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Creating and sharing knowledge in communications and information technology

CST Workshop Series, 2011 LISBON


on 17-06-2011

... CST WORKSHOP
CST invites you to a free one-day seminar focused on successful design using the latest 3D electromagnetic simulation software. Recent innovations have made EM simulation an essential and easy to use part of any high frequency or high speed design workflow. This workshop will explore how you can best exploit the technology for your own design area. The workshop will look at local industry requirements including RF / Microwave / Antenna design, EMC / EMI predictions, and EDA / Signal Integrity analysis.
Application oriented presentations and exciting live demos show you how simulation can significantly improve throughput and reduce costs.

On-line registration (http://cst.com/Content/Events/Details.aspx?eventId=1955) is needed to attend the workshop (free of charge).

PROGRAM
9:00 9:20 Welcome and Registration
9:20 9:40 Introduction to 2011 workshop series
9:40 10:40 Key Features+Benefits of CST STUDIO SUITE 2011
10:40 11:00 Coffee break
11:00 12:00 Complete Technology for Array Design
12:00 12:30 CST frequency and transient solvers compared for the analysis of thin layer antennas, Jorge Costa – IT/ISCTE
12:30 14:00 Lunch break
14:00 14:40 Faster Design Cycles with High Performance Hardware
14:40 15:10 Development of Ka-band antenna array for satellite applications, Rafal Glogowski – IT/IST
15:10 15:40 Microwave Circuits and Components
15:40 16:10 Correcting EMC Problems by Correct EM Modeling
16:10 16:30 Coffee break
16:30 17:00 Charging Towards Successful ESD Protection Design/Problems of Scale Lightning
17:00 17:40 Discussions / Support More Information..

Seminar - Semi-quantum key distribution with less states and Semi-quantum secret sharing without entanglement


on 17-06-2011

... Daowen Qiu (SQIG, Instituto de Telecomunicações).

June 17, 2011, Friday, 15h.
Location: Room P4.35, Post-Graduation Building, IST.

Boyer, Kenigsberg, and Mor [Phys.Rev.Lett.99, 140501(2007)] proposed a new semi-quantum key distribution with four states where a key can be= securely distributed between Alice who can perform any quantum operation and Bob who works classically. We have proposed new protocols for semi-quantum key distribution with less than four states and their security has been analyzed in detail. Recently, this idea of "semi-quantumness" has been incorporated also to quantum secret sharing [Phys.Rev. A 82, 022303 (2010)], and a semi-quantum secret sharing protocol has been presented, where a quantum Alice, can share a secret key with two classical participants and they can collaborate to recover the secret, but none can do that alone. In the protocol, a three-particle maximally entangled state plays a crucial role. However, multipartite entangled states are generally difficult to prepare in experiments. Therefore, we also present a new protocol for semi-quantum secret sharing where a quantum participant can share a secret key with two classical participants without using any entanglement. The protocol is also showed to be secure against eavesdropping

Quantum Computation and Information Seminar
http://sem.math.ist.utl.pt/qci/index.xml

Support: CAMGSD, CFIF, CFP and SQIG/IT with support from FCT and FEDER, namely via projects PTDC/EEA-TEL/103402/2008 QuantPrivTel and PTDC/EIA/67661/2006 QSec More Information..