The orbital angular momentum(OAM)of photons provides a pivotal resource for carrying out high-dimensional classical and quantum information processing due to its unique discrete high-dimensional nature.The cyclic tran...The orbital angular momentum(OAM)of photons provides a pivotal resource for carrying out high-dimensional classical and quantum information processing due to its unique discrete high-dimensional nature.The cyclic transformation of a set of orthogonal OAM modes is an essential building block for universal high-dimensional information processing.Its realization in the quantum domain is the universal quantum Pauli-X gate.In this work,we experimentally demonstrate a cyclic transformation of six OAM modes with an averaged efficiency higher than 96%by exploiting a nonreciprocal Mach–Zehnder interferometer.Our system is simple and can,in principle,be scaled to more modes.By improving phase stabilization and inputting quantum photonic states,this method can perform universal single-photon quantum Pauli-X gate,thus paving the way for scalable highdimensional quantum computation.展开更多
基金Innovation Program for Quantum Science and Technology(2021ZD0301400)National Natural Science Foundation of China(92365107,12305020,12334012)+4 种基金National Key Research and Development Program of China(2019YFA0308700,2019YFA0308704,2022YFA1405000)Program for Innovative Talents and Teams in Jiangsu(JSSCTD202138)Natural Science Foundation of Jiangsu Province,Major Project(BK20212004)China Postdoctoral Science Foundation(2023M731613)Jiangsu Funding Program for Excellent Postdoctoral Talent(2023ZB708)。
文摘The orbital angular momentum(OAM)of photons provides a pivotal resource for carrying out high-dimensional classical and quantum information processing due to its unique discrete high-dimensional nature.The cyclic transformation of a set of orthogonal OAM modes is an essential building block for universal high-dimensional information processing.Its realization in the quantum domain is the universal quantum Pauli-X gate.In this work,we experimentally demonstrate a cyclic transformation of six OAM modes with an averaged efficiency higher than 96%by exploiting a nonreciprocal Mach–Zehnder interferometer.Our system is simple and can,in principle,be scaled to more modes.By improving phase stabilization and inputting quantum photonic states,this method can perform universal single-photon quantum Pauli-X gate,thus paving the way for scalable highdimensional quantum computation.
