Quantum teleportation and computation with Rydberg atoms in an optical lattice

TL;DR

This paper proposes a method for quantum teleportation using Rydberg atoms in an optical lattice, leveraging Rydberg blockade for efficient entanglement and measurement, advancing scalable quantum computation and simulation.

Contribution

It introduces a teleportation scheme with neutral Rydberg atoms that simplifies Bell state measurements without precise Rydberg interaction control.

Findings

Feasible implementation of teleportation with Rydberg atoms

Preparation of entangled states via Rydberg blockade

Potential for scalable quantum computation and simulation

Abstract

Neutral atoms excited to Rydberg states can interact with each other via dipole-dipole interaction, which results in a physical phenomenon named Rydberg blockade mechanism. The effect attracts much attention due to its potential applications in quantum computation and quantum simulation. Quantum teleportation has been the core protocol in quantum information science playing a key role in efficient long-distance quantum communication. Here, we first propose the implementation of teleportation scheme with neutral atoms via Rydberg blockade, in which the entangled states of qubits can readily be prepared and the Bell states measurements just require single qubit operations without precise control of Rydberg interaction. The rapid experimental progress of coherent control of Rydberg excitation, optical trapping techniques and state-selective atomic detection promise the application of the teleportation scheme for scalable quantum computation and many-body quantum simulation using the protocol proposed by D. Gottesman and I. L. Chuang [Nature (London) 402, 390 (1999)] with Rydberg atoms in optical lattice.