Trapping and manipulation of isolated atoms using nanoscale plasmonic structures

Abstract

We propose and analyze a scheme to interface individual neutral atoms with nanoscale solid-state systems. The interface is enabled by optically trapping the atom via the strong near-field generated by a sharp metallic nanotip. We show that under realistic conditions, a neutral atom can be trapped with position uncertainties of just a few nanometers, and within tens of nanometers of other surfaces. Simultaneously, the guided surface plasmon modes of the nanotip allow the atom to be optically manipulated, or for fluorescence photons to be collected, with very high efficiency. Finally, we analyze the surface forces and heating and decoherence rates acting on the trapped atom.

5 pages, 2 figures

References in corpus (6)

• Many-Body Physics with Ultracold Gases
• High-sensitivity diamond magnetometer with nanoscale resolution
• Strong coupling of single emitters to surface plasmons
• Bose-Einstein condensate coupled to a nanomechanical resonator on an atom chip
• Quantum Information Processing in Optical Lattices and Magnetic Microtraps
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