Related Experiment Video
Updated: Aug 26, 2025
16:11
Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
9.4K
Two-particle time-domain interferometry in the fractional quantum Hall effect regime.
1Université Paris-Saclay, CEA, CNRS, SPEC, 91191, Gif-sur-Yvette, Cedex, France.
Nature Communications
|October 4, 2022
Summary
This study demonstrates that anyons, exotic quasi-particles, maintain quantum coherence during propagation. This finding is crucial for advancing quantum information tasks and braiding anyons.
Area of Science:
- Condensed Matter Physics
- Quantum Information Science
Background:
- Quasi-particles are elementary excitations in quantum phases.
- Maintaining quantum coherence in quasi-particles is vital for quantum information processing.
- Anyons, found in the Fractional Quantum Hall Effect, exhibit unique statistics.
Purpose of the Study:
- To demonstrate that anyons retain quantum coherence while propagating.
- To investigate the quantum coherence of anyons using a novel interferometric technique.
- To assess the feasibility of controlled quantum coherent braiding of anyons.
Main Methods:
- Utilized a novel interferometric approach for transmitting anyons.
- Performed two-particle time-domain interference measurements.
- Measured the two-particle Hanbury Brown Twiss phase to quantify coherence.
Main Results:
- Demonstrated that anyons maintain quantum coherence during propagation.
- Observed significant coherence visibilities of 53% and 60% for anyons with charges e/5 and e/3, respectively.
- Contrasted findings with previous observations in different interferometer types.
Conclusions:
- Anyons do indeed preserve quantum coherence while propagating.
- Results provide a positive outlook for the manipulation of anyons in quantum information.
- The study supports the potential for controlled quantum coherent braiding of anyons.
Related Concept Videos
02:32The de Broglie Wavelength
26.1K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
26.1K
01:30The Hall Effect
2.6K
Edwin H. Hall, in the year 1879, devised an experiment that could be used to identify the polarity of the predominant charge carriers in a conducting material. From a historical perspective, this experiment was the first to demonstrate that the charge carriers in most metals are negative.
2.6K
04:08The Uncertainty Principle
23.6K
Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...
23.6K