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cond-mat2001★ 28 cited
Ground State Pressure and Energy Density of a Homogeneous Bose Gas in Two Dimensions
Jens O. Andersen
We consider an interacting homogeneous Bose gas at zero temperature in two spatial dimensions. The properties of the system can be calculated as an expansion in powers of g, where…
cond-mat1994★ 21 cited
Magnetization in 2+1 dimensional QED at Finite Temperature and Density
Jens O. Andersen, Tor Haugset
We consider Dirac fermions moving in a plane with a static homogeneous magnetic field orthogonal to the plane. We calculate the effective action at finite temperature and density.…