COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Signal Flows in Non-Markovian Quantum Networks

## Signal Flows in Non-Markovian Quantum NetworksAdd to your list(s) Download to your calendar using vCal - Wu, R-B (Tsinghua University)
- Monday 04 August 2014, 11:45-12:25
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact Mustapha Amrani. Quantum Control Engineering: Mathematical Principles and Applications With rapid progresses in quantum technologies, quantum devices will be possibly networked at a much larger scale in the near future, over which effective analysis and synthesis are very demanding. In this paper, we construct signal flow graphs for linear quantum networks that are more concise than the traditional block diagram representation. Starting from two interconnected linear quantum systems, we present a bidirectional signal flow graph that describes the quantum action and backaction between them. Such signal flow graph can be naturally applied to non-Markovian systems with colored quantum noise inputs, and thus can include more general linear components such as spectral filters and dispersive quantum waveguides. These components can be integrated to build complex feedback networks via interconnections or serial products, where either direct or indirect coherent feedback loops are envisioned as bidirectional flows of quantum signals. Finally, we introduce the Riegle 9;s matrix gain rule to calculate transfer functions between source and sink nodes in a linear quantum network with multiple overlapping feedback loops. The theory provides a basis for synthesizing non-Markovian linear quantum feedback networks in the frequency-domain. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
- Featured lists
- INI info aggregator
- Isaac Newton Institute Seminar Series
- School of Physical Sciences
- Seminar Room 1, Newton Institute
- bld31
Note that ex-directory lists are not shown. |
## Other listsCU Chabad Society Student Community Action Web liaison group Cavendish Graduate Students' Conference 2009 Explore Islam Week 2013 i-Teams## Other talksTranslational Science: using biomarkers to guide clinical development in oncology Aspects of adaptive Galerkin FE for stochastic direct and inverse problems Single Molecule Spectroscopy Small Opuntioideae Ethics for the working mathematician, seminar 11: Winning with mathematics Bayesian optimal design for Gaussian process model |