Luttinger-liquid behavior in tunneling through a quantum dot at zero magnetic field.

Phys Rev Lett

Physics Department, Ben Gurion University, Beer Sheva, 84105, Israel.

Published: December 2002

AI Article Synopsis

  • The study focuses on the thermodynamic and transport properties of a two-dimensional circular quantum dot at zero magnetic field, emphasizing the impact of a strong confining potential.
  • In this scenario, the quantum dot's energy levels show a shell structure, suggesting that the behavior of these properties aligns with Luttinger liquid theory.
  • The findings are supported by numerical diagonalization, and the paper discusses the potential experimental implications of observing these Luttinger liquid characteristics in real systems.

Article Abstract

Thermodynamic and transport properties of a two-dimensional circular quantum dot are studied theoretically at zero magnetic field. In the limit of a large confining potential, where the dot spectrum exhibits a shell structure, it is argued that both spectral and transport properties should exhibit Luttinger liquid behavior. These predictions are verified by direct numerical diagonalization. The experimental implications of such Luttinger liquid characteristics are discussed.

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http://dx.doi.org/10.1103/PhysRevLett.89.256401DOI Listing

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