physics, mathematical physics, philosophy of physics
theory (physics), model (physics)
experiment, measurement, computable physics
Axiomatizations
Tools
Structural phenomena
Types of quantum field thories
black hole spacetimes | vanishing angular momentum | positive angular momentum |
---|---|---|
vanishing charge | Schwarzschild spacetime | Kerr spacetime |
positive charge | Reissner-Nordstrom spacetime | Kerr-Newman spacetime |
The standard model (in theoretical physics) for the observable universe on the largest length scales of cosmology:
it is an inflationary FRW spacetime with cosmological constant (“dark energy”) and cold dark matter. The technical term for this is the $\Lambda$ CDM concordance model (where “$\Lambda$” is the standard symbol for the cosmological constant and “CDM” is for “cold dark matter”).
The current model assumes that the energy density of the observable universe consists of
26.8% dark matter
68.3% dark energy.
(e.g. Einasto 09, fig 17, here)
The renormalization freedom in perturbative quantization of gravity (perturbative quantum gravity) induces freedom in the choice of vacuum expectation value of the stress-energy tensor and hence in the cosmological constant.
For review see Hack 15, section 3.2.1
For more see at cosmological constant here.
standard model of particle physics and cosmology
theory: | Einstein- | Yang-Mills- | Dirac- | Higgs |
---|---|---|---|---|
gravity | electroweak and strong nuclear force | fermionic matter | scalar field | |
field content: | vielbein field $e$ | principal connection $\nabla$ | spinor $\psi$ | scalar field $H$ |
Lagrangian: | scalar curvature density | field strength squared | Dirac operator component density | field strength squared + potential density |
$L =$ | $R(e) vol(e) +$ | $\langle F_\nabla \wedge \star_e F_\nabla\rangle +$ | $(\psi , D_{(e,\nabla)} \psi) vol(e) +$ | $\nabla \bar H \wedge \star_e \nabla H + \left(\lambda {\vert H\vert}^4 - \mu^2 {\vert H\vert}^2 \right) vol(e)$ |
Lecture notes include
A review is in
A discussion of open problems is in
Benoit Famaey, Stacy McGaugh, Challenges for Lambda-CDM and MOND (arXiv:1301.0623)
Thomas Buchert, Alan A. Coley, Hagen Kleinert, Boudewijn F. Roukema, David L. Wiltshire, Observational Challenges for the Standard FLRW Model, Int. J. Mod. Phys. D 25, 1630007 (2016) (arXiv:1512.03313)
See also
Wikipedia, Lambda-CDM model
Jaan Einasto, Dark matter (arXiv:0901.0632) 2009
Discussion in the rigorous context ofAQFT on curved spacetimes includes
Klaus Fredenhagen, Thomas-Paul Hack, Quantum field theory on curved spacetime and the standard cosmological model (arXiv:1308.6773)
Thomas-Paul Hack, The Lambda CDM-model in quantum field theory on curved spacetime and Dark Radiation (arXiv:1306.3074)
For review see
Last revised on August 3, 2018 at 12:13:20. See the history of this page for a list of all contributions to it.