Large-Scale Quantum Architectures

"Large-Scale Quantum Architectures"Tzvetan MetodiUniversity of California, DavisAbstract:Quantum computing is an emerging field that offers revolutionary and exciting new means in the way we process, store, and transport information. Moreover, realizing large-scale quantum systems requires advances in science and engineering that are now very close to reality. Such systems will need the orchestration of many classical and quantum parts that fit together into one unified architecture in which each component plays an integral role over the course of the application execution. Therefore, it is important that we draw upon the experiences gained from traditional architectures, to develop a model for a large-scale quantum system that provides the methodology necessary for the many different components to work together.In this talk, I will first present the design of the Quantum Logic Array (QLA) architecture, which tackles critical scalability issues such as the cost of error correction and data distribution over large-distances. To accurately model the performance of the QLA architecture, we employ the ion-trap technology, where every component necessary for universal quantum computation has been demonstrated in the laboratory. However, due to its design approach for maximizing parallelism, the QLA system suffers from large area overhead. To combat the area problem, I describe a different architecture system that uses the concept of hardware specialization employed in traditional architectures. The new architecture is based on the QLA model, but is divided into separately optimized quantum memory hierarchy and logic specific regions. The result is a scalable system design that exploits the available parallelism to balance both quantum and classical resources while both reducing the area of the chip and increasing its performance. I end my talk with a discussion on the many open issues remaining when designing systems to perform quantum computation.Speaker Bio:Tzvetan Metodi received his Bachelors degree in physics from the University of California at Davis. He is currently a 5th year PhD student in Computer Science also at UC Davis and a visiting researcher at UC Santa Barbara for Professor Fred Chong. Tzvetan's current work focuses on the development of balanced architectural models of organization and specialization for emerging nanoelectronic computing devices. While a member of the Quantum Architecture Research Center (QARC), which is organized by faculty at UC Berkeley, University of Washington, MIT, and UC Davis, he spent parts of 2004 and 2006 as a visiting scholar at MIT under the guidance of Professor Isaac Chuang. Tzvetan is the principle author of a book titled "Quantum Computing for Computer Architects" published as part of the Synthesis Lectures on Computer Architecture by Morgan & Claypool Publishers in November, 2006.Hosted by: Prof. Viktor Prasanna, prasanna@usc.edu

Location: Hughes Aircraft Electrical Engineering Center (EEB) - -248

Audiences: Everyone Is Invited

Contact: Rosine Sarafian