Interfaces between light and matter for quantum information processing

Quantum communication and quantum computation are anticipated quantum technologies which enable us to tackle problems which are hard or even impossible to solve by classical means. A major challenge in implementing real life applications for quantum communication and quantum computation is to implem...

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Main Author: Trautmann, Nils
Format: Others
Language:en
Published: TUprintd 2017
Online Access:https://tuprints.ulb.tu-darmstadt.de/6004/1/Dissertation.pdf
Trautmann, Nils <http://tuprints.ulb.tu-darmstadt.de/view/person/Trautmann=3ANils=3A=3A.html> (2017): Interfaces between light and matter for quantum information processing.Darmstadt, TUprintd, Technische Universität Darmstadt, [Ph.D. Thesis]
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spelling ndltd-tu-darmstadt.de-oai-tuprints.ulb.tu-darmstadt.de-60042020-07-15T07:09:31Z http://tuprints.ulb.tu-darmstadt.de/6004/ Interfaces between light and matter for quantum information processing Trautmann, Nils Quantum communication and quantum computation are anticipated quantum technologies which enable us to tackle problems which are hard or even impossible to solve by classical means. A major challenge in implementing real life applications for quantum communication and quantum computation is to implement efficient interfaces between different kinds of quantum systems which serve as carriers of quantum information, such as single photons and single material quantum systems (i.e. atoms, ions ...). These different kinds of quantum systems have different advantages and disadvantages if it comes to practical applications. Single photons, which may serve as flying qubits, can be transmitted over larger distances without suffering from too much decoherence while single material quantum systems may be used as matter qubits to store and process quantum information locally. For many applications, the particular advantages of both kinds of systems are needed. Hence, we require interfaces between flying qubits and matter qubits. In the first part of this thesis, we develop suitable protocols for implementing interfaces between these flying qubits and matter qubits. The key challenge is to design the interactions to allow the efficient coupling of single photons to single material quantum systems, such as atoms and ions. This is not only of interest for possible practical applications of quantum mechanics but also drives fundamental research, as it is directly connected to a precise control and enhancement of matter-field interactions. The second part of this thesis is concerned with the applications of quantum technologies for simulating complex quantum systems, which cannot be treated by classical means. In many cases, the simulation of complex quantum systems turns out to be a difficult task due to the basic structure of quantum mechanics. The same aspects of quantum mechanics, which allow us to tackle computationally hard problems by using quantum algorithms, create difficulties in understanding the behavior of complex quantum systems. However, the understanding of complex quantum systems is not only of fundamental importance but might also enable us to give answers to problems of practical significance, such as an explanation for high-temperature superconductivity. Here, we develop protocols for implementing such quantum simulations based on ions trapped in state of the art ion traps. The applications of these kinds of quantum simulations are ranging from fundamental research to process design, control, and optimization. TUprintd 2017-02-14 Ph.D. Thesis NonPeerReviewed text CC-BY-ND 4.0 International - Creative Commons, Attribution No-derivatives https://tuprints.ulb.tu-darmstadt.de/6004/1/Dissertation.pdf Trautmann, Nils <http://tuprints.ulb.tu-darmstadt.de/view/person/Trautmann=3ANils=3A=3A.html> (2017): Interfaces between light and matter for quantum information processing.Darmstadt, TUprintd, Technische Universität Darmstadt, [Ph.D. Thesis] en info:eu-repo/semantics/doctoralThesis info:eu-repo/semantics/openAccess
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language en
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sources NDLTD
description Quantum communication and quantum computation are anticipated quantum technologies which enable us to tackle problems which are hard or even impossible to solve by classical means. A major challenge in implementing real life applications for quantum communication and quantum computation is to implement efficient interfaces between different kinds of quantum systems which serve as carriers of quantum information, such as single photons and single material quantum systems (i.e. atoms, ions ...). These different kinds of quantum systems have different advantages and disadvantages if it comes to practical applications. Single photons, which may serve as flying qubits, can be transmitted over larger distances without suffering from too much decoherence while single material quantum systems may be used as matter qubits to store and process quantum information locally. For many applications, the particular advantages of both kinds of systems are needed. Hence, we require interfaces between flying qubits and matter qubits. In the first part of this thesis, we develop suitable protocols for implementing interfaces between these flying qubits and matter qubits. The key challenge is to design the interactions to allow the efficient coupling of single photons to single material quantum systems, such as atoms and ions. This is not only of interest for possible practical applications of quantum mechanics but also drives fundamental research, as it is directly connected to a precise control and enhancement of matter-field interactions. The second part of this thesis is concerned with the applications of quantum technologies for simulating complex quantum systems, which cannot be treated by classical means. In many cases, the simulation of complex quantum systems turns out to be a difficult task due to the basic structure of quantum mechanics. The same aspects of quantum mechanics, which allow us to tackle computationally hard problems by using quantum algorithms, create difficulties in understanding the behavior of complex quantum systems. However, the understanding of complex quantum systems is not only of fundamental importance but might also enable us to give answers to problems of practical significance, such as an explanation for high-temperature superconductivity. Here, we develop protocols for implementing such quantum simulations based on ions trapped in state of the art ion traps. The applications of these kinds of quantum simulations are ranging from fundamental research to process design, control, and optimization.
author Trautmann, Nils
spellingShingle Trautmann, Nils
Interfaces between light and matter for quantum information processing
author_facet Trautmann, Nils
author_sort Trautmann, Nils
title Interfaces between light and matter for quantum information processing
title_short Interfaces between light and matter for quantum information processing
title_full Interfaces between light and matter for quantum information processing
title_fullStr Interfaces between light and matter for quantum information processing
title_full_unstemmed Interfaces between light and matter for quantum information processing
title_sort interfaces between light and matter for quantum information processing
publisher TUprintd
publishDate 2017
url https://tuprints.ulb.tu-darmstadt.de/6004/1/Dissertation.pdf
Trautmann, Nils <http://tuprints.ulb.tu-darmstadt.de/view/person/Trautmann=3ANils=3A=3A.html> (2017): Interfaces between light and matter for quantum information processing.Darmstadt, TUprintd, Technische Universität Darmstadt, [Ph.D. Thesis]
work_keys_str_mv AT trautmannnils interfacesbetweenlightandmatterforquantuminformationprocessing
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