Abstract

VILLAGOMEZ-MANRIQUE, A.R.  and  CASTILLO-MUSSOT, M. del. Simulating negative temperatures by imposing wealth upper-bounds in exchanges. Rev. mex. fis. [online]. 2018, vol.64, n.1, pp.51-54. ISSN 0035-001X.

We impose an upper bound to the amount of agents wealth in binary exchanges, but when the upper bound is continuously lowered, then the entropy S decreases because the system exhibits more order. Furthermore, negative temperatures can mathematically obtained when the slope of the entropy as a function of the total energy (T = (dS/dE)-1) is negative.

Keywords : Temperature; entropy; econophysics.

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