*Article* **Thermodynamic and Transport Properties of Equilibrium Debye Plasmas**

#### **Gianpiero Colonna \* and Annarita Laricchiuta \***

CNR Istituto per la Scienza e Tecnologia dei Plasmi (ISTP) Bari, via Amendola 122/D, 70126 Bari, Italy **\*** Correspondence: gianpiero.colonna@cnr.it (G.C.); annarita.laricchiuta@cnr.it (A.L.)

Received: 20 December 2019; Accepted: 18 February 2020 ; Published: 20 February 2020

**Abstract:** The thermodynamic and transport properties of weakly non-ideal, high-density partially ionized hydrogen plasma are investigated, accounting for quantum effects due to the change in the energy spectrum of atomic hydrogen when the electron–proton interaction is considered embedded in the surrounding particles. The complexity of the rigorous approach led to the development of simplified models, able to include the neighbor-effects on the isolated system while remaining consistent with the traditional thermodynamic approach. High-density conditions have been simulated assuming particle interactions described by a screened Coulomb potential.

**Keywords:** Debye plasmas; thermodynamics; pressure-ionization; electrical conductivity
