PARTICLE EXCITATIONS IN THE ANYON GAS AT ZERO AND FINITE-TEMPERATURE

We present an effective electromagnetic Lagrangian in a charged anyon gas at arbitrary temperature, which enables us to study the electromag netic properties of the anyonic system at both zero and finite tempera ture (i.e., in the superconductive and the normal phases) with equal f acility. The temperature dependences of magnetic and dielectric permea bilities are derived. It is shown directly how the particle excitation s are ''dressed'' to become electromagnetic vortices. The induced quan tum numbers of those excitations are found at arbitrary T.