Comments on: Physics: A step to the side

By: Geoff

Geoff — Fri, 12 Oct 2007 07:49:53 +0000

Yeah, it’s hard to say. The biggest problem right now tends to be decoherance. How do you get the qubits to be sufficiently isolated from the environment such that, while performing the quantum computation, they will not be “observed” and hence collapse from their quantum superposition into a purely up or down state (think Schrodinger’s cat here)? But we also need a set up where, when we want to collapse the qubits, we can, and also then measure what state comes out. So there’s that, and then the second big problem tends to be entangling many qubits together in a *scalable* architecture. I really don’t know how long it will be before we get a “quantum computer” (capable of doing something more than our current classical computers can do), but I know there will still be a lot of work to do even after that first breakthrough is made, so this field will last long enough for the current generation to get involved.

By: Tony

Tony — Fri, 12 Oct 2007 02:15:29 +0000

I would think that would depend on your perception of a computer. There are prototypes out there already, but this new technology is at the stage equivalent to vacuum tubes for digital computers. It might be really cool to get into Physics, because you’ll be right there as the technology develops.

By: pozycjonowanie

pozycjonowanie — Thu, 11 Oct 2007 23:28:21 +0000

I’m really interested in quantum computer’s.Soon we will have a core courses about quantum computer’s at our studies – Physics in the Adam Mickiewicz University in Poland and i’m itch for it.
What do You think – When will be establish the first quantum computer ? In near or further future ?
PS.
Sorry for my bad english