Bulletin of the American Physical Society
86th Annual Meeting of the APS Southeastern Section
Volume 64, Number 19
Thursday–Saturday, November 7–9, 2019; Wrightsville Beach, North Carolina
Session E01: Quantum Computing |
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Chair: Pavel Lougovski, Oak Ridge National Laboratory Room: Holiday Inn Resort Causeway/Masonboro |
Friday, November 8, 2019 8:00AM - 8:30AM |
E01.00001: NISQ Applications on Trapped Ion Quantum Computers Invited Speaker: Creston D. Herold Trapped ions are a promising technology for large scale quantum computation. They exhibit long coherence times and have been used to demonstrate world record gate fidelities. We routinely trap linear chains of tens of ions and two- dimensional crystals of hundreds of ions. While there are myriad engineering challenges to surmount to scale up to full control over many ions for circuit based quantum computing, the Noisy Intermediate-Scale Quantum (NISQ) systems which already exist present other computational opportunities. In this talk, I will describe various efforts at GTRI toward the development of trapped ion quantum computers, including a new project to realize trapped ion hardware tailored for combinatorial optimization. [Preview Abstract] |
Friday, November 8, 2019 8:30AM - 9:00AM |
E01.00002: Continuous variable (CV) quantum computation over the optical frequency comb Invited Speaker: Carlos Andres Gonzalez Arciniegas In order to implement quantum algorithms that allow practical applications, it is known that we need to provide a platform which avoids decoherence - in order to maintain the quantum properties of the system-, achieves scalability- the property to generate a large amount of entangled systems- and where it is possible to perform precisely controlled interactions - in order to implement quantum gates. It have been great improvements in the taming the decoherence and in the implementation of high fidelity quantum gates for qubits platforms such as trapped ions or superconducting devices -like quantum dots- but currently is not clear how those systems would address the scalablity issue. \\ In this talk, I will present how the quantum frequency comb in the continuous variable regime generated by the optical parametric oscillator (OPO) is a promising candidate for the implementation of a quantum computer. I will explain the process of generation of large scale entangled states and how they can be useful for measurement based quantum computation. I will also present the progress done in this topic at University of Virginia in the group lead by Prof. Oliver Pfister. [Preview Abstract] |
Friday, November 8, 2019 9:00AM - 9:30AM |
E01.00003: Quantum Resource Theories: An overview and some recent results Invited Speaker: Iman Marvian If one looks at the scientific history of the theory of entanglement, the turning point is easily seen to occur in the mid-nineties, at the point when researchers in quantum information theory began to consider entanglement as "a resource as real as energy". It gradually became clear that the entanglement theory should be understood as a framework to study questions about manipulating resource states for performing certain tasks, similar to the theory of thermodynamics. From this point on, entangled states and entangling operations were defined as those states and operations that cannot be implemented when one only has access to Local Operations and Classical Communication. Researchers then began to systematically answer questions such as: under this kind of restriction when is it possible to convert one resource state into another? How do we quantify the resource? What is the resource cost of simulating an operation? Subsequently, motivated by the success of the resource theory approach to entanglement, many researchers started applying this approach to understand other properties of quantum systems, such as coherence, asymmetry and athermality in quantum thermodynamics. In this talk, I give an introduction to quantum resource theories, with more emphasis on the resource theories of entanglement, coherence and asymmetry. I also discuss some recent results on distillation of quantum coherence in the context of quantum thermodynamics. [Preview Abstract] |
Friday, November 8, 2019 9:30AM - 10:00AM |
E01.00004: Hardware-Centric Quantum Computing for Noisy Systems Invited Speaker: Eugene Dumitrescu Abstract: Improvements in the availability and size of quantum information processing platforms motivates hybrid classical-quantum computing methods which rely on noisy intermediate scale quantum (NISQ) devices. In contrast to fault tolerant computing, which abstracts away many implementation details, NISQ computing may benefit from a detailed understanding of analog dynamics. In this talk, I will present recent work detailing i) the characterization of Hamiltonian dynamics in open quantum systems and ii) the use of Hamiltonian controls to suppress noise sources. An analysis of the potential to improve hybrid algorithmic performance is made in both cases. [Preview Abstract] |
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