Ultra-fast two-qubit ion gate using sequences of resonant pulses

TL;DR

This paper introduces a rapid two-qubit ion gate protocol using resonant pulse sequences, significantly reducing gate times below the trap oscillation period to enhance quantum computing scalability.

Contribution

It presents a novel method for ultra-fast ion gates by optimizing pulse timing, enabling faster quantum operations than previous techniques.

Findings

Gate times are faster than the trap oscillation period

Increased number of operations within coherence time

Potential for scalable quantum computing

Abstract

We propose a new protocol to implement ultra-fast two-qubit phase gates with trapped ions using spin-dependent kicks induced by resonant transitions. By only optimizing the allocation of the arrival times in a pulse train sequence the gate is implemented in times faster than the trapping oscillation period $T<2\pi/\omega$. Such gates allow us to increase the number of gate operations that can be completed within the coherence time of the ion-qubits favoring the development of scalable quantum computers.