Abstract
Quantum state preparation in high-dimensional systems is an essential requirement for many quantum-technology applications. The engineering of an arbitrary quantum state is, however, typically strongly dependent on the experimental platform chosen for implementation, and a general framework is still missing. Here we show that coined quantum walks on a line, which represent a framework general enough to encompass a variety of different platforms, can be used for quantum state engineering of arbitrary superpositions of the walker's sites. We achieve this goal by identifying a set of conditions that fully characterize the reachable states in the space comprising walker and coin and providing a method to efficiently compute the corresponding set of coin parameters. We assess the feasibility of our proposal by identifying a linear optics experiment based on photonic orbital angular momentum technology.
Original language | English |
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Article number | 062326 |
Pages (from-to) | 1-11 |
Journal | Physical Review A (Atomic, Molecular, and Optical Physics) |
Volume | 96 |
Issue number | 6 |
DOIs | |
Publication status | Published - 21 Dec 2017 |
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Dive into the research topics of 'Quantum state engineering using one-dimensional discrete-time quantum walks'. Together they form a unique fingerprint.Datasets
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Dataset for "Quantum state engineering using one-dimensional discrete-time quantum walks"
Innocenti, L. (Creator), Queen's University Belfast, Aug 2020
DOI: 10.17034/48708356-c4b4-4874-89c5-fdd97ba83e6b, https://github.com/lucainnocenti/QSE-with-QW-code
Dataset
Student Theses
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Machine-learning-assisted state and gate engineering for quantum technologies
Author: Innocenti, L., Dec 2020Supervisor: Ferraro, A. (Supervisor) & Paternostro, M. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of Philosophy
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