Angular focusing, squeezing and rainbow formation in a strongly driven quantum rotor
| Autor: | R Arvieu, Ilya Sh. Averbukh |
|---|---|
| Přispěvatelé: | Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
Physics
Field (physics) Rotor (electric) Dynamics (mechanics) General Physics and Astronomy Semiclassical physics 02 engineering and technology 42.50.Vk 32.80.Pj 33.80.-b 021001 nanoscience & nanotechnology Laser 01 natural sciences [PHYS.PHYS.PHYS-GEN-PH]Physics [physics]/Physics [physics]/General Physics [physics.gen-ph] law.invention Total angular momentum quantum number law 0103 physical sciences Angular momentum coupling Atomic physics 010306 general physics 0210 nano-technology Quantum |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2001, 87, 163601-(4 p.). ⟨10.1103/PhysRevLett.87.163601⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.87.163601⟩ |
| Popis: | Semiclassical catastrophes in the dynamics of a quantum rotor (molecule) driven by a strong time-varying field are considered. We show that for strong enough fields, a sharp peak in the rotor angular distribution can be achieved via a time-domain focusing phenomenon, followed by the formation of rainbowlike angular structures. A strategy leading to the enhanced angular squeezing is proposed that uses a specially designed sequence of pulses. The predicted effects can be observed in many processes, ranging from molecular alignment (orientation) by laser fields to heavy-ion collisions, and the trapping of cold atoms by a standing light wave. |
| Databáze: | OpenAIRE |
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