[personal profile] nibot

Meh. I was all set to get an MRI brain-scan tomorrow morning in return for taking some quantum superposition of a sugar pill and this substance:

But it seems that "because of their cholinomimetic actions, cholinesterase inhibitors should be prescribed with care to patients with a history of asthma or obstructive pulmonary disease" I'm not eligible for the experiment. )-:

The other funny thing that happened today is that I called Diane and Christos Papadimitriou answered the phone!

Re: nitpicking....

Date: 2004-02-12 02:02 pm (UTC)
From: [identity profile] nibot.livejournal.com
[livejournal.com profile] kennyjensen says you're right about mixed states and superpositions being different:
i'm going to have to go with greenanemone on this one.  a mixed state is                                                                     
different than a superposition.  a mixed state describes an ensemble of                                                                      
states.  maybe 1/2 of the states in the ensemble are in the state |00>+|01>                                                                  
and maybe the other 1/2 are in the state |00>+|11>.  a superposition                                                                         
describes one state which could have components along a number of basis                                                                      
states.                                                                                                                                      
                                                                                                                                             
if you want to learn more about mixed states look up stuff on the "density                                                                   
matrix."  sakurai has info about it.  but actually, nielson and chuang, a                                                                    
quantum computing text, might be the best resource.             

But I think that 'superposition' does have the meaning I intended.

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