Majorana liquids: the complete fractionalization of the electron

Details Majorana liquids: the complete fractionalization of the electron Majorana liquids: the complete fractionalization of the electron

2010-04-30

arxiv.org/abs/1004.5431v3

Phys.Rev.Lett.105:057201,2010

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure; (v2) Expanded introductory discussion, see arXiv:1010.3745 for technical deltails

Scientific paper

10.1103/PhysRevLett.105.057201

We describe ground states of correlated electron systems in which the electron fractionalizes into separate quasiparticles which carry its spin and its charge, and into real Majorana fermions which carry its Fermi statistics. Such parent states provide a unified theory of previously studied fractionalized states: their descendants include insulating and conducting states with neutral spin S=1/2 fermionic spinons, and states with spinless fermionic charge carriers. We illustrate these ideas on the honeycomb lattice, with field theories of such states and their phase transitions.

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