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Doping the Kane-Mele-Hubbard model: A Slave-Boson Approach
Jun Wen, Mehdi Kargarian, Abolhassan Vaezi +1
We study the Kane-Mele-Hubbard model both at half-filling and away from half-filling using a slave-boson mean-field approach at zero temperature. We obtain a phase diagram at half-…
Topological Insulators and Quantum Spin Liquids
Gregory A. Fiete, Victor Chua, Mehdi Kargarian +4
In this paper we review some connections recently discovered between topological insulators and certain classes of quantum spin liquids, focusing on two and three spatial dimension…
Topological insulators and fractional quantum Hall effect on the ruby lattice
Xiang Hu, Mehdi Kargarian, Gregory A. Fiete
We study a tight-binding model on the two-dimensional ruby lattice. This lattice supports several types of first and second neighbor spin-dependent hopping parameters in an -ban…
Implementation of Single-qubit and CNOT Gates by Anyonic Excitations of Two-body Topological Color Code
Mehdi Kargarian
The anyonic excitations of topological two-body color code model are used to implement a set of gates. Because of two-body interactions, the model can be simulated in optical latti…
Competing Exotic Topological Insulator Phases in Transition Metal Oxides on the Pyrochlore Lattice with Distortion
Mehdi Kargarian, Jun Wen, Gregory A. Fiete
In this work we investigate the phase diagram of heavy (4d and 5d) transition metal oxides on the pyrochlore lattice, such as those of the form , where A is a r…