Magnetic-field-driven localization of light in a cold-atom gas.
نویسندگان
چکیده
We discover a transition from extended to localized quasimodes for light in a gas of immobile two-level atoms in a magnetic field. The transition takes place either upon increasing the number density of atoms in a strong field or upon increasing the field at a high enough density. It has many characteristic features of a disorder-driven (Anderson) transition but is strongly influenced by near-field interactions between atoms and the anisotropy of the atomic medium induced by the magnetic field.
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عنوان ژورنال:
- Physical review letters
دوره 114 5 شماره
صفحات -
تاریخ انتشار 2015