Theory of momentum resolved tunneling into a short quantum wire
arXiv:cond-mat/0501684 · doi:10.1103/PhysRevB.72.045315
Abstract
Motivated by recent tunneling experiments in the parallel wire geometry, we calculate results for momentum resolved tunneling into a short one-dimensional wire, containing a small number of electrons. We derive some general theorems about the momentum dependence, and we carry out exact calculations for up to N=4 electrons in the final state, for a system with screened Coulomb interactions that models the situation of the experiments. We also investigate the limit of large using a Luttinger-liquid type analysis. We consider the low-density regime, where the system is close to the Wigner crystal limit, and where the energy scale for spin excitations can be much lower than for charge excitations, and we consider temperatures intermediate between the relevant spin energies and charge excitations, as well as temperatures below both energy scales.
arXiv comment19 pages, 13 figures, clarified text in a few points, added 1 figure, updated references
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Cited by in corpus (38)
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