From a single- to a double-well Penning trap

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 configurat...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2010-10, Vol.82 (4), Article 044302
Main Authors: Ciaramicoli, G., Marzoli, I., Tombesi, P.
Format: Article
Language:English
Subjects:
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
FREQUENCY RANGE
HARMONIC POTENTIAL
INFORMATION
KHZ RANGE
NUCLEAR POTENTIAL
OSCILLATIONS
POTENTIALS
QUANTUM INFORMATION
TRAPS
TUNNEL EFFECT
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Summary: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 {mu}m.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.82.044302