April 25, Marco Merkli, Memorial University of NewfoundlandColloquium (Room TBA), 2:30pm. Ergodicity of the spin-boson model for arbitrary coupling strength
I will present the ideas of a proof that the spin-boson system has the property of "Return to Equilibrium", no matter how strongly the spin is coupled to the bosonic heat bath. The question of "Return to Equilibrium" of open quantum systems has been studied by many authors over the last years, but only for weakly coupled systems. Our approach is based on a polaron transformation (introduced by Leggett et al.) and spectral analysis of the generator of the dynamics. The common complex scaling method for the spectral analysis does not apply in the situation at hand. We use a variant of Mourre-theory to examine the spectrum.
This is joint work with Martin Koenenberg and Haifeng Song.
- Fast-track student Jarrod Hicks scored among the top 15% of participants on the 2013 William Lowell Putnam Mathematical Competition, considered to be one of the most prestigious mathematics examination in the world. Congratulations! UAB's Putnam team is coached by Profs. Jung and Simanyi. The competition is held once a year in December.
- Mitch Wyatt, John Samples, and Gaurav Verma were chosen as the department's Outstanding PhD Student, Outstanding Master's Student, and Outstanding Undergraduate Student, respectively. Congratulations to all.
- On April 8 an Interdisciplinary Innovation Forum on Mathematical Biology will take place in the UAB National Alumni Society House from 1pm to 3pm.
- Fast-track student Alexandra Fry has been selected to participate at the highly competitive 2014 Program for Women and Mathematics on Random Matrix Theory held at the Institute of Advanced Study in Princeton, NJ.
- Graduate student Nichole Pompey won first place at the Emerging Researchers National Conference in Washington, DC, for her presentation on "A Randomized Algorithm for Tensor Decomposition".
- Ph.D. student Kyle Besing won a first place at the 2014 Graduate Student Research Days.
- Dr. John Mayer was appointed co-director of the UABTeach initiative which was recently awarded a $1.45 million dollar grant from the National Math and Science Initiative (NMSI). The UABTeach initiative will revolutionize the preparation of Science, Technology, Engineering and Mathematics (STEM) teachers at UAB and will dramatically impact the science education of Alabama's future K-12 students. For further information see the announcements here and here and, of course, the UABTeach site.
- Profs. Starr, Stolz, and Jung won an NSF grant supporting the CBMS Conference: Quantum Spin Systems which will take place in June 2014.