Quantum coherence of discrete kink solitons in ion traps
arXiv:0910.0113 · doi:10.1103/PhysRevLett.104.043004
Abstract
We propose to realize quantized discrete kinks with cold trapped ions. We show that long-lived solitonlike configurations are manifested as deformations of the zigzag structure in the linear Paul trap, and are topologically protected in a circular trap with an odd number of ions. We study the quantum-mechanical time evolution of a high-frequency, gap separated internal mode of a static kink and find long coherence times when the system is cooled to the Doppler limit. The spectral properties of the internal modes make them ideally suited for manipulation using current technology. This suggests that ion traps can be used to test quantum-mechanical effects with solitons and explore ideas for the utilization of the solitonic internal-modes as carriers of quantum information.
5 pages, 4 figures ; minor corrections
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- Precise Experimental Investigation of Eigenmodes in a Planar Ion Crystal
- Probing Nanofriction and Aubry-type signatures in a finite self-organized system
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- Measurement of the Coulomb Logarithm in a Radio-Frequency Paul Trap
- Finite temperature spectrum at the symmetry-breaking linear-zigzag transition
- Stationary discrete solitons in circuit QED
- Structural phase transitions and topological defects in ion Coulomb crystals
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- Stability and dynamics of ion rings in linear multipole traps
- Quantum reservoirs with ion chains
- Nanofriction and motion of topological defects in self-organized ion Coulomb crystals
- Quantum nanofriction in trapped ion chains with a topological defect
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- Design of a Surface Trap for Freely Rotating Ion Ring Crystals
- Many-Body Physics with Trapped Ions
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- Soft quantum vibrations of PT-symmetric nonlinear ion chain
- Quench Dynamics of Two Coupled Ionic Zig-Zag Chains