on 05-02-2010
Francisco Marcos de Assis (U Federal de Campina Grande).
February 5, 2010, Friday, 15h.
Location: Room P4.35, Post-Graduation Building, IST.
Abstract:
Quantum channels have a number of capacities that depends fundamentally on the kind of information to be carried, the employed resources and the communication protocol. In this work, we generalize the definition of zero-error capacity of a classical channel to the zero-error capacity of a quantum channel. We propose a new kind of capacity for transmitting classical information through a quantum channel.
The quantum zero-error capacity is defined by the maximum amount of classical information per channel use that can be sent over a noisy quantum channel, with the restriction that the probability of error must be equal to zero. The communication protocol used in the definition assumes codewords are built as tensor products of input quantum states, whereas entangled measurements can be performed between several channel outputs. Hence, our communication protocol is similar to the Holevo-Schumacher-Westmoreland protocol. Additionally we introduce some connection between concepts related to quantum channel capacity with concepts found in graph theory.
More Information..
on 02-02-2010
IEEE VTS Portugal Chapter, the Instituto de Telecomunicações and the University of Beira Interior invite the entire academic community and all interested that wish to attend the workshop ''Introduction to LaTeX'' on the 24th of February, Wednesday, at 14 hours, in the Amphitheater 8.1 on the Engineering Building 1, University of Beira Interior.
Latex is a high quality text printing tool in wide use by mathematicians, physicists, engineers and scientists in general, but not only. Professor Miguel Oliveira e Silva, from the University of Aveiro, will give a theoretical practice training for about 1 hour and 30 minutes on how to produce documents, highlighting the common features.
For more information, please consult the following address:
http://www.e-projects.ubi.pt/latex/
The workshop will be broadcast via internet at the same address.
More Information..