Resonant Adiabatic Passage with Three Qubits

TL;DR

This paper demonstrates a resonant, non-adiabatic quantum teleportation protocol with three qubits that achieves perfect fidelity, offering a fast and robust method for quantum state transfer and high-precision gates.

Contribution

It introduces a novel non-adiabatic approach to quantum teleportation using resonance, with a detailed physical explanation and potential applications in quantum computing.

Findings

Achieves perfect fidelity through resonance in non-adiabatic teleportation.

Maps three-qubit dynamics onto two coherent adiabatic channels.

Provides a physical analogy with magnetic resonance for understanding the process.

Abstract

We investigate the non-adiabatic implementation of an adiabatic quantum teleportation protocol, finding that perfect fidelity can be achieved through resonance. We clarify the physical mechanisms of teleportation, for three qubits, by mapping their dynamics onto two parallel and mutually-coherent adiabatic passage channels. By transforming into the adiabatic frame, we explain the resonance by analogy with the magnetic resonance of a spin-1/2 particle. Our results establish a fast and robust method for transferring quantum states, and suggest an alternative route toward high precision quantum gates.