
Emeritus Professor
Jaan Oitmaa
BSc PhD DSc UNSW, FAIP, FAmPS
Emeritus Professor
Department and Research Groups


Research Interests
My work applies the principles of quantum mechanics and statistical mechanics to systems of a large number of strongly interacting particles, to understand and describe macroscopic quantum phenomena such as magnetism and superconductivity. I also work on mathematical models which exhibit phase transitions, a striking and ubiquitous phenomenon which involves correlations between particles over macroscopic volumes.
These studies are largely based on lattice models and use a variety of analytic and numerical techniques requiring the use of supercomputers. I am also interested in other aspects of the theory of condensed matter, and theoretical physics more generally.
Selected Publications
 J. Oitmaa, C.J. Hamer & W. Zheng, 'Series Expansion Methods for Strongly Interacting Lattice Models', (Cambridge University Press, 2006)

J. Oitmaa & C.J. Hamer, Groundstate properties and oneparticle spectra for a spin1 Heisenberg antiferromagnet from series expansions Phys. Rev. B77, 224435 (110) (2008)
 J. Oitmaa, W. Zheng & D. Tompsett, Hardcore bosons on the triangular lattice at zero temperature: a series expansion study, Phys. Rev. B73, 172401 (14) (2006)
 W. Zheng, J. Oitmaa & C.J. Hamer, Series studies of the spin1/2 Heisenberg antiferromagnet at T=0 : Magnon dispersion and structure factors, Phys. Rev. B71, 184440(110) (2005)
 J. Oitmaa & O.P. Sushkov, Twodimensional randomly frustrated spin1/2 Heisenberg model, Phys. Rev. Lett. 87, 167206 (14) (2001)
Contact Details
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School of Physics
The University of New South Wales
SYDNEY 2052
Australia
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