Capacitive coupling of atomic systems to mesoscopic conductors

Details Capacitive coupling of atomic systems to mesoscopic conductors Capacitive coupling of atomic systems to mesoscopic conductors

2003-08-27

arxiv.org/abs/quant-ph/0308145v2

Physics

Quantum Physics

4 pages, including one figure. v2: Improved discussion of surface effects

Scientific paper

10.1103/PhysRevLett.92.063601

We describe a technique that enables a strong, coherent coupling between isolated neutral atoms and mesoscopic conductors. The coupling is achieved by exciting atoms trapped above the surface of a superconducting transmission line into Rydberg states with large electric dipole moments, that induce voltage fluctuations in the transmission line. Using a mechanism analogous to cavity quantum electrodynamics an atomic state can be transferred to a long-lived mode of the fluctuating voltage, atoms separated by millimeters can be entangled, or the quantum state of a solid state device can be mapped onto atomic or photonic states.

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