CS140 Current Technology Article Review Unit ___2___
1. Locate a current article (published within the last 6 months). A list of suggested sources is
posted in Textbooks and Material link in the Information Module.
2. Complete the Summary information below on the form below.
3. Submit your form for grading.
Title of the Article
Topic
Author
Publisher
Date of Publication
Link to Article
Quantum Repeaters for a Global Quantum Internet
Linking quantum computers across great distances
Charles Q. Choi
IEEE Spectrum
June 13th, 2023
https://spectrum.ieee.org/quantum-computing2661185476#toggle-gdpr
Main idea of the article:
The main idea of the article is to elaborate on why linking quantum computers across
great distances is a huge deal. The article then goes on to explain the breakthroughs
that the quantum repeaters have had so far.
Information presented: List at least five points made by the author
1. Previously people used optical fiber to keep ions entangled for a distance of 230
meters.
2. A quantum repeater can keep ions entangled for over 50km.
3.The repeater can transmit entangled photons at the rate of 9.2 per second.
4. Without a repeater transmissions rates drop significantly at distances more than
100 km.
5. A new repeater possess a pair of calcium ions captured in an ion trap used as two
quantum memories.
Response to the article:
This article had a lot of information to unload. In turn it appears that with the use of
this technology researchers will be able to link quantum computers farther and with
better results. Although these researchers have created the repeater they are still
looking for more ways to improve on its functionality to connect super computers to
different countries!