Ultra-fast two-qubit ion gate using sequences of resonant pulses. (12th October 2020)

• Record Type: Journal Article
• Authors: Torrontegui, E; Heinrich, D; Hussain, M I; Blatt, R; García-Ripoll, J J
• Is Part Of: New journal of physics. Volume 22:Number 10(2020:Oct.)
• Publication Date: 2020-10-12
• Subjects: quantum information -- trapped ions -- qubit gates; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/abbab6
• Languages: English
• ISSNs: 1367-2630

Abstract

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 π / ω . 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.