178 citations · 1.1k across the 73 of their papers we have counts for
4 papers · 1 filter
Measuring geometric phases of scattering states in nanoscale electronic devices
Huan-Qiang Zhou, Urban Lundin, Sam Young Cho +1
We show how a new quantum property, a geometric phase, associated with scattering states can be exhibited in nanoscale electronic devices. We propose an experiment to use interfere…
Phase diagram and symmetry breaking of SU(4) spin-orbital chain in a generalized external field
Shi-Jian Gu, You-Quan Li, Huan-Qiang Zhou
The ground state phases of a one-dimensional SU(4) spin-orbital Hamiltonian in a generalized external field are studied on the basis of Bethe-ansatz solution. Introducing three Lan…
Gauge Fields, Geometric Phases, and Quantum Adiabatic Pumps
Huan-Qiang Zhou, Sam Young Cho, Ross H. McKenzie
Quantum adiabatic pumping of charge and spin between two reservoirs (leads) has recently been demonstrated in nanoscale electronic devices. Pumping occurs when two or more system p…
Quantum Transport and Integrability of the Anderson Model for a Quantum Dot with Multiple Leads
Sam Young Cho, Huan-Qiang Zhou, Ross H. McKenzie
We show that an Anderson Hamiltonian describing a quantum dot connected to multiple leads is integrable. A general expression for the non-linear conductance is obtained by combinin…