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Helical Edge Modes near Transition to Topological Insulator with Indirect Gap
topological insulator edge mode indirect gap particle-hole symmetry semimetal annihilator
2010/11/19
Helical edge modes are characteristic of topological insulators in two dimensions. This paper
demonstrates that helical edge modes remain across transitions to ordinary insulators or to semimetals un...
The Prediction of a Gapless Topological "Haldane Liquid" Phase in a One-Dimensional Cold Polar Molecular Lattice
Prediction of a Gapless One-Dimensional Cold Polar Molecular Lattice
2010/11/19
We show that ultracold two-component fermionic dipolar gases in an optical lattice with strong
two-body on-site loss can be used to realize a tunable effective spin-one model.
Full electrical control of Charge and Spin conductance through Interferometry of Edge States in Topological Insulators
Full electrical control of Charge Spin conductance Topological Insulators
2010/11/24
We investigate electron interferometry of edge states in Topological Insulators. We show that,
when inter-boundary coupling is induced at two quantum point contacts of a four terminal setup,
both Fa...
Electron interaction-driven insulating ground state in Bi2Se3 topological insulators in the two dimensional limit
Electron interaction-driven two dimensional limit
2010/11/18
We report a transport study of ultrathin Bi2Se3 topological insulators with thickness from
one quintuple layer to six quintuple layers grown by molecular beam epitaxy. At low
temperatures, the film ...