Latest Quantum walk Stories

2010-03-10 12:19:15

A team of physicists headed by Christian Roos and Rainer Blatt from the Institute of Quantum Optics and Quantum Information of the Austrian Academy of Sciences realize a quantum walk in a quantum system with up to 23 steps. It is the first time that this quantum process using trapped ions is demonstrated in detail. When a hiker comes to a junction s/he has to decide which way to take. All of these decisions, eventually, lead the hiker to the intended destination. When the hiker forgot the...

2009-07-09 14:05:00

Bonn physicists take first step towards super-fast search algorithms for quantum computersWhen you toss a coin, you either get heads or tails. By contrast, things are not so definite at the microcosmic level. An atomic 'coin' can display a superposition of heads and tails when it has been thrown. However, this only happens if you do not look at the coin. If you do, it decides in favor of one of the two states. If you leave the decision where a quantum particle should go to a coin like this,...

Word of the Day
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.