Sculpting bosonic states with arithmetic subtractions

TL;DR

This paper proposes a probabilistic boson sculpting scheme for creating multipartite entangled states in trapped ion systems, advancing continuous-variable quantum computing with realistic noise considerations.

Contribution

It introduces a novel boson sculpting method tailored for trapped ions, enabling efficient generation of multipartite CV entangled states.

Findings

The scheme successfully generates multipartite entanglement.

Numerical simulations show robustness against realistic decoherence.

The approach advances CV quantum state engineering in ion traps.

Abstract

Continuous-variable (CV) encoding allows information to be processed compactly and efficiently on quantum processors. Recently developed techniques such as controlled beam-splitter operations and the near deterministic phonon subtractions make trapped ion systems attractive for exploring CV quantum computing. Here we propose a probabilistic scheme based on the boson sculpting technique for generating multipartite highly entangled states of motional modes of trapped ion systems. We also investigate the effects of decoherence on the fidelity of the generated state by performing numerical simulations with realistic noise parameters. Our work is a step towards generating multipartite continuous-variable entanglement.