Burovski, EMachta, JProkof'ev, NikolaiSvistunov, Boris2024-04-262024-04-262006-01https://hdl.handle.net/20.500.14394/40491This is the prepublished version harvested from ArXiv. The published version is located at http://prb.aps.org/abstract/PRB/v74/i13/e132502Simulation results are reported for the critical point of the two-component ϕ4 field theory. The correlation-length exponent is measured to high precision with the result ν=0.6717(3). This value is in agreement with recent simulation results [Campostrini et al., Phys. Rev. B 63, 214503 (2001)] and marginally agrees with the most recent space-based measurements of the superfluid transition in 4He [Lipa et al., Phys. Rev. B 68, 174518 (2003)].Physical Sciences and Mathematicsarticle