Generation of continuous variable squeezing and entanglement of trapped ions in time-varying potentials

Alessio Serafini, Alex Retzker, Martin B. Plenio

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We investigate the generation of squeezing and entanglement for the motional degrees of freedom of ions in linear traps, confined by time-varying and oscillating potentials, comprised of a DC and an AC component. We show that high degrees of squeezing and entanglement can be obtained by controlling either the DC or the AC trapping component (or both), and by exploiting transient dynamics in regions where the ions' motion is unstable, without any added optical control. Furthermore, we investigate the time-scales over which the potentials should be switched in order for the manipulations to be most effective.

Original languageAmerican English
Pages (from-to)619-630
Number of pages12
JournalQuantum Information Processing
Volume8
Issue number6
DOIs
StatePublished - Dec 2009
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgments This work has been supported by the European Commission under the Integrated Project QAP, funded by the IST directorate as Contract Number 015848, by the EU STREP projects CORNER and HIP, by a Royal Society Wolfson Research Merit Award, by EPSRC project number EP/E045049/1 and is part of the EPSRC QIP-IRC.

Keywords

  • Control
  • Entanglement
  • Ion traps

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