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Superconductivity is the transmission of current with no resistive losses, and is one of the most active areas of condensed matter physics research.

2 votes
1 answer
336 views

Tight-binding extended attractive Hubbard model for unconventional superconductivity

BCS theory suggest that the effective attraction between two electrons, due to electron-phonon coupling, is in momentum ($k-$)space. However, in literature, (real space) tight-binding Hubbard model wi …
2 votes
0 answers
119 views

What is 'Peak effect' in superconductivity?

I came across a phenomenon in type II superconductors called the "peak effect." To be a little more specific, it has something to do with delocalised vortices. I don't really know what is it all about …
3 votes

Cooper pairs by electron-gravity interaction?

The positive potential requirement mentioned above refers to the 'net' potential after inclusion of the repulsive potential term due to electric forces. Sure gravitational force offers an attractive p …
Navketan Batra's user avatar