Does an ideal uniform 2D Bose gas undergo Bose-Einstein condensation at non-zero temperature $T > 0$?
(A)
No, because the thermal particle integral diverges at low energies for finite $\mu < 0$
(B)
Yes, with the same $T_c$ as 3D
(C)
Yes, if spin > 0
(D)
Yes, at $T_c \to \infty$