--- you're telling me the idea that you can store information in a quantum state, and retrieve it later is bunk? That certain specific reactions can change this information in a predictable repeatable fashion is unrealistic? Really? You sure? ---<br /><br />A lot of devices "store information in a quantum state, and retrieve it later ". <br />There is a dE*Dt />=1 quantum restriction.<br />For the state to be well defined, dE must be far less than distance to closest energy level, which means that dT should be big enough. But, you want it to happen fast, since the whole purpose is to have fast computer.<br />In other words, the idea that you will speed up computer by using low energy quantum processes is flawed from the very beginning.<br />The same thing is with "changing information in a predictable repeatable fashion" - it takes a lot of time to make it predictable and repeatable.<br />The normal devices go around this problem by using relatively large energies, so dT becomes small.<br /><br />The other suggestions of the modern alchemists, that promice you to turn Mercury into Gold / quantum ucertainty into precize calculations / are even more ridiculous <img src="/images/icons/smile.gif" /><br /><br />ES<br /><br /><br />