Breakthrough for Quantum Measurement

said_captain_said_wo writes to tell us that PhysicsWeb is reporting that two teams of physicists have developed a new method for measuring the state of quantum bits in a quantum computer without disturbing the state. From the article: "In the future, the Josephson capacitance could be used for operations in a large-scale quantum computer," says Mika Sillanpaa of Helsinki University. "The Josephson inductance and Josephson capacitance together would also allow us to build new types of quantum 'band engineered' electronic devices, such as low-noise parametric amplifiers."

Comments

Heisenberg Uncertainty Principle?

[SRA8]

Wouldnt this violate the Heisenberg Uncertainty Principle?

Re:Is quantum computing useful beyond decryption?

[Jace of Fuse!]

In particular, something like rendering an environment in real-time won't be helped because there's an unpredictable input (the human).

Durring the 1/60th (or less) of a second that your system is rendering a single frame in that game, the state of the scene and all objects (as well as light positions, textures, and overlays) is very static. It just doesn't seem like it to you, because you are very slow compared to your computer.

There could be hundreds of applications of a Quantum Co-Processor in a game, from testing for occlusion in a 3D scene, to making AI decisions in computer controlled characters.

Quantum Computing may very well not be immediately useful in many traditional computation tasks ("While this value is true then do that") but it will open up whole new ways of tackling processes that are time consuming with today's methods ("do any of these things give us this, that, or something in between?").

Just thinking about it gives me that Fuzzy Logic Feeling...

Re:Crap!

[$RANDOMLUSER]

"I changed the article by reading it" is a terrific joke.

"The author changed the article by writing it" may be the best analogy to quantum computing I've run into. At the moment he finished the article, the author caused the article to collapse from all the articles it might have been the the article it actually was. As he was writing it, it simultaneously passed through all the possible articles (states) it might have been, to become the final article (state). Becoming is infinite, being is finite.