Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/223463
Title: Stabilizer codes and absolutely maximally entangled states for mixed-dimensional systems
Author: Zhang, Raven
Director/Tutor: Ball, Simeon
Keywords: Entrellaçament quàntic
Codi estabilitzador
Treballs de fi de màster
Quantum entanglement
Stabilizer code
Master's thesis
Issue Date: Jul-2025
Abstract: A major difficulty in quantum computation is the ability to implement fault tolerant computations, protecting information against undesired interactions with the environment. The theory of stabiliser codes has been developed over recent years which protects information when storing or applying computations in Hilbert spaces where the local dimension is fixed, i.e. in Hilbert spaces of the form (CD)⊗n. If D is a prime power then one can consider stabiliser codes over finite fields [KKKS06], which allows a deeper mathematical structure to be used to develop stabiliser codes. However, there is no practical reason that the subsystems should be required to have the same local dimension and in this work, we introduce a stabiliser formalism for mixed dimension Hilbert spaces, i.e. of the form CD1 ⊗ · · · ⊗ CDn. We redefine entanglement measures for these Hilbert spaces and follow [HESG18] to define absolutely maximally entangled states as states which maximize this entanglement measure, and give an example of such a state on a mixed dimension Hilbert space.
Note: Màster Oficial de Ciència i Tecnologia Quàntiques / Quantum Science and Technology, Facultat de Física, Universitat de Barcelona. Curs: 2024-2025. Tutor: Simeon Ball
URI: https://hdl.handle.net/2445/223463
Appears in Collections:Màster Oficial - Ciència i Tecnologia Quàntiques / Quantum Science and Technology

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