The capability to generate and manipulate quantum states in high-dimensional Hilbert spaces is a crucial step for the development of quantum technologies, from quantum communication to quantum computation.One-dimensional quantum walk dynamics represents a valid tool in the task of engineering arbitrary quantum states. Here we affirm such potential in a linear-optics platform that realizes discrete-time quantum walks in the orbital angular momentum degree of freedom of photons. Different classes of relevant qudit states in a six-dimensional space are prepared and measured, confirming the feasibility of the protocol. Our results represent a further investigation of quantum walk dynamics in photonics platforms, paving the way for the use of such a quantum state-engineering toolbox for a large range of applications.
|Journal||Physical Review Letters|
|Publication status||Published - 18 Jan 2019|
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Machine-learning-assisted state and gate engineering for quantum technologiesAuthor: Innocenti, L., Dec 2020
Supervisor: Ferraro, A. (Supervisor) & Paternostro, M. (Supervisor)
Student thesis: Doctoral Thesis › Doctor of PhilosophyFile
- School of Mathematics and Physics - Senior Lecturer
- Centre for Quantum Materials and Technologies (CQMT)