article

Dear All I published an article entitled On the Quantum Statistical Distributions Describing Finite Fermions and Bosons Systems and i need to know your opinion.

here is the link

formatting link
org/journal/ PaperInformation .aspx?paperID= 8627

best regards

Reply to
E.K.Elmaghraby
Loading thread data ...

This is a basic group, many here, including myself get a headache reading stuff like that. I did clean up your link though.

formatting link

Tom

Reply to
Tom Biasi

This is a basic teaching group, not a basic research group. However FWIW:

On a quick read, the basic premise of this paper seems to be flawed. You're using higher order terms of the Stirling formula for the factorial in order to calculate the BE and FD statistics of small systems, which is fair enough, even if it isn't new. (Those approximations are fodder for every undergraduate statistical mechanics class.) As you correctly point out, the lowest-order Stirling approximation is appropriate for extensive systems (i.e. where the number of particles is very large).

The conceptual flaw is that you then turn these finite-N results into a lower temperature limit, when temperature itself is only well defined in the large-N limit.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
 Click to see the full signature
Reply to
Phil Hobbs

1) What is about "sci.electronics.basics" that is difficult for you to understand? 2) Is your ego so fragile that you won't post this in a group with "physics" in its name? 3) When writing a post, put something MEANINGFUL on the Subject line

4) Learn how to construct a hyperlink.

5) Proofread your posts before hitting Send.

6) Don't post the same shit multiple times.

Pffff. Yet another clueless Google Grouper.

Reply to
JeffM

You're giving me a headache Doc:-)

Reply to
Tom Biasi

IW:

Thanks, Phil Hobbs, for your positive reply In equilibrium statistical mechanics, temperature is related to the total kinetic energy of the system as well as the number density of the particles whatever the total number of constituting particles. By cooling particles to lower temperature it energy is lowered. So, when we say temperature we mean energy density; this is the trick. On the other hand, the exact derivation is used in the calculation not the higher order approximation of Stirling=92s formula. The later is used only at two specific points n=3D0 and n=3D1, in which it has reasonable values.

Best regards E.K. Elmaghraby

Reply to
E.K.Elmaghraby

tion.aspx?paperID=3D8627

That is correct, Thanks Tom,

Reply to
E.K.Elmaghraby

If you read my response as positive, you must have been getting some pretty nasty ones elsewhere. If I'd been the reviewer, I'd have recommended rejecting it as misconceived and not very original.

Of course you're not entirely alone there--when I was a graduate student, I once had to withdraw a paper on imaging theory when I discovered that the main result had been published in the 1880s by Lord Rayleigh!

(One of my less merciful colleagues asked me, "So, Phil, how does it feel to be in the forefront of 19th Century science?")

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal Consultant
 Click to see the full signature
Reply to
Phil Hobbs

FWIW:

s
a

in

Thanks Phil, But what you read was not published before, no one menstiened about it before. Your reply was positive because it discuses it scientifically. Now, your reply does not contain science at all. Because, if you read more, you can find that the recent results of cooled fermions-bosons mixture is the new hot topic in physics. I would direct you to some lectures, if you want to read:

Science 2011 Oct 07, page 66-68 Nature, Vol 435 - 23 June 2005 doi:10.1038/nature03858, page 1047-1051 Science 285, 1703 (1999); SCIENCE VOL 285, 10 SEPTEMBER 1999 pages 1703 =96 NATURE, 26 NOVEMBER 2003, page 1 Science 30 MARCH 2001 VOL 291 pages 2570-72 SCIENCE VOL 300 13 JUNE 2003 pages 13-16 Phys. rev. lett. 91 , 160401 (2003) New Journal of Physics 12 (2010) 063038 PHYSICAL REVIEW C, VOLUME 62, 064603 PRL 104, 053202 (2010) J. Phys. Chem. B 2007, 111, 8946-8958 Physics Letters A 342 (2005) 286=96293 Physics Letters A 374 (2010) 4581=964584 Journal of Low Temperature Physics, Vol. 132, Nos. 3/4, August 2003 J Low Temp Phys (2009) 154: 1=9629 Optics Communications 264 (2006) 321=96325 Physica A 357 (2005) 427=96435 Physics Letters A 363 (2007) 487=96491 Physics Letters A 326 (2004) 252=96258 Physics Letters A 373 (2009) 2471=962475 Physica A 354 (2005) 371=96380 Physics Letters A 372 (2008) 2048=962049 Theoretical and Mathematical Physics, 154(1): 123=96136 (2008) Physics Letters A 375 (2011) 2979=962984 Annals of Physics 323 (2008) 2987=962990 Physica C 470 (2010) S982=96S983 Optics Communications 243 (2004) 3=9622 Nuclear Physics B 846 [FS] (2011) 122=96136 Nuclear Physics A 830 (2009) 665c=96672c Physics Reports 464 (2008) 71=96111

I am tired now can I complete later. =85.

Reply to
E.K.Elmaghraby

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.