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Synthetic clock transitions via continuous dynamical decoupling.

D Trypogeorgos1, A Valdés-Curiel1, N Lundblad2

  • 1Joint Quantum Institute, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742, USA.

Physical Review. A
|April 19, 2019
PubMed
Summary
This summary is machine-generated.

Researchers created synthetic clock transitions in a Bose-Einstein condensate, significantly reducing sensitivity to magnetic-field noise. This breakthrough advances quantum science and enables new cold-atom experiments.

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Area of Science:

  • Quantum Science
  • Atomic Physics
  • Condensed Matter Physics

Background:

  • Decoherence in quantum systems arises from environmental fluctuations, hindering quantum science.
  • Clock transitions enhance coherence by being insensitive to environmental noise but aren't universally applicable.
  • Developing new methods for noise-resilient quantum states is crucial for advancing quantum technologies.

Purpose of the Study:

  • To engineer synthetic clock transitions in a spin-1 Bose-Einstein condensate.
  • To significantly reduce the system's sensitivity to magnetic-field noise.
  • To create robust quantum states for advanced cold-atom experiments.

Main Methods:

  • Utilized continuous dynamical decoupling to create a trio of synthetic clock transitions.
  • Employed a concatenated scheme to suppress sensitivity to control field fluctuations.
  • Investigated a spin-1 Bose-Einstein condensate system.

Main Results:

  • Achieved a reduction in sensitivity to magnetic-field noise by up to four orders of magnitude.
  • Demonstrated suppression of sensitivity to control field fluctuations.
  • Created field-insensitive quantum states.

Conclusions:

  • Synthetic clock transitions offer a powerful method to combat decoherence in quantum systems.
  • These field-insensitive states are foundational for next-generation cold-atom experiments.
  • The work paves the way for exploring quantum magnetism, artificial gauge fields, and topological matter.