Double-slit implementation of minimal Deutsch algorithm

Abstract

We report an experimental implementation of the minimal Deutsch algorithm in an optical setting. In this version, a redundancy is removed from the most famous form of the algorithm. The original version involves manipulation of two qubits, while in its minimal version, only one qubit is used. Our qubit is encoded in the transversal spatial modes of a spontaneous parametric down-converted signal photon, with the aid of a double slit, with the idler photon playing a crucial role in creating a heralded single photon source. A spatial light modulator (SLM) is programmed to physically generate one-bit functions necessary to implement the algorithm's minimal version, which shows that the SLM can be used in future implementations of quantum protocols.

6 pages, 4 figures

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Cited by in corpus (8)

• Quantum computation with classical light: implementation of the Deutsch-Jozsa Algorithm
• Minimum tomography of two entangled qutrits using local measurements of one-qutrit SIC-POVM
• Experimental simulation of decoherence in photonics qudits
• Deterministic Quantum Computation With One Photonic Qubit
• Optimized generation of spatial qudits by using a pure phase spatial light modulator
• Constraint optimization and $\mathcal{S}\mathcal{U}(N)$ quantum control landscapes
• Proposal for Automated Operations for Single-Photon Multipath Qudits
• Controlled generation of mixed spatial qudits with arbitrary degree of purity