Non-adiabatic generation of NOON states in a Tonks–Girardeau gas ☆Dedicated to the memory of Marvin D Girardeau. (22nd March 2016)

• Record Type: Journal Article
• Authors: Schloss, James; Benseny, Albert; Gillet, Jérémie; Swain, Jacob; Busch, Thomas
• Is Part Of: New journal of physics. Volume 18:Number 3(2016:Mar.)
• Publication Date: 2016-03-22
• Subjects: NOON states -- optimal control -- quantum engineering -- strongly correlated quantum states -- shortcuts to adiabaticity -- Tonks–Girardeau gas; 03.67.-a -- 03.67.Bg -- 42.50.Dv; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/18/3/035012
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: Adiabatic techniques can be used to control quantum states with high fidelity while exercising limited control over the parameters of a system. However, because these techniques are slow compared to other timescales in the system, they are usually not suitable for creating highly unstable states or performing time-critical processes. Both of these situations arise in quantum information processing, where entangled states may be isolated from the environment only for a short time and where quantum computers require high-fidelity operations to be performed quickly. Recently it has been shown that techniques like optimal control and shortcuts to adiabaticity can be used to prepare quantum states non-adiabatically with high fidelity. Here we present two examples of how these techniques can be used to create maximally entangled many-body NOON states in one-dimensional Tonks–Girardeau gases.