Accession Number:

AD1076887

Title:

Coupled Quantized Mechanical Oscillators

Descriptive Note:

Journal Article - Embargoed Full-Text

Corporate Author:

National Institute of Standards and Technology, Time and Frequency Division Boulder United States

Report Date:

2011-02-23

Pagination or Media Count:

4.0

Abstract:

The harmonic oscillator is one of the simplest physical systems but also one of the most fundamental. It is ubiquitous in nature, often serving as an approximation for a more complicated system or as a building block in larger models. Realizations of harmonic oscillators in the quantum regime include electromagnetic fields in a cavity13 and the mechanical modes of a trapped atom4 or macroscopic solid5. Quantized interaction between two motional modes of an individual trapped ion has been achieved by coupling through optical fields6, and entangled motion of two ions in separate locations has been accomplished indirectly through their internal states7. However, direct controllable coupling between quantized mechanical oscillators held in separate locations has not been realized previously. Here we implement such coupling through the mutual Coulomb interaction of two ions held in trapping potentials separated by 40 mm similar work is reported in a related paper8. By tuning the confining wells into resonance, energy is exchanged between the ions at the quantum level, establishing that direct coherent motional coupling is possible for separately trapped ions. The system demonstrates a building block for quantum information processing and quantum simulation. More broadly, this work is a natural precursor to experiments in hybrid quantum systems, such as coupling a trapped ion to a quantized macroscopic mechanical or electrical oscillator913.

Subject Categories:

  • Electrical and Electronic Equipment
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE