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        Date:

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 Thursday, 03. Oct. 2013

Low resolution for MediaPlayer (Windows),

 optimized for slow network-connection:

 

       -   Video.wmv

 

 Low  resolutions for MAC:

 

       -   Video.mov

 

 High resolutions video (any system with MP4-support):

 

       -   Video.mp4

 

 15:15 – 16:15

 

Abstract

 

The phase transitions and superconductivity are the two summits of physics which were conquered in the second part

of the twentieth century. They are connected by the mountain-range, which is called superconducting fluctuations.

My lecture will be devoted to discussion of the latter.

 

I will start from recalling of some facts of the history of superconductivity and then concentrate on the novel superconductors,

where fluctuations play an important role. I will discuss their wave nature close to critical temperature remaining in the

framework of Ginzburg-Landau ideas, using only the Heisenberg principle, and handwaving to obtain the necessary evaluations.

Then, moving along the line, separating superconducting and normal phase in the phase diagram “temperature-magnetic field”,

I will approach the point of quantum phase transition at zero temperature and will show how the waves break in vortices

and the Abrikosov’s lattice is formed.

 

 

Finally I will show several impressive manifestations of superconducting fluctuations in physical properties of superconductors

and will explain how they can be used in order to investigate the modern superconducting systems.

 

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