X-Message-Number: 12323 From: "Igor Artyuhov" <> Subject: Reply to George Smith (Message #12317) Date: Wed, 25 Aug 1999 16:20:35 +0400 >>> If being able to "fix" the spin on an atom such that it can then be used to digitize information (per Heisenberg's Uncertainty Principle) isn't a "quantum computer" and if working at the molecular level isn't "molecular nanotechnology" (per E. Drexler), I give up! What else should we call it? Itsy-bitsy atom-spinny computers? <<< Quantum computers (will) have a strongly different architecture and use totally different algorithms since they are based on the fact that the spin of an atom has two values simultaneously. N electrons are in 2^N states at once, so quantum computer with N quantum bits of memory can "work in 2^N states simultaneously". In theory it can be build using _macroscopic_ as well as atomic/molecular quantum elements such as so called quantum dots. A good tutorial on quantum computing can be found at http://chemphys.weizmann.ac.il/~schmuel/comp/comp.html Igor Artyuhov. ___________________________________________________ ICQ#: 34602339 You can page me through: http://wwp.icq.com/34602339#pager or through my EmailExpress address: (up to 450 characters) My Fax Number is: 209 927-3614 (in US) Rate This Message: http://www.cryonet.org/cgi-bin/rate.cgi?msg=12323