Ground-state properties of the one-dimensional electron liquid

Lee, R. M. and Drummond, Neil (2011) Ground-state properties of the one-dimensional electron liquid. Physical review B, 83 (24): 245114. ISSN 1550-235X

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We present calculations of the energy, pair-correlation function (PCF), static structure factor (SSF), and momentum density (MD) for the one-dimensional electron gas using the quantum Monte Carlo method. We are able to resolve peaks in the SSF at even-integer multiples of the Fermi wave vector, which grow as the coupling is increased. Our MD results show an increase in the effective Fermi wave vector as the interaction strength is raised in the paramagnetic harmonic wire; this appears to be a result of the vanishing difference between the wave functions of the paramagnetic and ferromagnetic systems. We have extracted the Luttinger liquid exponent from our MDs by fitting to data around kF, finding good agreement between the exponent of the ferromagnetic infinitely thin wire and the ferromagnetic harmonic wire.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
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©2011 American Physical Society
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Deposited On:
23 Jan 2012 10:03
Last Modified:
12 Jun 2024 00:06