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Related Experiment Video

Updated: May 27, 2026

Setting Limits on Supersymmetry Using Simplified Models

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Model-independent tests of cosmic gravity.

Eric V Linder¹

¹Berkeley Center for Cosmological Physics and Berkeley Laboratory, University of California, Berkeley, CA 94720, USA. evlinder@lbl.gov

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences

|November 16, 2011

Summary

Scientists explored deviations from Einstein's theory of gravity to understand cosmic expansion. This research provides a method to test alternative gravity models using future astronomical surveys.

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The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

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Published on: August 12, 2013

Area of Science:

Cosmology
Gravitational Physics

Background:

Gravitation shapes the universe's expansion and structure, but its behavior on cosmic scales remains untested.
Observed cosmic acceleration suggests potential deviations from Einstein's theory of general relativity (GR).

Purpose of the Study:

To develop a model-independent approach for parametrizing deviations from general relativity.
To establish criteria for distinguishing between different modified gravity models.

Main Methods:

Exploration of phase space dynamics for key post-general relativity functions.
Derivation of a classification scheme for modified gravity theories.
Definition of accuracy criteria for distinguishing gravity models.

Main Results:

A framework for analyzing deviations from general relativity was developed.
A method to classify and differentiate between various modified gravity models was established.

Conclusions:

Future astronomical surveys can constrain parameters of modified gravity theories.
New insights into the fundamental nature of gravitation on cosmic scales are anticipated.