Dissertation
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Re: Dissertation
Posted by Leperous on Tue Mar 15th at 11:49pm 2005


At long last! I present the last 3 months of my life to you for your general perusement and abusement; I know many of you are quantum mechanical experts but please, hold back with the comments, as it's finished and will be posted first thing in the morning Enjoy!

http://www.snarkpit.com/pits/leperous/dissertation.pdf





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Re: Dissertation
Posted by SnarkSephiroth on Wed Mar 16th at 12:00am 2005


Ouch, I have a headache now. I seriously couldn't get to the seconed page, but from the looks of it, you know your stuff. Nice job sir Lep.
[addsig]




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Re: Dissertation
Posted by Dr Brasso on Wed Mar 16th at 12:14am 2005


nice work so far from what i can tell, oh epidermaly impoverished one......given that its not an easy read, ill congratulate you at this point on the simple principle of completing it, and ill get back to you after ive given it the read im sure it deserves....

gj mate .....feels good when its done dunnit??...

Doc B....





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Re: Dissertation
Posted by Rof on Wed Mar 16th at 12:48am 2005


Looks fun, but fortunately I never have to think about QM anymore.

That seems too short for a full thesis, so I assume it's for your conversion to a PhD programme, or whatever they call it at Oxford (DPhil?) Or perhaps it's for a MPhil by research?

Congrats, anyway.
[addsig]




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Re: Dissertation
Posted by Bewbies on Wed Mar 16th at 12:56am 2005


::eyes bleed::

skimmed through it - i like the obligatory pseudo-humble comment at the end. =P





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Re: Dissertation
Posted by satchmo on Wed Mar 16th at 12:57am 2005


Nice work, Lep.

Looks to me that initially you're referring to something similar to Heisenberg's Uncertainty Principle, in that the mere observation of an object will alter its state (i.e. a photon's interaction with an electron). And the discussion about a cat, whether dead or alive, seems more philosophical than a discourse in physics (not a bad thing).

Then you got to the heavy-duty math equations. Being a life-science major in college, math was never my strong suite. So I was pretty much completely lost after you dove into the calculations. I can't say much there.

It's definitely interesting, the way you presented your ideas. However, your audience is going to be people who are already extremely familiar with quantum physics, correct? So is it really necessary to make references to historical background of discoveries and landmark experiments? I don't know. I've never written a dissertation before, but I'm just curious.

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Re: Dissertation
Posted by Myrk- on Wed Mar 16th at 1:48am 2005


Theres quite a few typos! You should fix 'em before you hand it in!

ONLY JOKING!

[addsig]




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Re: Dissertation
Posted by satchmo on Wed Mar 16th at 2:38am 2005


? quoting Myrk-
Theres quite a few typos! You should fix 'em before you hand it in!

ONLY JOKING!

Look who's talking.

[addsig]




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Re: Dissertation
Posted by Crono on Wed Mar 16th at 4:23am 2005


Cool. I haven't gone that high up in the Physics end, but I'm familiar with some of the ideas.

[random comment]
Mmm, TeX

Glad I don't have to write anything like this until I go for a masters. [addsig]




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Re: Dissertation
Posted by Tracer Bullet on Wed Mar 16th at 4:45am 2005


? quoting Myrk-
Theres quite a few typos! You should fix 'em before you hand it in!

ONLY JOKING!

Agreed. I haven't had time for more than the first ten pages yet, but there are a few problems I spotted. Mostly places where you left out a "the" or some such article. Also, as a picky chemist, I'd suggest you substitute the word "particle" for "molecule" in the following sentence:

"...an object made of some very large number of molecules is very unlikely to be seen in a such superposition..."

While this is technically a true statement, I find it misleading because it implies that you are likely to see a superposition in the case of a single molecule, which is not true. Again, this is being very picky, and the math and physics folks probably won't give a damn. However, if a chemistry Prof. takes a look at that, you are going to seem ignorant. It practically jumped off the page at me.

Also, there is a good example of one of your typos in that sentence. Didn't you mean "in such a"?

