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arXiv · 1707.05760

Generation of the Complete Four-dimensional Bell Basis

Feiran Wang·Manuel Erhard·Amin Babazadeh·Mehul Malik·Mario Krenn·Anton Zeilinger
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Abstract

The Bell basis is a distinctive set of maximally entangled two-particle quantum states that forms the foundation for many quantum protocols such as teleportation, dense coding and entanglement swapping. While the generation, manipulation, and measurement of two-level quantum states is well understood, the same is not true in higher dimensions. Here we present the experimental generation of a complete set of Bell states in a four-dimensional Hilbert space, comprising of 16 orthogonal entangled Bell-like states encoded in the orbital angular momentum of photons. The states are created by the application of generalized high-dimensional Pauli gates on an initial entangled state. Our results pave the way for the application of high-dimensional quantum states in complex quantum protocols such as quantum dense coding.

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Feiran Wang, Manuel Erhard, Amin Babazadeh, Mehul Malik, Mario Krenn, Anton Zeilinger. 2017-07-18. Generation of the Complete Four-dimensional Bell Basis. https://doi.org/10.1364/optica.4.001462

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