Roger: I would think that if we ever achieve the goal of 'room temperature' superconductors the josephson junction will be the next great technology. As I understand the effect the potential switching speeds are unimaginably fast.
Current CMOS gates are damn fast, its the interconnect capacitance and speed of light that causes the problems, not the picosecond gate delays.
Quantum computing is the way to go, with computers operating in parallel universes.
They've been doing work with quantum computing (as they have been for a couple decades), but recently I heard of a breakthrough where they were able to transmit a single (it might have been trinary) bit using the principles of entanglement (I think that is the right quantum principle) at faster than the speed of light.
The principle works because the location or speed (but not both) of one particle can be directly related to the location or speed of another. Thus they affect particle A and read the results on particle B without anything actually traveling between the input and output.
In theory, this could work across large distances, and thus we have [every] SciFi movie communication system.
using the principles of entanglement (I think that is the right quantum principle) at faster than the speed of light.
I've only listened to bits of science news on entanglement. I had the strong impression that there isn't a way of transmitting information with entanglement. The random things that happen to the particles happen instantaneously but we can't influence these random things.
I do wonder about tunneling. Tunneling occurs faster than light. I saw a TV program where they transmitting classical music through a metal block about a meter long. They used tunneling so the transmission was faster than light (I don't remember how much faster).
Comments
The paths of high frequencies are a big mystery.
Because those D-cells have the same capacity as an AA cell - just a standard consumer rip-off...
See "The Fabric of Reality" by David Deutsch for more such ideas...
Current CMOS gates are damn fast, its the interconnect capacitance and speed of light that causes the problems, not the picosecond gate delays.
The principle works because the location or speed (but not both) of one particle can be directly related to the location or speed of another. Thus they affect particle A and read the results on particle B without anything actually traveling between the input and output.
In theory, this could work across large distances, and thus we have [every] SciFi movie communication system.
I've only listened to bits of science news on entanglement. I had the strong impression that there isn't a way of transmitting information with entanglement. The random things that happen to the particles happen instantaneously but we can't influence these random things.
I do wonder about tunneling. Tunneling occurs faster than light. I saw a TV program where they transmitting classical music through a metal block about a meter long. They used tunneling so the transmission was faster than light (I don't remember how much faster).
Duane