[addsig]




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Re: Dissertation
Posted by Varsity on Wed Mar 16th at 8:04am 2005


? quote:
Now, since ξ0 is a function of t only, by (145) the ξj are only to first order
in xj :
ξ0 = e(t),
2ξ1 = xe(t) + ?X (t, y, z),
2ξ2 = ye(t) + ? Y (t, x, z),
2ξ3 = ze(t) + ? Z(t, x, y),
AARRRGH!

My suggestion is to add bookmark links to the table of contents. Even if you end up printing it out, they would be nice for any online versions.




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Re: Dissertation
Posted by wil5on on Wed Mar 16th at 8:43am 2005


Looks like a good read, I'm in engineering tho so I wont be going this deep into physics (well, maybe, who knows). Seems like the more maths/physics you do, the more of the greek alphabet you need to know. [addsig]



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Re: Dissertation
Posted by fraggard on Wed Mar 16th at 9:05am 2005







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Re: Dissertation
Posted by Leperous on Wed Mar 16th at 9:55am 2005


Hah, thanks TB. This is my 4th year dissertation, so no it's not a full thesis, it's only a couple of months of work. Glad the rest of you like it

In a nutshell, this is about (objective) gravitationally induced wavefunction collapse! If you know what Schrodinger's cat it, the idea here is that because the cat is quite large, it has a lot of mass and gravity, and so it will collapse to either dead/alive on its own very quickly even while it's still in the box. This process might even explain how consciousness works, via these things called 'microtubules' in the brain. The equations I study are meant to help you choose what the 'basic' states (the deads/alives) are.

And yes the people reading it will be experts in what I'm writing about, and will know the background; but much of this background has not been taught in my course and this has to be "self-contained," so I figure that mentioning these things are a good idea.





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Re: Dissertation
Posted by Orpheus on Wed Mar 16th at 10:16am 2005


displaying knowledge of a topic yet untaught is a good thing, tis "going out on a limb" per say. but always keep in mind that you must not go out so far as to give the impression of cocky and/or overconfidence. IE, people understand that gasoline makes an engine run, but no one cares that the carbon originated in the theoretical "big bang" 4.6 billions years ago.

I have never learned crap of this magnitude, but the topic is unimportant. what is important is to be positive about what you do know, and give the impression that there is no limit to what you would be willing to know next.

people love self confidence, people abhor self centeredness. the problem is, one can resemble the other.

you prolly won't need it but, good luck with this.

/me stops babbling now.





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Re: Dissertation
Posted by Leperous on Wed Mar 16th at 12:14pm 2005


You mean you, as the driver of the buses or just a regular joe, doesn't care about where the carbon came from. I, as a wannabe-physicist, do care, though for anyone to call it "crap" is a pretty stupid attitude (though I don't care if other people don't care about it!). You wouldn't have a computer to type on right now if it wasn't for research in quantum mechanics, and, as I said in the other post, I'm sure cavemen didn't understand the full implications of fire when it was first used.



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Re: Dissertation
Posted by Agent Smith on Wed Mar 16th at 12:26pm 2005


Maths nor science have never been my strong points, so I don't think I'll be able to read it without self destructing. I know what your thinking, without that knowledge I'll never be able to enter Star Fleet Academy and serve aboard the Enterprise, but I've learnt to live with that heart breaking decision.

Congrats Lep, I have major respect for anyone who even attempts something like this, but since you've pulled it off you get extra kudos in my book. Like the pdf by the way, really nicely put together, very professional looking. Thats one area I can comment in and actually know what I'm talking about .
[addsig]




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Re: Dissertation
Posted by satchmo on Wed Mar 16th at 4:50pm 2005


? quote:
I'm sure cavemen didn't understand the full implications of fire when it was first used.

But ultimately, the thirst for knowledge is what distinguishes us from primitive beasts. So I applaud anyone who strives to gain more understanding (including the Grand Unifying Theory).

[addsig]




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Re: Dissertation
Posted by Nickelplate on Wed Mar 16th at 5:04pm 2005


I am actually going to read this. GJ

[addsig]




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Re: Dissertation
Posted by thursday- on Wed Mar 16th at 5:55pm 2005


I will read it by the weekend, I'm doing physics at A-Level at the moment but I've read quite alot of university stuff and managed to just about hang on in there, hopefully I can here too. Good job for being able to finish such a task as this Lep, hope you get the recognition you deserve, and are looking for.
[addsig]





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