From a single- to a double-well Penning trap

Details From a single- to a double-well Penning trap From a single- to a double-well Penning trap

2010-08-18

arxiv.org/abs/1008.3058v1

Physics

Quantum Physics

4 pages, 7 figures

Scientific paper

The new generation of planar Penning traps promises to be a flexible and versatile tool for quantum information studies. Here, we propose a fully controllable and reversible way to change the typical trapping harmonic potential into a double-well potential, in the axial direction. In this configuration a trapped particle can perform coherent oscillations between the two wells. The tunneling rate, which depends on the barrier height and width, can be adjusted at will by varying the potential difference applied to the trap electrodes. Most notably, tunneling rates in the range of kHz are achievable even with a trap size of the order of 100 microns.

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