Physics – Condensed Matter
Scientific paper
2001-10-27
Science 294:823,2001
Physics
Condensed Matter
Scientific paper
10.1126/science.294.5543.823
We construct a generalization of the quantum Hall effect, where particles move in four dimensional space under a SU(2) gauge field. This system has a macroscopic number of degenerate single particle states. At appropriate integer or fractional filling fractions the system forms an incompressible quantum liquid. Gapped elementary excitations in the bulk interior and gapless elementary excitations at the boundary are investigated.
Hu Jiangping
Zhang Shou-Cheng
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