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|Type:||Artigo de periódico|
|Title:||ON THE PROPAGATORS FOR HARD-WALL POTENTIALS OSCILLATING PERIODICALLY WITH CONSTANT VELOCITY|
|Abstract:||Exact propagators for some moving hard-wall potentials with constant velocity have been previously found by the authors. Here, applying the semi-group property to these propagators, we first evaluate the exact propagators for the two one-dimensional quantum oscillating systems; (A) a free particle interacting with one hard-wall potential oscillating periodically with constant velocity, and (B) the Fermi-acceleration model with one wall oscillating periodically with constant velocity. We then discuss the energy of the system (B) by calculating its transition amplitudes. Finally, we analyse the classical paths and show that the semiclassical approximation to the propagators is not valid any more for the quantum oscillating systems considered.|
|Editor:||Elsevier Science Bv|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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