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Article #14987

Re: what is meant by wavefunction of free atom?

#14987
From: Jim Carr
Date: Tue, 21 Apr 1998 00:00
36 lines
2353 bytes

  ... is there a sci.matter newsgroup?  ...


MrYuriB@aol.com writes:
>
>hello there, whey they say wavefuntion of free atoms, exactly what are they
>referring to?  are they referring to the wavefuntion of electron in atoms or
>atom themselves?  what would a wavefunction of free atoms look like?

 You might ask "they" or look at the context in the book. 

 I would assume, from the condensed matter context implied by the choice 
 of newsgroups, that they are talking about the wavefunction of the 
 atomic electrons of an isolated atom -- as distinct from the wavefunction 
 when that atom is in a solid and those electrons interact with others. 

YuriB also asks:
}
}hello there, when they say that the Fermi surface of Cs is deformed by 10%
}from a sphere, what do they mean by that?  10% smaller in volume? 10%
}shorter/longer diameter?

 Deformed means the shape has changed, normally in a way that conserves 
 volume (as used in nuclear physics).  The precise meaning would have to 
 be spelled out, either as a ratio of major to minor axes or as the value 
 of the coefficient in a multipole expansion that has essentially the 
 same meaning.  If a precise definition is not given, just take it as a 
 general statement about the relative size of the axes. 

-- 
 James A. Carr   <jac@scri.fsu.edu>     | Commercial e-mail is _NOT_ 
    http://www.scri.fsu.edu/~jac/       | desired to this or any address 
 Supercomputer Computations Res. Inst.  | that resolves to my account 
 Florida State, Tallahassee FL 32306    | for any reason at any time. 
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From: jac@ibms48.scri.fsu.edu (Jim Carr)
Subject: Re: what is meant by wavefunction of free atom?
Date: 1998/04/21
Message-ID: <6hi91p$m4q$1@news.fsu.edu>
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Newsgroups: sci.physics,sci.physics.cond-matter,fj.engr.materials,sci.matter