Leopold Infeld Colloquium
2006/2007 | 2007/2008 | 2008/2009 | 2009/2010 | 2010/2011 | 2011/2012 | 2012/2013 | 2013/2014 | 2014/2015 | 2015/2016 | 2016/2017 | 2017/2018
2010-11-25 (Thursday)
Prof. Dr. Dagmar Bruss (Institut fuer Theoretische Physik III Heinrich-Heine-Universitaet Duesseldorf)
Quantum entanglement: analysis and detection
Entanglement is one of the most fascinating features of quantum mechanics, and enables various protocols in quantum information processing. The aim of this talk is to give an overview of methods for the theoretical analysis of entanglement, and to provide a link to the detection of entanglement in the laboratory. Special emphasis will be given to the method of witness operators. In the context of measuring witness operators, a connection between entanglement and diffractive properties of periodic spin systems will be pointed out.
2010-11-18 (Thursday)
Prof. Kenneth G. Wilson
Additional Sources for Physics Research Funding in the Future?
Additional future funding for physics research might come from two different sources. One source, not yet visible, could be research grants from the private sector provided for a subgroup of physicists. These physicists would have already been recruited to participate in a future decades-long career development ladder for increasingly highly paid future top organizational executives. These physicists would (presumably) have already agreed to complete a first career in physics and then launch a second career as an aspiring top executive leader nationally or internationally. They might be selected for recruitment to such second careers based on their already demonstrated leadership skills in sizeable physics research projects (engaging perhaps ten or more physicists). They could then be helped to interpret and learn from their continuing experience as a leader in such projects for a number of years prior to making their switch to their second career. The amount of funding provided through such research grants as part of their incentive to agree to make aswitch to a second career could be quite substantial. The amount of such funding could grow with time as the need for exceedingly capable executive leaders, already acute and largely unmet as of 2010, continues to grow. I know from private conversations that a first career in physics can provide an invaluable background in creative thinking, problem solving, and pushing for unceasing innovation by a person who later joins a career ladder headed for top executive leadership positions. Another source, already non-trivial in magnitude but likely to increase in the future, will be discussed far more briefly. It is the need to ensure ever-increasing reliability, through increasingly careful testing, of the underlying physical laws governing physics-based instrumentation used in multi-billion-dollar and increasingly costly applications in medicine, aviation, chemical engineering, astronomy and space research, and the like.
2010-11-04 (Thursday)
prof. Krzysztof Meissner (IFT UW, IPJ)
Axions as Dark Matter
I will discuss theoretical motivations for the existence of axions and bounds on their masses and interactions coming from astrophysics andcosmology. I will describe arguments to propose axions as natural ColdDark Matter candidates. I will present existing experiments searching foraxions and in particular experiment OSQAR at CERN. On the theory sideslightly enlarged Standard Model with conformal symmetry naturallyincludes axions as (pseudo)Goldstone bosons of spontaneously broken lepton number symmetry with very small couplings correlated with small neutrino masses.