David Dean (LOMA, Université de Bordeaux)

Non-monotonic Casimir forces

In this talk I will discuss two examples of systems where thermal or quantum fluctuations lead to fluctuation induced forces which have a non-monotonic behavior that can lead to strong metastability. The first example corresponds to a field theory with higher derivative interactions (examples arise in non-local electrostatics and polymer physics). The second comes from free fermionic systems in the presence of impurities. Despite corresponding to drastically different physics, the two examples show remarkably similar Casimir force phenomenology.

En version hybride en personne dans la salle de séminaire habituelle (couloir 12-13, 5ème, salle 5-23) et en visioconférence par zoom
https://us06web.zoom.us/j/89465455986?pwd=cDVTVjAvclNzNlIzNDdpaUhoU1Vhdz09
Meeting ID: 894 6545 5986
Passcode: 355776