Molecular nanomagnets as quantum simulators

TL;DR

This paper explores how molecular nanomagnets can serve as quantum simulators, enabling the emulation of complex quantum systems through controlled dynamics of molecular qubits and proposed experiments.

Contribution

It introduces a theoretical framework for controlling molecular qubit chains with magnetic pulses to simulate various quantum systems, including fermionic models.

Findings

Controlled dynamics of molecular qubits can mimic other quantum systems.

Proposed experiments demonstrate potential for simulating the Ising model and quantum tunneling.

Molecular nanomagnets are viable platforms for quantum simulation.

Abstract

Quantum simulators are controllable systems that can be used to simulate other quantum systems. Here we focus on the dynamics of a chain of molecular qubits with interposed antiferromagnetic dimers. We theoretically show that its dynamics can be controlled by means of uniform magnetic pulses and used to mimic the evolution of other quantum systems, including fermionic ones. We propose two proof-of-principle experiments, based on the simulation of the Ising model in transverse field and of the quantum tunneling of the magnetization in a spin-1 system.