home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: sci.physics
- Path: sparky!uunet!stanford.edu!EE.Stanford.EDU!siegman
- From: siegman@EE.Stanford.EDU (Anthony E. Siegman)
- Subject: Re: Wavelets & Coherent States ?
- Message-ID: <1993Jan3.211626.3723@EE.Stanford.EDU>
- Organization: Stanford University
- References: <qg62r5g@rpi.edu>
- Distribution: usa
- Date: Sun, 3 Jan 93 21:16:26 GMT
- Lines: 22
-
- In article <qg62r5g@rpi.edu> sassoj@aix.rpi.edu (John J. Sasso Jr.) writes:
-
- >quantum mechanics. Although I have has a basic course in Q.M., can anyone
- >explain to me what coherent states are? Do they have anything to do with
- >phase-space localization?
-
- I can't explain them to you in a short note, but they are a
- basically simple and also very effective way of rephrasing the quantum
- theory of simple harmonic oscillators. To find out about them do some
- literature searching under the names of Glauber (Roy Glauber of
- Harvard University) and possibly Louisell, and perhaps look for some
- more modern and recent QM theory texts, not necessarily advanced ones
- -- possibly by Cohen-Tannoudji, or Messiah.
-
- I also think you are perceptive in noting a possible connection
- between wavelets and coherent states. Coherent states provide an
- "over-complete" basis for the SHO, which means that the expansion of a
- given arbitrary SHO state in coherent states is not unique (although
- there are preferred ways to do the expansion), and I suspect the same
- may be true of wavelets.
-
-
-