期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.233001
关键词
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资金
- ERC Synergy Grant UQUAM
- Austrian Science Fund through SFB FOQUS (FWF Project) [F4016-N23]
- EU FET Proactive Initiative SIQS
- NSF
- Smithsonian Astrophysical Observatory
We discuss the generation of subwavelength optical barriers on the scale of tens of nanometers, as conservative optical potentials for cold atoms. These arise from nonadiabatic corrections to Born-Oppenheimer potentials from dressed dark states in atomic. configurations. We illustrate the concepts with a double layer potential for atoms obtained from inserting an optical subwavelength barrier into a well generated by an off-resonant optical lattice, and discuss bound states of pairs of atoms interacting via magnetic dipolar interactions. The subwavelength optical barriers represent an optical Kronig-Penney potential. We present a detailed study of the band structure in optical Kronig-Penney potentials, including decoherence from spontaneous emission and atom loss to open bright channels.
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