Universal quantum computation and quantum error correction with ultracold atomic mixtures

Bibliographic description

punktacja MEiN [2022]: 70

title:	Universal quantum computation and quantum error correction with ultracold atomic mixtures
author:	Kasper Valentin, González-Cuadra Daniel, Hegde Apoorva, Xia Andy, Dauphin Alexandre, Huber Felix , Tiemann Eberhard, Lewenstein Maciej, Jendrzejewski Fred, Hauke Philipp
journal title:	Quantum Science and Technology
volume:	7
issue:	1
date of publication :	2022
article ID:	015008
eISSN:	2058-9565
DOI:	10.1088/2058-9565/ac2d39
language:	English
journal language:	English
abstract in English:	Quantum information platforms made great progress in the control of many-body entanglement and the implementation of quantum error correction, but it remains a challenge to realize both in the same setup. Here, we propose a mixture of two ultracold atomic species as a platform for universal quantum computation with long-range entangling gates, while providing a natural candidate for quantum error-correction. In this proposed setup, one atomic species realizes localized collective spins of tunable length, which form the fundamental unit of information. The second atomic species yields phononic excitations, which are used to entangle collective spins. Finally, we discuss a finite-dimensional version of the Gottesman–Kitaev–Preskill code to protect quantum information encoded in the collective spins, opening up the possibility to universal fault-tolerant quantum computation in ultracold atom systems.
type:	journal article
subtype:	academic paper