Wire width and density dependence of the crossover in the peak of the static structure factor from 2k_F → 4k_F in one-dimensional paramagnetic electron gases

2022/11/29 by Ankush Girdhar, Girdhar, Ankush, Vinod Ashokan +7
Chemistry · Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Inorganic Fluorides and Related Compounds #Physics of Superconductivity and Magnetism #Quantum Gases (cond-mat.quant-gas) #Strongly Correlated Electrons (cond-mat.str-el)

paper · pdf · doi:10.48550/arxiv.2212.02225

openalex publication_date 2022/11/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We use the variational quantum Monte Carlo (VMC) method to study the wire width (b) and electron density (r_s) dependences of the ground-state properties of quasi-one-dimensional paramagnetic electron fluids. The onset of a quasi-Wigner crystal phase is known to depend on electron density, and the crossover occurs in the low density regime. We study the effect of wire width on the crossover of the dominant peak in the static structure factor from k=2k_F to k=4k_F. It is found that for a fixed electron density, in the charge structure factor the crossover from the dominant peak occurring at 2k_F to 4k_F occurs as the wire width decreases. Our study suggests that the crossover is due to interplay of both r_s and b

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