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  4. Generation of multipartite entanglement in coupled-cavity arrays as a resource for quantum technologies
 
Zitierlink DOI
10.26092/elib/2592

Generation of multipartite entanglement in coupled-cavity arrays as a resource for quantum technologies

Veröffentlichungsdatum
2023-10-11
Autoren
Bostelmann, Marc  
Betreuer
Gies, Christopher  
Gutachter
Sentef, Michael  
Zusammenfassung
Entanglement is an essential part of quantum mechanics and a resource for most quantum technologies. While entangled two-particle Bell states are well established, the generation and classification of entanglement in multipartite systems is much more difficult to achieve. At the same time, multipartite entanglement is the key to unlock the full advantage provided by the exponentially large Hilbert space of quantum systems. This thesis explores possibilities of entanglement generation with a specific focus on applications in quantum technologies. In systems of coupled microcavity arrays, coherent optical pulses are considered to directly drive the quantum system into multipartite entangled target states. The building block of such coupled-cavity arrays consists of a single mode cavity with a two-level emitter, whose interaction is described by the Jaynes–Cummings model. In order to gain insight into the system, a novel representation of its eigenspectrum is presented, which shows the eigenenergies and the composition of the corresponding eigenstates. Based on this, a numerical scheme, which is the central achievement of this thesis, is developed that allows to determine precise excitation parameters to generate entanglement. Finally, this scheme is used to show the generation of multipartite entanglement in the form of W and phased Dicke states with high fidelity.
Schlagwörter
quantum entanglement

; 

multipartite entanglement

; 

generation of entanglement

; 

quantum technologies

; 

coupled-cavity arrays

; 

qubits

; 

cavity quantum electrodynamics

; 

quantum mechanics

; 

quantum optics
Institution
Universität Bremen  
Fachbereich
Institut für Theoretische Physik (ITP)  
Dokumenttyp
Dissertation
Lizenz
https://creativecommons.org/licenses/by/4.0/
Sprache
Englisch
Dateien
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Name

Dissertation_Marc_Bostelmann.pdf

Size

6.6 MB

Format

Adobe PDF

Checksum

(MD5):ae8df18da53605239162ad2dcab03596

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