First- and second-order superfluid--Mott-insulator phase transitions of spin-1 bosons with coupled ground states in optical lattices
K. V. Krutitsky, M. Timmer, R. Graham
Abstract
We investigate the superfluid--Mott-insulator quantum phase transition of spin-1 bosons in an optical lattice created by pairs of counterpropagating linearly polarized laser beams, driving an Fg=1 to Fe=1 internal atomic transition. The whole parameter space of the resulting two-component Bose-Hubbard model is studied. We find that the phase transition is not always second order as in the case of spinless bosons, but can be first order in certain regions of the parameter space. The calculations are done in the mean-field approximation by means of exact numerical diagonalization as well as within the framework of perturbaton theory.
Create a lesson
Related papers
Revealing New Leakage Paths in GAAFETs using Predictive First-Principles Simulations
Denis Mamaluy, Juan P. Mendez, Coleman Cariker et al.
Ultrafast laser-stimulated field emission from a metal: a non-equilibrium Green's functions approach
Luciano Jacopo D'Onofrio, Adolfo Avella, Martin Eckstein
Three-dimensional dopant distribution from a single, out-of-focus spectroscopic image
Michael Deimetry, Timothy Petersen, Matthew Weyland et al.
A nonclassical law of the wall in superfluid helium-4
Mikai Hulse, Musfequs Salehin, Sosuke Inui et al.
Progress and Prospect of AI in ARPES Workflow
Sandy Adhitia Ekahana, Aalok Tiwari, Pratik Saud et al.
Magnon Polarization Textures and Transport in Antiferromagnets and Altermagnets
Konstantin S. Denisov, Igor Žutić