Electron fractionalization in graphene-like structures<\/strong><\/p>\n Electron fractionalization is intimately related to topology. In one-dimensional systems, such as polyacetelene, fractionally charged states exist at domain walls between degenerate vacua. In two-dimensional systems, fractionalization exists in quantum Hall fluids, where time-reversal symmetry is broken by a large external magnetic field. Recently, there has been a tremendous effort in the search for examples of fractionalization in two-dimensional systems with time-reversal symmetry. In this research work, we showed that fractionally charged topological excitations exist in tight-biding systems where time-reversal symmetry is respected.<\/p>\n \u201cFractional Quantum Hall States at Zero Magnetic Field\u201d T. Neupert, L. Santos, C. Chamon, and C. Mudry,\u00a0<\/span>Phys. Rev. Lett.<\/em>\u00a0<\/span>106<\/strong>, 236804 (2011).<\/p>\n \u201cElectron fractionalization in two-dimensional graphenelike structures\u201d C.-Y. Hou, C. Chamon, and C. Mudry,\u00a0<\/span>Phys. Rev. Lett.<\/em>\u00a0<\/span>98<\/strong>\u00a0<\/span>186809 (2007).<\/p>\n \u201cQuantum glassiness in strongly correlated clean systems: an example of topological overprotection\u201d Claudio Chamon,\u00a0<\/span>Phys. Rev. Lett.<\/em>\u00a0<\/span>94<\/strong>, 040402 (2005).<\/p>\n \u201cQuantum pump for spin and charge transport in a Luttinger liquid\u201d Prashant Sharma and Claudio Chamon,\u00a0<\/span>Phys. Rev. Lett.<\/em>\u00a0<\/span>87<\/strong>, 096401 (2001).<\/p>\n \u201cSolitons in Carbon Nanotubes\u201d Claudio Chamon,\u00a0<\/span>Phys. Rev. B<\/em>\u00a0<\/span>62<\/strong>, 2806 (2000).<\/p>\nSelected Publications<\/h3>\n