Coulomb Drag between One-Dimensional Wigner Crystal Rings

Abstract

We consider the Coulomb drag between two metal rings in which the long range Coulomb interaction leads to the formation of a Wigner crystal. The first ring is threaded by an Ahranov Bohm flux creating a persistent current J_0. The second ring is brought in close proximity to the second and due to the Coulomb interaction between the two rings a drag current J_D is produced in the second. We investigate this system at zero temperature for perfect rings as well as the effects of impurities. We show that the Wigner crystal state can in principle lead to a higher ratio of drag current to drive current J_D/J_0 than in weakly interacting electron systems.

12 pages, 10 figures

References in corpus (5)

• Coulomb Drag in the Extreme Quantum Limit
• Unscreened Coulomb repulsion in the one dimensional electron gas
• Coulomb Drag Between Parallel Ballistic Quantum Wires
• Effects of Coulomb interaction and tunneling on electron transport in coupled one-dimensional systems: from ballistic to diffusive regime
• Non-Ohmic Coulomb drag in the ballistic electron transport regime

Cited by in corpus (4)

• Positive and Negative Drag, Dynamic Phases, and Commensurability in Coupled One-Dimensional Channels of Particles with Yukawa Interactions
• Colloidal Lattice Shearing and Rupturing with a Driven Line of Particles
• Dynamically Induced Locking and Unlocking Transitions in Driven Layered Systems with Quenched Disorder
• The Effect of Pinning on Drag in Coupled One-Dimensional Channels of Particles