Accelerated quantum adiabatic transfer in superconducting qubits

TL;DR

This paper introduces a fast, robust, and high-fidelity quantum adiabatic transfer method in superconducting qubits, overcoming traditional speed limitations and enhancing quantum state manipulation capabilities.

Contribution

It presents a novel protocol for accelerated quantum adiabatic transfer along geodesics in superconducting transmons, improving speed and robustness over conventional methods.

Findings

Achieved faster quantum state transfer along geodesics.

Demonstrated high fidelity in one- and two-qubit systems.

Enhanced robustness against decoherence effects.

Abstract

Quantum adiabatic transfer is widely used in quantum computation and quantum simulation. However, the transfer speed is limited by the quantum adiabatic approximation condition, which hinders its application in quantum systems with a short decoherence time. Here we demonstrate quantum adiabatic state transfers that jump along geodesics in one-qubit and two-qubit superconducting transmons. This approach possesses the advantages of speed, robustness, and high fidelity compared with the usual adiabatic process. Our protocol provides feasible strategies for improving state manipulation and gate operation in superconducting quantum circuits.