Implementing the Deutsch's algorithm with spin-orbital angular momentum of photon without interferometer

2011/11/29 by Pei Zhang, Yan Jiang, Ruifeng Liu +6
Computer Science · Engineering · Physics and Astronomy · #Orbital Angular Momentum in Optics #Photonic and Optical Devices #Quantum Information and Cryptography #quant-ph

paper · pdf · doi:10.1016/j.optcom.2011.11.024

published as Optics Communications 285 (2012) 838--841 · 4 pages, 3 figures

openalex publication_date 2011/11/29 · arxiv created 2012/07/24 · arxiv updated 2012/07/25 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Deutsch's algorithm is the simplest quantum algorithm which shows the acceleration of quantum computer. In this paper, we theoretically advance a scheme to implement quantum Deutsch's algorithm in spin-orbital angular momentum space. Our scheme exploits a newly developed optical device called "q-plate", which can couple and manipulate the spin-orbital angular momentum simultaneously. This experimental setup is of high stability and efficiency theoretically for there is no interferometer in it.

Citations

• Quantum-enhanced measurements: beating the standard quantum limit
• Pancharatnam-Berry phase optical elements for wave front shaping in the visible domain: Switchable helical mode generation
• Measurement of Conditional Phase Shifts for Quantum Logic
• Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes
• Optical Spin-to-Orbital Angular Momentum Conversion in Inhomogeneous Anisotropic Media
• Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
• Quantum theory, the Church–Turing principle and the universal quantum computer