↓ Skip to main content

Dynamically encircling an exceptional point for asymmetric mode switching

Overview of attention for article published in Nature, July 2016
Altmetric Badge

About this Attention Score

  • In the top 5% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (98th percentile)
  • Above-average Attention Score compared to outputs of the same age and source (55th percentile)

Mentioned by

news
14 news outlets
blogs
1 blog
twitter
11 tweeters
facebook
1 Facebook page

Readers on

mendeley
72 Mendeley
Title
Dynamically encircling an exceptional point for asymmetric mode switching
Published in
Nature, July 2016
DOI 10.1038/nature18605
Pubmed ID
Authors

Jörg Doppler, Alexei A. Mailybaev, Julian Böhm, Ulrich Kuhl, Adrian Girschik, Florian Libisch, Thomas J. Milburn, Peter Rabl, Nimrod Moiseyev, Stefan Rotter

Abstract

Physical systems with loss or gain have resonant modes that decay or grow exponentially with time. Whenever two such modes coalesce both in their resonant frequency and their rate of decay or growth, an 'exceptional point' occurs, giving rise to fascinating phenomena that defy our physical intuition. Particularly intriguing behaviour is predicted to appear when an exceptional point is encircled sufficiently slowly, such as a state-flip or the accumulation of a geometric phase. The topological structure of exceptional points has been experimentally explored, but a full dynamical encircling of such a point and the associated breakdown of adiabaticity have remained out of reach of measurement. Here we demonstrate that a dynamical encircling of an exceptional point is analogous to the scattering through a two-mode waveguide with suitably designed boundaries and losses. We present experimental results from a corresponding waveguide structure that steers incoming waves around an exceptional point during the transmission process. In this way, mode transitions are induced that transform this device into a robust and asymmetric switch between different waveguide modes. This work will enable the exploration of exceptional point physics in system control and state transfer schemes at the crossroads between fundamental research and practical applications.

Twitter Demographics

The data shown below were collected from the profiles of 11 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 72 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Germany 1 1%
Belgium 1 1%
Austria 1 1%
Vietnam 1 1%
Canada 1 1%
Unknown 67 93%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 33 46%
Researcher 12 17%
Professor 8 11%
Student > Bachelor 5 7%
Student > Master 5 7%
Other 9 13%
Readers by discipline Count As %
Physics and Astronomy 53 74%
Engineering 11 15%
Unspecified 3 4%
Mathematics 2 3%
Agricultural and Biological Sciences 1 1%
Other 2 3%

Attention Score in Context

This research output has an Altmetric Attention Score of 117. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 September 2016.
All research outputs
#71,249
of 8,380,241 outputs
Outputs from Nature
#7,566
of 48,028 outputs
Outputs of similar age
#5,046
of 260,514 outputs
Outputs of similar age from Nature
#419
of 945 outputs
Altmetric has tracked 8,380,241 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 48,028 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 74.8. This one has done well, scoring higher than 84% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 260,514 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 98% of its contemporaries.
We're also able to compare this research output to 945 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 55% of its contemporaries.