scholarly journals Zero-Temperature Equation of State of a Two-Dimensional Bosonic Quantum Fluid with Finite-Range Interaction

2019 ◽  
Vol 4 (1) ◽  
pp. 20 ◽  
Author(s):  
Andrea Tononi

We derive the two-dimensional equation of state for a bosonic system of ultracold atoms interacting with a finite-range effective interaction. Within a functional integration approach, we employ a hydrodynamic parameterization of the bosonic field to calculate the superfluid equations of motion and the zero-temperature pressure. The ultraviolet divergences, naturally arising from the finite-range interaction, are regularized with an improved dimensional regularization technique.

2021 ◽  
pp. 113031
Author(s):  
Fernanda Pinzan ◽  
Mateus Urias Cerdeira Braga ◽  
Esdras Penêdo de Carvalho ◽  
Marcus Vinicius Pereira ◽  
Leonardo Hadlich de Oliveira ◽  
...  

1999 ◽  
Vol 08 (03) ◽  
pp. 363-371 ◽  
Author(s):  
KONSTANTIN G. ZLOSHCHASTIEV

The spherically symmetric thin shells of the macroscopically stable quark-gluon matter are considered within the frameworks of the bag model and theory of discontinuities in general relativity. The equation of state for the two-dimensional matter is suggested, and its features are discussed. The exact equations of motion of such shells are obtained. Distinguishing the two cases, circumstellar and microscopical shells, we calculate the parameters of equilibrium configurations, including the conditions of decay (deconfinement).


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