Abstract
We derive the relativistic Hamiltonian of hydrogen atom in dynamical non-commutative spaces (DNCS or τ-space). Using this Hamiltonian we calculate the energy shift of the ground state as well the 2P 1/2, 2S 1/2 levels. In all the cases, the energy shift depends on the dynamical non-commutative parameter τ. Using the accuracy of the energy measurement, we obtain an upper bound for τ. We also study the Lamb shift in DNCS. Both 2P 1/2 and 2S 1/2 levels receive corrections due to dynamical non-commutativity of space which is in contrast with the non-dynamical non-commutative spaces (NDNCS or 𝜃-space) in which the 2S 1/2 level receives no correction.
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ALAVI, S.A., REZAEI, N. Dirac equation, hydrogen atom spectrum and the Lamb shift in dynamical non-commutative spaces. Pramana - J Phys 88, 77 (2017). https://doi.org/10.1007/s12043-017-1381-4
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DOI: https://doi.org/10.1007/s12043-017-1381-4