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bote

could you let me know

where you get description below?

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11Â¥2009-09-25 14:52:30
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redskywei

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12Â¥2009-09-25 17:38:29
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just_play

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So Trivial !
13Â¥2009-09-25 22:50:40
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pxjiushun100

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by bote at 2009-9-25 14:43:



for position it is a delta function

only for momentum, it is a plane wave.

But you can think on the contrary way.  For position is a plane wave, and for momentum, it is a delta function.
14Â¥2009-09-26 02:30:16
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pxjiushun100

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by bote at 2009-9-25 14:52:
where you get description below?

ÔÚʵ¼ÊµÄ¹ÌÌåÀïÃæ£¬ÓÉÓÚ²»È·¶¨Ô­ÀíºÍpauli²»ÏàÈÝÔ­Àí£¬ÓÈÆäÑôÀë×ÓµÄÊø¸¿ÊƵÄ×÷Óã¬ÔÚ¾ø¶ÔÁã¶ÈÏ£¬µç×ÓΠ...

[/quote]

This is Fermi-Dirac distribution. And this why pertubation theory of room temperature in condensed matter physics is a good approximation.

T is measurement of entropy S (or change of S with the change of E). If electrons are bond in cations, they are not quite ordered. But for the whole system, not just considering electrons, the temperature is low.

[ Last edited by pxjiushun100 on 2009-9-26 at 03:36 ]
15Â¥2009-09-26 02:52:03
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pxjiushun100

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by redskywei at 2009-9-25 17:38:
¾ø¶ÔÁã¶ÈÊǺê¹ÛµÄ¸ÅÄ²»ÊʺÏÄõ½Î¢¹ÛÊÀ½çÖÐͳ¼ÆÆ½¾ù¶øÀ´£¬µç×ÓµÄζÈÐèÒª´ÓÄÜÁ¿½Ç¶ÈºâÁ¿µÄѽ¡£

ÓеÀÀí, ËÆºõµ½quantum level TµÄ¸ÅÄî¾Í²»ÊǺÜÇåÎúÁË¡£×÷Ϊһ¸öͳ¼Æ¶¨Ò壬¸ù¾Ý1/T=dS/dE ´ó¼Ò×Ô¼ºÀí½â

[ Last edited by pxjiushun100 on 2009-9-26 at 03:28 ]
16Â¥2009-09-26 02:54:05
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pxjiushun100

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by just_play at 2009-9-25 22:50:
Çë²Î¿¼ìصÄͳ¼Æ¶¨Òå
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ÓеÀÀí, ËÆºõµ½quantum level TµÄ¸ÅÄî¾Í²»ÊǺÜÇåÎúÁË¡£×÷Ϊһ¸öͳ¼Æ¶¨Ò壬¸ù¾Ý1/T=dS/dE ´ó¼Ò×Ô¼ºÀí½â£¬ÓÈÆäS=0µÄ³¬Á÷£¬³¬µ¼ÏµÍ³¡£¶ø¾ø¶ÔÁã¶È´ï²»µ½ÊÇÒòΪ£¬ÏÖʵÖв»¿ÉÄÜÓÖÒ»¸öÍêÈ«µÄadiabatic system¡£¼´Ê¹ÓУ¬ÔÚÒ»¸öÓÐÏÞζȵÄÇé¿öÏ£¬Ò²²»¿ÉÄÜ´ïµ½¾ø¶ÔÁã¶È¡£

[ Last edited by pxjiushun100 on 2009-9-26 at 03:46 ]
17Â¥2009-09-26 03:44:37
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bote

ÒýÓûØÌû:
Originally posted by pxjiushun100 at 2009-9-26 02:52:

This is Fermi-Dirac distribution. And this why pertubation theory of room temperature in condensed matter physics is a good approximation.

T is measurement of entropy S (or change o ... [/quote]

ÏëÒªÖªµÀµÄÊÇ"¾ø¶ÔÁã¶Èʱ£¬µç×ÓζȿɴïÉÏÍòkelvin"µÄ³ö´¦¡£.
18Â¥2009-09-26 04:57:14
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bote

ÒýÓûØÌû:
Originally posted by pxjiushun100 at 2009-9-26 02:52:

This is Fermi-Dirac distribution. And this why pertubation theory of room temperature in condensed matter physics is a good approximation.

T is measurement of entropy S (or change o ... [/quote]

ζÈÊÇÒ»¸ö¶¨ÒåÁ¿£¬ìØÊÇÒ»µ¼³öÁ¿¡£²»ÄÜÓÃT=dQ/dS×÷ΪËüµÄ¶¨Òå (Q ϵͳÎüÊÕµÄÈÈlÁ¿;S;ϵͳµÄìØ£©
19Â¥2009-09-26 05:40:16
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bote

ÒýÓûØÌû:
Originally posted by pxjiushun100 at 2009-9-26 02:30:


But you can think on the contrary way.  For position is a plane wave, and for momentum, it is a delta function.

ÄãÔÚ¶¯Á¿¿Õ¼ä¿ÉÒÔÕâô˵¡£ÔÚλÖÿռä,²»³É.
20Â¥2009-09-26 05:49:49
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