Experimental preparation of eight-partite linear and two-diamond shape cluster states for photonic qumodes

TL;DR

This paper reports the first experimental creation of eight-partite continuous-variable entangled states in photonic qumodes, demonstrating a significant step toward advanced quantum information processing.

Contribution

It introduces the first experimental realization of eight-partite spatially separated CV entangled states using linear optics and squeezed light.

Findings

Successfully prepared two types of eight-partite cluster states.

Achieved spatial separation of entangled photonic qumodes.

Provided quantum resources for complex quantum information tasks.

Abstract

The preparation of multipartite entangled states is the prerequisite for exploring quantum information networks and quantum computation. In this letter, we present the first experimental demonstration of eight-partite spatially separated CV entangled states. The initial resource quantum states are eight squeezed states of light, through the linearly optical transformation of which two types of the eight-partite cluster entangled states are prepared, respectively. The generated eight entangled photonic qumodes are spatially separated, which provide valuable quantum resources to implement more complicated quantum information task.