Quantum and Classical Dissipative Effects on Tunnelling in Quantum Hall Bilayers

TL;DR

This paper explores how quantum and classical dissipative effects influence tunneling in quantum Hall bilayers, revealing quantum effects that cause tunneling currents and damping oscillations, rooted in classical spin resonances.

Contribution

It demonstrates the significance of quantum effects in tunneling and dissipation in quantum Hall bilayers, linking quantum phenomena to classical spin resonances.

Findings

Quantum effects induce tunneling currents.

Quantum dissipation dampens oscillations.

Resonances in classical spin systems underlie quantum effects.

Abstract

We discuss the interplay between transport and dissipation in quantum Hall bilayers. We show that quantum effects are relevant in the pseudospin picture of these systems, leading either to direct tunnelling currents or to quantum dissipative processes that damp oscillations around the ground state. These quantum effects have their origins in resonances of the classical spin system.