A photon source with high-dimensional entanglement is able to bring increasing capacity of information in quantum communication.The dimensionality is determined by the chosen degree of freedom of the photons and is li...A photon source with high-dimensional entanglement is able to bring increasing capacity of information in quantum communication.The dimensionality is determined by the chosen degree of freedom of the photons and is limited by the complexity of the physical systems.Here we propose a new type of high-dimensional entangled photon source,generated via path-indistinguishable scheme from a two-dimensional atomic cloud,which is prepared in a magneto-optical trap.To verify the photon source,we demonstrate experimentally the quantum state of the single photons heralded by its partner photon,with homodyne tomographic technology.展开更多
基金the National Natural Science Foundation of China(Grant No.12074171)the Guangdong Key Project(Grant No.2019ZT08X324)+1 种基金the Guangdong Innovation Project(Grant No.2019KTSCX160)Guangdong Provincial Key Laboratory(Grant No.2019B121203002)。
文摘A photon source with high-dimensional entanglement is able to bring increasing capacity of information in quantum communication.The dimensionality is determined by the chosen degree of freedom of the photons and is limited by the complexity of the physical systems.Here we propose a new type of high-dimensional entangled photon source,generated via path-indistinguishable scheme from a two-dimensional atomic cloud,which is prepared in a magneto-optical trap.To verify the photon source,we demonstrate experimentally the quantum state of the single photons heralded by its partner photon,with homodyne tomographic technology.
