# Equations of state from individual one-dimensional Bose gases

We trap individual 1D Bose gases and obtain the associated equation of state by combining calibrated confining potentials with *in situ* density profiles. Our observations agree well with the exact Yangâ€“Yang 1D thermodynamic solutions under the local density approximation. We find that our final 1D system undergoes inefficient evaporative cooling that decreases the absolute temperature, but monotonically reduces a degeneracy parameter.

Equations of state from individual one-dimensional Bose gases; F. Salces-Carcoba, C. J. Billington, A. Putra, Y. Yue, S. Sugawa, and I. B. Spielman; New Journal of Physics 20 113032 (2018). doi:10.1088/1367-2630/aaef9b

http://iopscience.iop.org/article/10.1088/1367-2630/aaef9b/meta