We reveal a divergent issue associated with the mean-field theory for Bose gases in optical lattices constructed by the widely used straightforward mean-field decoupling of the hopping term, where the corresponding mean-field Hamiltonian generally assumes no lower energy bound once the spatial dependence of the mean-field superfluid luau thank you
Abstract operation igloo white In the context of food transition, the agrifood sector has experienced increasingly strong demand for horticultural products.Fresh fruits and vegetables are mainly vehicles of microorganisms, including pathogens that cause human infections.Food safety and compliance with health standards in the fruits and vegetable va
We consider the questions of one value solvability of the nonlocal boundary value problem for a nonlinear ordinary integro-differential equation with a degenerate kernel and a reflective argument.The method of the degenerate kernel is developed for the case of considering ordinary integro-differential equation of the first order.After denoting the