Miscellany and Speculations

• "Band touching from real space topology in frustrated hopping models". Talk at symposium on Topological Aspects of Solid State Physics, YITP, Kyoto, Japan, June 2008: pdf, keynote (zipped)
• "Challenges in frustrated magnets". Talk at conference on New Horizons in Condensed Matter Physics, Aspen, CO, February 2008: pdf , ppt
• "Impurities in frustrated antiferromagnets". Talk at conference on Disorder, Fluctuations, and Universality, Koeln, Germany, January 2008: pdf , ppt
• "Strong Correlations, Frustration, and why you should care". Talk at workshop on Future Directions in Correlated Electron Physics, Austin, TX, October 2007: pdf , ppt

Quasi-One-Dimensional Antiferromagnets

• "Quasi-1D antiferromagnets". Talk at workshop on Quantum Fluids, Nordita, Stockholm, September 2007: pdf , ppt
• "Spinons and triplons in spatially anisotropic frustrated antiferromagnets", Talk by Dr. Masanori Kohno at the KITP workshop on Strongly Correlated Phases in Condensed Matter and Degenerate Atomic Systems . link to talk online at KITP web site.
• "Two studies of frustration on the triangular lattice" (second half is theory for Cs2CuCl4). Talk at KIAS conference on "Emergent Quantum Phases in Strongly Correlated Electron Systems", Seoul, Korea, October 2005: pdf , ppt
• Talk at APS March meeting 2005, by Anton Burkov on "Dimerized phase of the spin-1/2 anisotropic triangular lattice antiferromagnet": pdf
• Talk at APS March meeting 2005, by Oleg Starykh on "Phase diagram of the S=1/2 checkerboard antiferromagnet": pdf

"Central spin problem": electron-nuclear interactions in a quantum dot

• "Semiclassical dynamics and long time asymptotics of the central spin problem", Talk at "Quantum Phenomena in Confined Dimensions", ICTP, Trieste, Italy, June 2007: pdf , ppt

Z2 structure of band insulators

• "Z2 structure of the quantum spin Hall effect", Talk at "Dynamics and Relaxation in Complex Quantum and Classical Systems and Nanostructures", Dresden, Germany, September 2006: pdf , ppt

Frustrated magnets

• Three lectures on "Frustrated Magnetism" at the Boulder summer school for condensed matter and materials physics, 2008. They can be found here
• "Frustration and Fluctuations in Diamond Antiferromagnetic Spinels", Talk at conference on Quantum Magnetism, Minneapolis, MN, May 2008: pdf , ppt
• "Spin Liquid and Solid in Pyrochlore Antiferromagnets", Talk at workshop on Quantum Fluids, Nordita, Stockholm, August 2007: pdf , ppt
• "Frustration and fluctuations in various spinels", Talk at Conference on Highly Frustrated Magnets and Strongly Correlated Systems: From Non-Perturbative Approaches to Experiments, Trieste, Italy, August 2007.: pdf , ppt
• "Degeneracy breaking in some frustrated magnets", Talk at HFM2006, Osaka, Japan, August 2006.: pdf , ppt
• "Degeneracy breaking in some frustrated magnets", Talk at Bangalore Mott conference, Bangalore, India, July 2006: pdf , ppt
• "Degeneracy breaking in some frustrated magnets", Talk at Itzykson meeting on "Strongly Correlated Electrons", Saclay, France, June 2006: pdf , ppt
• "Quantum effects in a pyrochlore antiferromagnet: ACr2O4", Talk at KIAS conference on "Emergent Quantum Phases in Strongly Correlated Electron Systems", Seoul, Korea, October 2005: pdf , ppt

 Spin incoherent quantum wires

• Talk given at ICAM conference on "Frontiers of Science within Nanotechnology", Boston University, August 2005: pdf , ppt

Bosons on the triangular lattice

• "Two studies of frustration on the triangular lattice", Talk at KIAS conference on "Emergent Quantum Phases in Strongly Correlated Electron Systems", Seoul, Korea, October 2005: pdf , ppt
• "Bosonic Mott transitions on the triangular lattice", Talk at Low-D Quantum Condensed Matter meeting, July 2005, Amsterdam (similar talk given at conference on "Strongly Interacting Systems at the Nanoscale", ICTP, Trieste, August 2005): pdf , ppt

High temperature superconductivity

• "Competing Orders: Speculations and Interpretations", Talk at CIAR Quantum Materials meeting, May 2005. This short talk tried to provide an unbiased but personal view of the sigificance of "competing orders" in the cuprates. It is rather elementary, not too specific, and wholly non-technical: pdf , ppt

Review of Exotica

• Talk at APS March meeting 2005, Los Angeles on "Exotic Order and Criticality in Quantum Matter": pdf

Competing orders near the Mott transition

• Talk given at YKIS2004 workshop on "Physics of Strongly Correlated Electron Systems," Kyoto, Japan, November, 2004: pdf or ppt
• Talk by Subir Sachdev on this work at International Workshop on Frustrated Magnetism, Montauk, Long Island, September 2004: pdf

Deconfined Quantum Criticality

• Talk given at International Workshop on Frustrated Magnetism, Montauk, Long Island, September 2004: pdf