Probing 1D super-strongly correlated dipolar quantum gases

One-dimensional (1D) dipolar quantum gases are characterized by a very special condition where super-strong correlations occur to significantly affect the static and dynamical low-energy behavior.
Laser Phys. 19, 554 (2009) / HAL Id:ensl-00517334 (2010)

This behavior is accurately described by the Luttinger Liquid theory with parameter K < 1.

Dipolar Bose gases are routinely studied in laboratory with Chromium atoms. On the other hand, 1D realizations with molecular quantum gases can be at reach of current experimental expertises, allowing to explore such extreme quantum degenerate conditions which are the bottom line for designing technological devices.

Aim of the present contribution is to focus on the possible probes expected to signal the reach of Luttinger-Liquid behavior in 1D dipolar gases.

S(q) in dimensionless units for a dipolar gas with N = 40 particles and different values of nr0 = 0.01, 50, 100 and 1000. Decreasing slopes as q → 0 and the emergence of additional peaks correspond to increasing nr0 values.