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RE: Elementary fermions: the particles of matter… (Particle Physics Series – Episode 3A)
Do you think that quantum physics will help humanity after we manage to develop quantum computers(which hopefully will appear in the next 10-15 years)?
Hello @ fujiwara, well it depends...
It is already heavily integrated in our technology you know (for example, lasers in CD players, classical computer chips and components).
Do you think that with some perspective, humanity is better off now than before? Ultra fast computer based trading that decimates real economies, that would be a serious con, but I suppose also that instant communication has minimized and even solved many problems... So it's up to your own appreciation.
We do not really know what would be the effect of quantum computers on humanity. With such a calculation power, the emergence of AI could be possible. Will it be benevolent (and solve all humanity's problems), or will it be malevolent (Terminator and Skynet... hello!)...
Actually, what I enjoy when studying and teaching particle physics, is not the technological perspectives it can provide, but getting closer to understanding nature....
"Ultra fast computer based trading " seems like it will be the first practical application of entanglement, right now they all compete to see who can be physically closest to the exchange so they can trade faster than the other guy.
It has already been happening for years... unfortunately (Classical computers are way fast enough )
right but with a quantum communications you would not need to be physically close to the exchange, there would be no delay at all or advantage of physical proximity.
I think you might still have the old view of the exchange with people shouting orders... I am not 100% sure, but I believe 99.9% transactions now are carried out by computer (i.e. from any place in the world in any market in the world...).
my understanding is , if I have a trading computer and you have a trading computer and mine has a 1 picosecond delay and you are twice as far away and have a 2 picosecond delay then I win. But quantum communications would make it literally instantaneous, there is not any delay with entangled particles right?
Oh, but here you are talking about entanglement... it's more of a communication issue than quantum computer processing power... if 2 particles entangled, there would be no delay, would you be 2 blocks away or the other side of the universe ...
exactly