Journal article
Transient non-confining potentials for speeding up a single ion heat pump



Publication Details
Authors:
Torrontegui, E.; Dawkins, S.; Göb, M.; Singer, K.
Publication year:
2018
Journal:
New Journal of Physics
Pages range:
105001
Volume number:
20
ISSN:
1367-2630

Abstract

We propose speeding up a single ion heat pump based on a tapered ion
trap. If a trapped ion is excited in an oscillatory motion axially the
radial degrees of freedom are cyclically expanded and compressed such
that heat can be pumped between two reservoirs coupled to the ion at the
turning points of oscillation. Through the use of invariant-based
inverse engineering we can speed up the process without sacrificing the
efficiency of each heat pump cycle. This additional control can be
supplied with additional control electrodes or it can be encoded into
the geometry of the radial trapping electrodes. We present a novel
insight into how speed up can be achieved through the use of inverted
harmonic potentials and verify the stability of such trapping
conditions.


Last updated on 2018-26-11 at 09:27

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