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Universal entanglement entropy in 2D conformal quantum critical points
Benjamin Hsu, Michael Mulligan, Eduardo Fradkin +1
We study the scaling behavior of the entanglement entropy of two dimensional conformal quantum critical systems, i.e. systems with scale invariant wave functions. They include two-…
Interference of nematic quantum critical quasiparticles: a route to the octet model
Eun-Ah Kim, Michael J. Lawler
Repeated observations of inhomogeneity in cuperate superconductors[1-5] make one immediately question the existance of coherent quasiparticles(qp's) and the applicability of a mome…
Li non-stoichiometry and crystal growth of untwinned 1D quantum spin system Lix Cu2 O2
H. C. Hsu, H. L. Liu, F. C. Chou
Floating-zone growth of untwinned single crystal of Li_xCu_2O_2 with high Li content of x ~ 0.99 is reported. Li content of Li_xCu_2O_2 has been determined accurately through combi…
Corner Junction as a Probe of Helical Edge States
Chang-Yu Hou, Eun-Ah Kim, Claudio Chamon
We propose and analyze inter-edge tunneling in a quantum spin Hall corner junction as a means to probe the helical nature of the edge states. We show that electron-electron interac…