Abstract
We calculate the scalar Casimir energy and Casimir force for an ℝ3 × N Kaluza-Klein piston setup in which the extra-dimensional space N contains a noncommutative two-dimensional sphere S fz. We study the cases with T d×S fz and S fz as the extra-dimensional spaces, where T d is the d-dimensional commutative torus, and examine the validity of the results and the regularization obtained in the piston setup in each case. We examine the Casimir energy with one-loop corrections for one piston chamber due to the self-interacting scalar field in the noncommutative geometry. We compute with some approximations. We compare the obtained results with the results of analogous computations for the Minkowski space-time M D. In conclusion, we discuss the stabilization of the extra-dimensional space in the piston setup.
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Prepared from an English manuscript submitted by the author; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, Vol. 166, No. 3, pp. 388–409, March, 2011.
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Oikonomou, V.K. Kaluza-Klein pistons with noncommutative extra dimensions. Theor Math Phys 166, 337–355 (2011). https://doi.org/10.1007/s11232-011-0027-9
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DOI: https://doi.org/10.1007/s11232-011-0027-9