Dynamically manipulating topological physics and edge modes in a single degenerate optical cavity

We propose a scheme to simulate topological physics within a single degenerate cavity, whose modes are mapped to lattice sites. A crucial ingredient of the scheme is to construct a sharp boundary so that the open boundary condition can be implemented for this effective lattice system. In doing so, the topological properties of the system can manifest themselves on the edge states, which can be probed from the spectrum of an output cavity field. We demonstrate this with two examples: a static Su-Schrieffer-Heeger chain and a periodically driven Floquet topological insulator. Our work opens up new avenues to explore exotic photonic topological phases inside a single optical cavity.Comment: 6 pages, 5 figure

An Information System Framework and Prototype for Collaborative and Standardized Chinese Liquor Production

20th Americas Conference on Information Systems, AMCIS 2014, Savannah, GA, 7-9 August 2014There is a pressing need for Chinese liquor producers to use information systems in managing production process and improving production efficiency for meeting fiercely increasing market competition. Unlike liquor production in other countries, Chinese liquor production replies on experience and manual operations greatly, which has very low-level automation and informatization. This paper takes a famous Chinese liquor producer as the target case company, introduces typical information systems used in Chinese liquor production, explores the motivations to implement information systems, and examines the benefits, the problems encountered as well as the key success factors in implementation and applications of information systems in Chinese liquor production industry.Department of Management and MarketingRefereed conference pape