PI-UIUC 2013

PI-UIUC Joint Workshop On Strongly Correlated Quantum Many-Body Systems

 

Thursday Nov 07, 2013

Electrons moving in a periodic electric potential form Bloch energy
bands where the mass of electrons are effectively changed. In a strong
magnetic field, the cyclotron orbits of free electrons are quantized and
Landau levels forms with a massive degeneracy within. In 1976,
Hofstadter showed that for 2-dimensional electronic system, the
intriguing interplay between these two quantization effects can lead
into a self-similar fractal set of energy spectrum known as
“Hofstadter’s Butterfly.” Experimental efforts to demonstrate this

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