Inductively guided circuits for ultracold dressed atoms

Sinuco-León, German A, Burrows, Kathryn A, Arnold, Aidan S and Garraway, Barry M (2014) Inductively guided circuits for ultracold dressed atoms. Nature Communications, 5. p. 5289. ISSN 2041-1723

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Recent progress in optics, atomic physics and material science has paved the way to study quantum effects in ultracold atomic alkali gases confined to non-trivial geometries. Multiply connected traps for cold atoms can be prepared by combining inhomogeneous distributions of DC and radio-frequency electromagnetic fields with optical fields that require complex systems for frequency control and stabilization. Here we propose a flexible and robust scheme that creates closed quasi-one-dimensional guides for ultracold atoms through the ‘dressing’ of hyperfine sublevels of the atomic ground state, where the dressing field is spatially modulated by inductive effects over a micro-engineered conducting loop. Remarkably, for commonly used atomic species (for example, 7Li and 87Rb), the guide operation relies entirely on controlling static and low-frequency fields in the regimes of radio-frequency and microwave frequencies. This novel trapping scheme can be implemented with current technology for micro-fabrication and electronic control.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
Depositing User: Catrina Hey
Date Deposited: 28 Oct 2014 11:57
Last Modified: 16 Jan 2018 15:51

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Project NameSussex Project NumberFunderFunder Ref
Devices based on Entanglement in Cold Arrays of Trapped AtomsG0340EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/I010394/1