Physical cosmology

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The cosmic gravitational wave background is a relic of the Cosmic inflation, which can be measured directly, or indirectly by examining the polarization of the Cosmic microwave background radiation. It is the result of three things: inflationary expansion of space itself, reheating after inflation and turbulent fluid mixing of matter and radiation. ^[1]

See also

• General Relativity
• Gravitational wave
• Linearised Einstein field equations
• LIGO, VIRGO, GEO 600, and TAMA — Gravitational wave detectors
• LISA the proposed Laser Interferometer Space Antenna.
• BBO Big Bang Observer, proposed successor to LISA.
• Sticky bead argument, for a physical way to see that gravitational radiation should carry energy.

References

1. ^ "Gravitational Wave Background". http://www.aip.org/pnu/2007/split/809-1.html. Retrieved 2007-06-20. 

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