Perfect coherent transfer in an on-chip reconfigurable nanoelectromechanical network

TL;DR

This paper demonstrates an on-chip nanoelectromechanical network capable of perfect coherent transfer using reconfigurable couplings, enabling advanced control over wave propagation and potential applications in topological transport and metamaterials.

Contribution

It introduces a reconfigurable nanoelectromechanical network with both NN and NNN couplings, enabling perfect coherent transfer and complex coupling engineering.

Findings

Achieved perfect coherent transfer in NN and NNN coupled arrays.

Demonstrated parity-dependent phase relations at transmission cycles.

Showcased the platform's potential for studying topological and collective phenomena.

Abstract

Realizing a controllable network with multiple degrees of interaction is a challenge to physics and engineering. Here, we experimentally report an on-chip reconfigurable network based on nanoelectromechanical resonators with nearest-neighbor (NN) and next-nearest-neighbor (NNN) strong couplings. By applying different parametric voltages on the same on-chip device, we carry out perfect coherent transfer in NN and NNN coupled array networks. Moreover, the low-loss resonators ensure the desired evolution to achieve perfect transfer and the demonstration of the parity-dependent phase relation at transmission cycles. The realization of NNN couplings demonstrates the capability of engineering coherent coupling beyond a simple model of a NN coupled array of doubly clamped resonators. Our reconfigurable nanoelectromechanical network provides a highly tunable physical platform and offers the possibilities of investigating various interesting phenomena, such as topological transport, synchronization of networks, as well as metamaterials.