One‐Dimensional Systems Show Signs of Interacting Electrons
SEP 01, 1996
Do electrons in one dimension interact in a way prescribed by the Luttinger‐liquid theory? To answer that question, researchers are studying the tunneling through barriers in one‐dimensional wires and across the edges of fractional quantum Hall states. A Bell Labs group has intriguing new results.
DOI: 10.1063/1.2807756
Conventional metals have been very successfully described by the Fermi‐liquid theory, but researchers are now studying a variety of more exotic materials for which other approaches might be more appropriate. Among the alternatives is a model of interacting electrons in one dimension. The model is known as the Tomonaga‐Luttinger liquid theory, after Joaquin Luttinger, who formulated it in the 1960s, and Sin‐itiro Tbmonaga, who did influential one‐dimensional studies in the 1950s. It is frequently called simply a Luttinger liquid.
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© 1996 American Institute of Physics
