simul. Mater. Sci. Eng. 7 169
-
News from the BIPM
T J Quinn 2002 Metrologia 39 115
-
Tooth regeneration: challenges and opportunities for biomedical material research
Chang Du and Janet Moradian-Oldak 2006 Biomed. Mater. 1 R10
-
International comparisons of He-Ne lasers stabilized with 127I2 at λ = 633 nm (September 1999). Part IX: Comparison of BEV (Austria), CMI (Czech Republic), GUM (Poland), OMH (Hungary), NIPLPR (Romania) and BIPM lasers at λ = 633 nm
M Matus et al 2002 Metrologia 39 83
Users also read
What's this?- Gravitational wave detectors
- Hawking radiation and black hole thermodynamics
- The basics of gravitational wave theory