  We calculate the ground-state energy, pair correlation function, static
structure factor, and momentum density of the one-dimensional electron fluid at
high density using variational quantum Monte Carlo simulation. For an
infinitely thin cylindrical wire the predicted correlation energy is found to
fit nicely with a quadratic function of coupling parameter $r_s$. The extracted
exponent $\alpha$ of the momentum density for $k\sim k_F$ is used to determine
the Tomonaga-Luttinger parameter $K_\rho$ as a function of $r_s$ in the
high-density regime for the first time. We find that the simulated static
structure factor and pair correlation function for infinitely thin wires agree
with our recent high-density theory [K. Morawetz et al., Phys. Rev. B 97,
155147 (2018)].
