All talks at Winchester Discovery Centre, Jewry Street 7.15 for 7.45 unless otherwise advertised.
Licensed bar serving hot drinks, cakes and snacks. No charge to attend. Contributions welcome.
Mon 7th Jan 2019. “Wireless Communications: Towards a Connected World of People and Things.” K. Satyanarayana
Wireless communication has evolved from pigeon-post to paging, voice calls, text messages, video calls – and now Internet everywhere. It has become the ubiquitous means of socializing, doing business and of entertainment. There are around 5 billion mobile phones in use through which we transmit around 60 terabytes of data every month. And yet, this is just the beginning – the future is even more exciting as we are moving from the internet-of-things to holographic video calls, which can conjure up the image of a person right in the room when we talk to them. However, one of the key issues of this technology, whether we have the capacity to accommodate all these users at a high quality-of-service. An obvious solution to circumvent this problem is to increase the bandwidth used. But we only have a limited bandwidth.
In this talk, I shall shed light on how to address this problem.
Satyanarayana (www.satyanarayana.xyz) received his B. Tech. degree in Electrical Engineering from the Indian Institute of Technology Madras, India, in 2014. During Jul’14-Aug’15, he worked as a research assistant at Indian Institute of Science, Bangalore. Currently, Satya is a research scholar in Wireless Communications at the University of Southampton in liaison with InterDigital Europe, London, UK. His research interests include millimeter wave communications, hybrid beamforming, with an emphasis on transceiver algorithms for wireless communication systems and multi-functional MIMO. He has over a dozen publications and a patent.
Mon Feb 4th 2019 “The Origin of the First Supermassive Black Holes in the Universe” Dr Dan Whalen
Most massive galaxies in the universe today harbor supermassive black holes (SMBHs), with masses from a few million to tens of billions of solar masses. But very bright quasars powered by billion solar mass BHs have now been discovered at redshift z ~ 7, or just 775 million years after the Big Bang. They pose serious challenges to current theories of cosmological structure formation because it is not known how BHs this massive appeared by such early epochs. I will discuss the possible origins of the first quasars and present new supercomputer simulations of how they could form in the first billion years of the universe.
Dan’s biography: PhD University of Illinois, Urbana Champaign 2006 Research Fellow, Los Alamos National Laboratory (LANL) 2006 – 2009 McWilliams Fellow in Cosmology, Carnegie Mellon University 2009 – 2012 Research Scientist, LANL 2012 – 2014 Deputy Group Leader, Institute for Theoretical Astrophysics, Univ of Heidelberg 2014 – 2016 Senior Lecturer, Institute of Cosmology and Gravitation, University of Portsmouth 2016 On
March 4th “What is a quantum internet?” Daryus Chandra
April 1st “The very, very early universe”. Prof David Wands