In this paper a programmable quantum state discriminator is implemented by using nuclear magnetic resonance. We use a two qubit spin-1/2 system, one for the data qubit and one for the ancilla (programme) qubit. This device does the unambiguous (error free) discrimination of pair of states of the data qubit that are symmetrically located about a fixed state. The device is used to discriminate both, linearly polarized states and elliptically polarized states. The maximum probability of the successful discrimination is achieved by suitably preparing the ancilla qubit. It is also shown that, the probability of discrimination depends on angle of unitary operator of the protocol and ellipticity of the data qubit state.
Instruction-Set Architecture for Programmable NV-Center Quantum Repeater Nodes
University of Pisa（比萨大学）；Institute for Informatics and Telematics (IIT), National Research Council (CNR)（意大利国家研究委员会信息学与遥测研究所）；Technische Universität Dresden（德累斯顿工业大学）
Simulating Hamiltonian dynamics in a programmable photonic quantum processor using linear combinations of unitary operations
State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University（北京大学物理学院介观物理国家重点实验室）；Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University（北京大学纳米光子学与光电子前沿科学中心及量子物质协同创新中心）；Collaborative Innovation Center of Extreme Optics, Shanxi University（山西大学极端光学协同创新中心）；Peking University Yangtze Delta Institute of Optoelectronics（北京大学长三角光电科学研究院）；Hefei National Laboratory（合肥国家实验室）
Parahydrogen Cooling of Nuclear Spin Chains at Hypogeomagnetic Fields
International Tomography Center, SB RAS（俄罗斯科学院西伯利亚分院国际成像中心）；Novosibirsk State University（新西伯利亚国立大学）；Chimie Physique et Chimie du Vivant (CPCV, UMR 8228), Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université（巴黎高等师范学院化学系物理与生命化学实验室（CPCV，UMR 8228），PSL大学，索邦大学）；Johannes Gutenberg University, Institute of Physics（约翰内斯·古腾堡大学物理研究所）；Helmholtz Institute Mainz（美因茨亥姆霍兹研究所）；GSI Helmholtzzentrum für Schwerionenforschung GmbH（德国重离子研究中心亥姆霍兹有限公司）；Department of Chemistry, University of Miami（迈阿密大学化学系）；Department of Physics, University of Miami（迈阿密大学物理系）；Frost Institute for Chemistry and Molecular Science（弗罗斯特化学与分子科学研究所）
Johannes Gutenberg University of Mainz（美因茨约翰内斯·古腾堡大学）；Helmholtz Institute Mainz（美因茨亥姆霍兹研究所）；GSI Helmholtzzentrum fur Schwerionenforschung（GSI重离子研究中心）；University of California, Berkeley（加州大学伯克利分校）
