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19932022
most citedHydrogen Atom Spectrum and the Lamb Shift in Noncommutative QED

673 citations · 3.6k across the 100 of their papers we have counts for

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hep-th2000★ 673 cited

Hydrogen Atom Spectrum and the Lamb Shift in Noncommutative QED

M. Chaichian, M. M. Sheikh-Jabbari, A. Tureanu

We have calculated the energy levels of the hydrogen atom and as well the Lamb shift within the noncommutative quantum electrodynamics theory. The results show deviations from the…

hep-th2000★ 14 cited

New Superconformal Field Theories in Four Dimensions and N=1 Duality

M. Chaichian, W. F. Chen, C. Montonen

Recently, developments in the understanding of low-energy N=1 supersymmetric gauge theory have revealed two important phenomena: the appearance of new four-dimensional superconform…

hep-th2000★ 1 cited

High-dimensional sources for the four-dimensional gravity

M. Chaichian, M. Gogberashvili, A. B. Kobakhidze

We argue that a certain distribution of matter in higher dimensions can provide the correct behaviour of gravity in four dimensions. Some explicit examples illustrating the idea ar…

hep-th2000★ 5 cited

Field Theory on Noncommutative Space-Time and the Deformed Virasoro Algebra

M. Chaichian, A. Demichev, P. Presnajder

We consider a field theoretical model on the noncommutative cylinder which leads to a discrete-time evolution. Its Euclidean version is shown to be equivalent to a model on the com…

hep-th2000★ 38 cited

Mass hierarchy and localization of gravity in extra time

Masud Chaichian, Archil B. Kobakhidze

We consider Randall-Sundrum model with localized gravity, replacing the extra compact space-like dimension by a time-like one. In this way the solution to the hierarchy problem can…

hep-th2000

Effects of Trilinear Term in Softly Broken N=1 Supersymmetric QCD

M. Chaichian, W. F. Chen, T. Kobayashi

Softly broken dual magnetic theory of N=1 supersymmetric SU(N_c) QCD with N_f flavours is investigated with the inclusion of trilinear coupling term of scalar fields in the case of…