ITR: Quantum Information Processing with Ultracold Rydberg Atoms

EIA-0082913 Cote，Robin University of ConnecticutITR：使用超冷里德堡原子进行量子信息处理超冷里德堡原子具有长寿命和远距离强相互作用，这可能使它们成为量子信息处理的理想选择。该项目正在通过研究和实验实现一种通用的两量子位逻辑门来研究这种可能性，在这种逻辑门中，两原子状态获得的相位取决于原子相互作用的时间。该项目正在研究含有里德堡原子的稀疏填充光学晶格，这将允许制备任意状态的识别良好的原子。我们将研究原子-原子相互作用的性质，包括外加电场和磁场的影响。最后，将研究读取里德堡原子中存储的信息的方法，包括成像荧光和选择性电离。我们将探索大量量子比特的尺度，以及光学晶格对退相干的影响。

EIA-0082913Cote, RobinUniversity of ConnecticutITR: Quantum Information Processing with Ultracold Rydberg AtomsUltracold Rydberg atoms have long lifetimes and interact strongly at large distances, which may make them ideal for quantum information processing. This project is investigating this possibility by studying and experimentally implementing a universal two-qubit logic gate, in which a two-atom state acquires a phase that depends on the time the atoms are interacting. The project is investigating sparsely populated optical lattices containing Rydberg atoms, which will permit the preparation of well-identified atoms in arbitrary states. The properties of atom-atom interactions, including the effect of external electric and magnetic fields will be investigated. Finally, methods of reading the information stored in Rydberg atoms will be investigated, including imaged fluorescence and selective ionization. Scaling to large numbers of qubits, as well as the effects of the optical lattice on decoherence, will be explored.