Journal of Physical Studies 17(4), Article 4001 [5 pages] (2013) DOI: https://doi.org/10.30970/jps.17.4001 ESTIMATING THE UPPER BOUND OF THE PARAMETER OF NONCOMMUTATIVITY PARAMETER ON THE BASIS OF THE EQUIVALENCE PRINCIPLE Kh. P. Gnatenko Department for Theoretical Physics, Ivan Franko National University of Lviv, 12, Drahomanov St., Lviv, UA-79005, Ukraine e-mail: khrystyna.gnatenko@gmail.com

The motion of a macroscopic body in a gravitational field is analyzed in a space with noncommutative coordinates. As an example the motion of the Moon is considered. The equivalence principle is examined. The upper bound of the parameter of noncommutativity is estimated on the basis of the LLR (Lunar Laser Ranging) experiment results.

PACS number(s): 02.40.Gh, 04.20.Cv

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