QMHP: Decoherence and Entanglement Decay in Nanosystems and Applications to Quantum Information Systems

建议编号：ECCS-0757204建议标题：QMHP：纳米系统中的退相干和纠缠衰减以及量子信息系统的应用PI名称：O‘Connell，Robert F.Pi Institution：路易斯安那州立大学和农业与机械学院研究的目的是研究与纳米技术相关的量子力学中的基本问题，以及如何最好地将其应用于与量子信息系统有关的纳米设备和系统的设计，例如量子计算、隐形传态和密码学。该方法首先将重点放在超导约瑟夫森电路上，这些电路特别令人感兴趣，因为集成电路制造技术使它们成为构建工作设备所需的可扩展性的理想选择。拟议活动的智力优势是它将对理论物理产生广泛影响，特别是量子世界。之所以关注纠缠，不仅是因为它是量子力学的特征，还因为为了构建可扩展的量子器件，量子比特(Qubit)必须进行纠缠。纠缠体现在量子系统中空间上分离的部分之间存在关联(本质上，非定域性或爱因斯坦所说的？)。。。在远处有可怕的动作。。转到研究的更广泛的方面，将量子设备纳入集成电路、计算机和通信设备的世界预计将对计算能力、通信能力和密码学产生重大影响。此外，这项工作背后的挑战应该会吸引学生，并导致人们对科学和工程重新产生兴趣。此外，这将导致美国在此类设备制造方面的竞争力增加，以及随之而来的社会和经济影响。

AbstractProposal Number: ECCS-0757204Proposal Title: QMHP: Decoherence and Entanglement Decay in Nanosystems and Applications to Quantum Information SystemsPI Name: O'Connell, Robert F. PI Institution: Louisiana State University & Agricultural and Mechanical College The objective of the research is to investigate fundamental questions in quantum mechanics of relevance to nanotechnology and how best it may be applied to the design of nanodevices and systems pertaining to quantum information systems, such as quantum computation, teleportation and cryptography. The approach will first concentrate on superconducting Josephson circuits, which are of particular interest because integrated-circuit fabrication technology makes them a desirable choice for the scalability necessary for constructing working devices.The intellectual merit of the proposed activity is that it will have a broad impact on theoretical physics, especially the quantum world. The focus is on entanglement, not only because it is the characteristic trait of quantum mechanics, but also because quantum bits (qubits) must be entangled in order to construct scalable quantum devices. Entanglement manifests itself in the existence of correlations between parts of a quantum system which are spatially separated (in essence, non-locality or what Einstein referred to as ? . . . spooky action at a distance . . .?).Turning to the broader aspects of the research, the incorporation of quantum devices into the world of integrated circuits, computers and communication devices is expected to have a major impact on computing power, communication capacity and cryptography. Also, the challenges underlying this work should attract students and lead to a renewed interest in science and engineering. Moreover, it will lead to increasing U.S.competiveness in the manufacture of such devices, with its attendant social and economic implications.