68,132 research outputs found
The column vector calculus for Thermo Field Dynamics of relativistic quantum fields
A formalism is discussed which simplifies the calculation of Feynman diagrams
at finite temperature.Comment: 10 pages, GSI-Preprint 93-32 (1993
Thermo Field Dynamics and Kinetic Coefficients of a Charged Boson Gas
Thermo Field Dynamics for inhomogeneous systems is generalized to quantum
fields with a continuous single-particle mass spectrum. The modification of the
hamiltonian in states with a local thermal Bogoliubov symmetry is used to
calculate thermal conductivity and diffusion coefficient of pions interacting
with hot, compressed nuclear matter.Comment: 27 pages in LaTeX GSI-Preprint 93-45 (1993
The eurozone's critical design flaws
A European Monetary Fund and governance mechanisms with bite would address the problems underlying the current crisis
HBT with Space- vs. Time-like Hydrodynamic Freezeout
Bose-Einstein correlations in relativistic heavy ion collisions and their
dependence on the freeze-out condition in hydrodynamic models is compared to
time-like freeze-out, where particles are emitted away only from the surface,
i.e. space- vs. time-like freeze-out. The corresponding HBT radii are
calculated for the two models emphasizing the difference in the outward HBT
radius.Comment: Proc. of hydrodynamics workshop, may 12-16, Trent
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