Dephasing-Controlled Particle Transport Devices

TL;DR

This paper investigates how dephasing influences quantum particle transport, demonstrating that it can control transport direction and rectification, enabling the design of molecular devices with novel functionalities that leverage dephasing as a control parameter.

Contribution

It introduces a new approach to controlling quantum transport using dephasing, challenging classical circuit laws and proposing molecular devices with tunable functionalities.

Findings

Dephasing can reverse particle transport direction.

Interference effects invalidate Kirchhoff's laws in quantum devices.

Dephasing enables control over rectification in transport circuits.

Abstract

We study the role of dephasing in transport through different structures. We show that interference effects invalidate Kirchhoff's circuit laws in quantum devices. We present circuits where the particle transport and the direction of rectification can be controlled through the dephasing strength. This suggests the possibility of constructing molecular devices with new functionalities which use dephasing as a control parameter.