  It is shown that quantum entanglement is the only force able to maintain the
fourth state of matter, possessing fixed shape at an arbitrary volume.
Accordingly, a new relativistic Schrodinger equation is derived and transformed
further to the relativistic Bohmian mechanics via the Madelung transformation.
Three dissipative models are proposed as extensions of the quantum relativistic
Hamilton-Jacobi equation. The corresponding dispersion relations are obtained.
