# Comment on \’ Thermodynamics of a One- Dimensional Ideal Gas with fractional Exclusion Statistics \’

### Alain Dasnieres De Veigy 1, Stéphane Ouvry 1

#### Physical Review Letters 75 (1995) 352

In a recent letter -Phys. Rev. Lett. 73, 3331 (1995)-, the conclusion was reached that, in the one-dimensional Calogero model, only the second virial coefficient is affected by the statistical parameter $\\alpha$, where $\\alpha$ is related to the coupling constant $\\kappa/ x_{ij}^2$ of the Calogero interaction by $\\kappa=\\alpha(\\alpha+1)$. We argue that it is not so, i.e. all virial coefficients are affected, if the thermodynamic limit is properly taken.

• 1. Division de Physique Théorique, IPN,
Université Paris XI - Paris Sud