why FQHE needs a lower energy state with gaped specrum

by knightq
Tags: fqhe
knightq is offline
Mar12-13, 07:38 PM
P: 23
Hi, everyone. I have read some materials about fractional quantum hall effect,especially about Laughlin's wavefunction. However a lot of them claim Laughlin's wave function have lower energy and a gap in spectrum but seldom explain why that could explain the plateau. Also from my observation, it's not like phase transition, which was the first thing across my mind when I see "lower energy", since the energy at v=1/3 is lower than energy at different filling factors not, the energy of a "normal state" at the same v=1/3.
If anyone is a expert in this field , could you explain to me why a lower energy state at v=1/3 with gaped spectrum could explain the plateau? Thanks
Phys.Org News Partner Physics news on Phys.org
Chameleon crystals could enable active camouflage (w/ video)
Atomic switcheroo explains origins of thin-film solar cell mystery
X-ray laser experiment explores how specially shocked material gets stronger

Register to reply

Related Discussions
Tendency to drop down to a lower energy state. General Physics 2
The desire of atoms for a lower energy state General Physics 5
Electrons settling into a lower energy state: How long does the light stay on for? Quantum Physics 5
Moving to a lower state General Physics 3
What is the lower-state lifetime for CO2 laser's 10.6 um transition? Advanced Physics Homework 0