Phys. Rev. Lett. 89, 256401 (2002)

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Luttinger-Liquid Behavior in Tunneling through a Quantum Dot at Zero Magnetic Field

Paula Rojt,¹ Yigal Meir,^1,2 and Assa Auerbach³

¹Physics Department, Ben Gurion University, Beer Sheva, 84105, Israel
²The Ilse Katz Center for Meso- and Nanoscale Science and Technology, Ben Gurion University, Beer Sheva, 84105, Israel
³Physics Department, Technion, Haifa 32000, Israel

(Received 3 July 2002; published 27 November 2002)

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. ©2002 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v89/e256401
doi:10.1103/PhysRevLett.89.256401
PACS: 71.10.Pm, 73.21.La, 73.23.Hk, 73.63.Kv        Additional Information

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