1D to 3D beyond-mean-field dimensional crossover in mixture quantum droplets

Understand

The existence of quantum droplets in binary Bose-Einstein condensate mixtures rely on beyondmean field effects, competing with mean-field effects.

• Interestingly, the beyond-mean field effect is changing from repulsive in 3D to attractive in 1D leading to drastically different behaviors.
• We study in detail the crossover between these two regimes in a quasi-1D regime where the radial wavefunction is frozen.
• Quantum droplets exist for all values and sign of the mean-field interaction.