July 2009 Archives | Musings

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Austin Weather^#

Friday

Partly Sunny
High: 75°F
PoP: 0%

Friday Night

Mostly Clear
Low: 48°F
PoP: 0%

Saturday

Sunny
High: 78°F
PoP: 0%

Saturday Night

Mostly Clear
Low: 59°F
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Currently:

Fair, 50.0°F (10.0°C)
(Doppler Radar)

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$MathML logo$ Posts with this logo use MathML. The posts were authored in itex (an extension of WebTeX) using the itexToMML Text Filter plugin for MovableType (the README file).

Calendar

July 2009's Entries

Musical Interlude II
- Jul 10, 2009
- More musical tidbits.

Random Past Entries

Chiral Symmetry Breaking
- Aug 7, 2006
- On the Sakai-Sugimoto model.
Pure Spinor Signature
- Mar 27, 2010
- Pure spinor query.
PDF Accessibility
- Aug 23, 2005
- Pdftex, Design Science, and Joe Clark on accessible PDF.
Haiku
- Dec 31, 2009
- Code as poetry
Cancellations
- Jul 28, 2007
- More on N=8 supergravity.

MT How-To

Validating Comments
- May 3, 2003
- Run comments through the W3C Validator before posting. The first in a series of “How-To” articles on MovableType.
Bullet-Proofing II
- May 11, 2003
- More bullet-proofing tips to ensure your blog is valid XHTML
Text Filters for Comments
- May 19, 2003
- Allow a choice of Text Filters in your Comment-entry form.
Serve it Up!
- May 26, 2003
- Serving your blog as XHTML 1.1 with a MIME-type of application/xhtml+xml.
<abbr>, <acronym>, Accessibility & ...
- Sep 10, 2003
- A tutorial on marking up abbreviations and an MT plugin which makes the job easy.
Forcing Comment Previews
- Jun 16, 2004
- Introducing the MTHash plugin, and a reliable way to force Comment Previews.
Internationalization and Trackbacks
- Feb 17, 2005
- In which our hero gets fed up with gibberish Trackbacks and takes matters in his own hands.

Recent Comments

Golem VI (4)
- Jacques Distler
  - Sep 30, 2024 17:32
  - There are many reasons why that would have been advantageous. A Linux virtual machine on one of the UDC servers ...
- Jimmy
  - Sep 30, 2024 17:27
  - Any plans to migrate to Linux on non-Apple hardware?
- Jacques Distler
  - Sep 30, 2024 11:14
  - Well, the M2 sports 10 GPU cores and 16 Neural Engine cores. So Apple clearly had some AI features in ...
- Mitchell Porter
  - Sep 30, 2024 10:17
  - Welcome to Golem VI! I wonder to what extent AI will become part of the OS, in this or the ...

Motivation (32)
- Jacques Distler
  - Sep 16, 2024 12:00
  - So silly to have Distler (and Witten) still talking this way ~ 2 decades later… You did read the date ...
- Mark Paris
  - Sep 16, 2024 10:56
  - “String Theory is the only plausible vehicle” (still) seems short-sighted and myopic. Such commentary, if it’s at all necessary (it’s ...
- James Redford
  - Jan 6, 2008 21:19
  - For the correct quantum gravity theory, see the below paper: F. J. Tipler, “The structure of the world from pure ...
- boreds
  - Sep 2, 2005 11:42
  - Right, that’s pretty much what I meant above. Thanks Jacques
- Jacques Distler
  - Sep 2, 2005 11:33
  - So is there a heuristic way to see how string theory sorts out this mess? String Theory treats the metric ...

The Zinn-Justin Equation (1)
- Rich
  - Aug 2, 2024 16:49
  - Hello, Prof. Distler. I just read this post: https://golem.ph.utexas.edu/~distler/blog/archives/002943.html#more What would you say is a good undergrad particle physics book ...

Entanglement for Laymen (17)
- Blakely Moore
  - Jun 21, 2024 11:50
  - Obviously I am very late to this post, but I just wanted to say that as a layperson (with absolutely ...
- Jacques Distler
  - Feb 12, 2024 12:46
  - Just to be clear, there’s nothing special about 45 ∘45^\circ. You can write down the projection matrices P A(θ),P B(θ)P_A(\theta),P_B(\theta) ...
- Jacques Distler
  - Feb 11, 2024 11:46
  - Sorry, but no. The state of the photon pair (in an obvious basis) is ρ c=12(0 0 0 0 0 ...
- Stefan G Freundt
  - Feb 11, 2024 01:19
  - Sorry, but your explanation is wrong. If you rotate the polarization filters by 45 degrees, they are either aligned the ...
- Peter
  - Jan 19, 2024 11:10
  - https://vixra.org/abs/1609.0129 A Classical System for Producing “Quantum Correlations” by Robert H. McEachern includes Shannon classical noise to model quantum correlations.

Responsibility (29)
- Jacques Distler
  - Jan 20, 2024 11:02
  - It appears (from the handful of inquiries I’ve gotten since this was published — I just got another one yesterday) ...
- Jacques Distler
  - Mar 18, 2017 10:37
  - The theorem about Fourier Transforms is correct (and, of course, has nothing to do with Relativity). Your leap from that ...
- dx
  - Mar 18, 2017 08:34
  - Jaques, The crucial idea required to wed quantum mechanics and relativity is the idea of antiparticles, which arise naturally when ...
- Vladimir Kalitvianski
  - Mar 17, 2017 12:10
  - As I got stuck at f i(k→)f^i(\vec{k}) and the continuity equation is postulated rather than derived from (1), I am ...
- Vladimir Kalitvianski
  - Mar 16, 2017 08:21
  - For the sake of coherence with x ix^i, we should have written the function ff with the upper index (superscript), ...

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July 10, 2009

Musical Interlude II

Time for another peak into the contents of my iPod.

Continue reading “Musical Interlude II” ...

Posted by distler at 10:40 PM | Permalink | Followups (5)