The effects of quantum coherence in X-ray optics at nuclear transitions are
investigated from a theoretical point of view. First, we introduce the general concept
of the decaying dressed states and present a classification of the quantum coherence
effects in a three-level coherently driven system. Second, we show that the interference
effects may appear in X-ray radiation at the nuclear transitions under the condition of
the nuclear level anti-crossing. This effects are similar to electromagnetically induced
transparency, which has been widely studied earlier at the electronic transitions in
optics. We also suggest a new technique for inhomogeneous line narrowing at nuclear
transitions. This technique is based on the combined action of RF and DC fields
and adopted to be applied in the M¨ossbauer spectroscopy. Numerical simulation of a
simple model with the dipole-dipole interaction is presented in order to demonstrate
the efficiency of the technique. Finally, we study the possibility to suppress the nuclear
elastic forward scattering in the synchrotron experiments using trains of pulses. A
numerical model is developed to confirm this possibility and the main issue of relative
phases of consecutive pulses is discussed.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-3039 |
| Date | 15 May 2009 |
| Creators | Anisimov, Petr Mikhailovich |
| Contributors | Kocharovskaya, Olga |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Dissertation, text |
| Format | electronic, application/pdf, born digital |
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