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Los haces de vórtice de átomos y moléculas
Alon Luski1, Yair Segev1, Rea David1
1Faculty of Chemistry, Weizmann Institute of Science, Rehovot, Israel.
Science (New York, N.Y.)
|September 13, 2021
Resumen
Los investigadores crearon haces de vórtice usando átomos y moléculas, no sólo partículas elementales. Este avance en el momento angular orbital (OAM) podría avanzar en la investigación de la física atómica.
Área de la Ciencia:
- La mecánica cuántica
- Física atómica y molecular
- Óptica y fotónica
Sus antecedentes:
- El momento angular orbital (OAM) es crucial en la mecánica cuántica, observado desde partículas subatómicas hasta superfluidos.
- Los haces de vórtice con OAM se crean rutinariamente utilizando fotones y electrones.
- La creación experimental de haces de vórtice con partículas no elementales permaneció sin lograr.
Objetivo del estudio:
- Para demostrar experimentalmente la creación de haces de vórtice usando partículas no elementales como átomos y moléculas.
- Establecer un método general para la generación de haces de vórtice OAM en gases atómicos y moleculares.
Principales métodos:
- Difracción de rayos supersónicos de átomos de helio y dímeros de las rejillas de transmisión.
- Utilizando un método general aplicable a varios gases atómicos y moleculares.
Principales resultados:
- Se generaron con éxito haces de vórtice que transportan momento angular orbital (OAM) utilizando átomos de helio y dímeros.
- Se ha demostrado que el método de difracción es eficaz para las partículas no elementales.
Conclusiones:
- La creación de haces de vórtice atómico y molecular es ahora factible experimentalmente.
- Esto abre nuevas vías en la física atómica para explorar colisiones e interacciones utilizando OAM.
- La generalidad del método sugiere una amplia aplicabilidad en diferentes sistemas atómicos y moleculares.
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