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</o:shapelayout></xml><![endif]--></head><body lang=SL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Vabimo vas na 12. predavanje iz sklopa "Kolokviji na IJS" v letu 2012/13, ki bo <strong><span style='color:red'>v četrtek, 21. marca 2013, ob 13. uri </span></strong><span style='color:red'>v Veliki predavalnici Instituta »Jožef Stefan«</span> na Jamovi cesti 39 v Ljubljani. Napovednik predavanja najdete tudi na naslovu <a href="http://www.ijs.si/ijsw/Koledar_prireditev">http://www.ijs.si/ijsw/Koledar_prireditev</a>, posnetke preteklih predavanj<span style='color:blue'> </span>pa na <a href="http://videolectures.net/kolokviji_ijs">http://videolectures.net/kolokviji_ijs</a>. <o:p></o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<o:p></o:p></p><p class=MsoNormal align=center style='text-align:center'><b><i><o:p> </o:p></i></b></p><p class=MsoNormal align=center style='text-align:center'><b><i><o:p> </o:p></i></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:14.0pt'>prof. dr. Janez Bonča <o:p></o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><i>Fakulteta za matematiko in fiziko, Univerza v Ljubljani<o:p></o:p></i></p><p class=MsoNormal align=center style='text-align:center'><i>Institut Jožef Stefan<o:p></o:p></i></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='text-align:center'><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:center'><b><span style='font-size:14.0pt'>Neravnovesna dinamika koreliranih sistemov<o:p></o:p></span></b></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:center'>Za korelirane sisteme več teles so značilna različna kolektivna osnovna stanja, med katerimi so najbolj pogosta Mottov izolator, superprevodno stanje ter magnetno urejeno osnovno stanje. V zadnjem času postaja vsled napredka časovno odvisnih eksperimentalnih metod izjemno aktualno vprašanje vedenja koreliranih sistemov po tem, ko jih s pomočjo zunanjega električnega polja vzbudimo daleč izven ravnovesja. Predstavili bomo fundamentalno študijo ene in dveh vrzeli v enem od tipskih modelov koreliranih elektronov, ki se nahajajo pod vplivom zunanjega električnega polja. Pokazali bomo, da je mogoče v okviru numerično točnega kvantnomehanskega računa določiti stacionarni tok nosilca naboja, ki je sklopljen z različnimi neelastičnimi prostostnimi stopnjami, kot so spinski valovi oziroma mrežna nihanja. Nadalje bomo obravnavali par nosilcev naboja, ki je vezan vsled izmenjave spinskih ekscitacij. Pod vplivom zunanjega električnega polja tak par razpade. Na koncu bomo obravnavali tudi relaksacijo koreliranega sistema po vzbuditvi s kratkim električnim pulzom.<o:p></o:p></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:center'><o:p> </o:p></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:center'>Predavanje bo v slovenščini.<o:p></o:p></p><p class=MsoNormal align=center style='mso-margin-top-alt:auto;margin-bottom:12.0pt;text-align:center'><strong><span style='color:red'>Lepo vabljeni!</span></strong><strong><span style='font-weight:normal'><o:p></o:p></span></strong></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p></div></body></html>