Arxiv:1801.07497V2 [Cond-Mat.Mes-Hall] 1 Feb 2018 VI
Coherent control of single electrons: a review of current progress Christopher B¨auerle,1 D. Christian Glattli,2 Tristan Meunier,1 Fabien Portier,2 Patrice Roche,2 Preden Roulleau,2 Shintaro Takada,1, 3 and Xavier Waintal4 1Univ. Grenoble Alpes, CNRS, Grenoble INP, Institut N´eel,38000 Grenoble, France 2Service de Physique de l' Etat´ Condens´e(CNRS UMR 3680), IRAMIS, CEA-Saclay, F-91191 Gif-Sur-Yvette, France 3National Institute of Advanced Industrial Science and Technology (AIST), National Metrology Institute of Japan (NMIJ), Tsukuba, Ibaraki 305?8563, Japan 4Univ. Grenoble Alpes, INAC-PHELIQS, F-38000 Grenoble, France (Dated: February 2, 2018) CONTENTS VIII. Outlook and future developments 26 I. Introduction: 1 References 28 II. Basic theoretical concepts for flying qubit architectures with single electrons 2 1. Single-qubit operations 2 2. Two-qubit operations 3 III. Low-frequency transport in quantum coherent circuits 5 A. Mach{Zehnder interferometry in the quantum Hall regime 5 1. The electronic Mach{Zehnder Abstract interferometer 5 In this report we review the present state of the art of 2. The two-electron Mach{Zehnder the control of propagating quantum states at the single- interferometer 7 electron level and its potential application to quantum B. Mach{Zehnder interferometry at low information processing. We give an overview of the differ- magnetic fields (AB ring with ent approaches which have been developed over the last tunnel-coupled wires) 8 ten years in order to gain full control over a propagating single electron in a solid state system. After a brief intro- IV. Single Electron Sources 11 duction of the basic concepts, we present experiments on A.
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