Localization Transition in a Ballistic Quantum Wire

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dc.creatorSteinberg, H.
dc.creatorAuslaender, O. M.
dc.creatorYacoby, A.
dc.creatorQian, J.
dc.creatorFiete, G. A.
dc.creatorTserkovnyak, Y.
dc.creatorHalperin, B. I.
dc.creatorBaldwin, K. W.
dc.creatorPfeiffer, L. N.
dc.creatorWest, K. W.
dc.date2005-06-30
dc.date.accessioned2026-07-07T06:29:15Z
dc.date.available2026-07-07T06:29:15Z
dc.descriptionThe many-body wave-function of an interacting one-dimensional electron system is probed, focusing on the low-density, strong interaction regime. The properties of the wave-function are determined using tunneling between two long, clean, parallel quantum wires in a GaAs/AlGaAs heterostructure, allowing for gate-controlled electron density. As electron density is lowered to a critical value the many-body state abruptly changes from an extended state with a well-defined momentum to a localized state with a wide range of momentum components. The signature of the localized states appears as discrete tunneling features at resonant gate-voltages, corresponding to the depletion of single electrons and showing Coulomb-blockade behavior. Typically 5-10 such features appear, where the one-electron state has a single-lobed momentum distribution, and the few-electron states have double-lobed distributions with peaks at $\pm k_F$. A theoretical model suggests that for a small number of particles (N<6), the observed state is a mixture of ground and thermally excited spin states.
dc.description10 pages, 4 figures, 1 table
dc.identifierhttps://arxiv.org/abs/cond-mat/0506812
dc.identifierhttp://arxiv.org/abs/cond-mat/0506812
dc.identifierPhys. Rev. B 73, 113307 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.113307
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97962
dc.subjectMesoscale and Nanoscale Physics
dc.titleLocalization Transition in a Ballistic Quantum Wire
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