The Propagation Characteristic Of Waves In Quantum Plasmas

The semi-classical kinetic model, the non-relativistic quantum kinetic model, and the relativistic quantum kinetic model are respectively used to investigate the propagation characteristic of waves (electromagnetic waves and electron plasma waves) in quantum plasmas (especially in high energy density plasmas). The main contents of this paper are summarized as follows:(1) The propagation characteristics of electromagnetic waves and electron plasma waves in non-relativistic quantum plasmas are investigated by the semi-classical kinetic model and the non-relativistic quantum kinetic model.(2) The propagation characteristics of electromagnetic waves and electron plasma waves in high energy density plasmas are investigated by the relativistic quantum kinetic model based on the covariant Wigner function approach.(3) The interaction between the intense laser pulse and relativistic quantum plasmas is investigated by the relativistic quantum hydrodynamic equation. The relativistic quantum effects on the physical process of laser wakefield accelerations is discussed.(4) The propagation of X-rays in the surface magnetoplasmas of pulsars is investigated by effective matric theory. Considering the QED vacuum effects induced by the super-strong magnetic field of pulsars and the hydrodynamic effects of the outflowing magnetoplasmas, the modification of the gravitational redshift of X-ray burst is obtained.Our main innovation findings up as following several points:(1) The interaction between intense laser pulses and plasmas is investigated in the relativistic quantum regime for the first time. The relativistic effects induced by intense laser pulses and the quantum effects produced by dense Fermi plasmas are considered in the physical process of laser wakefiled accelerations for the first time. Based on the relativistic quantum hydrodynamic equations and the Poisson equation, the perturbation of electron number density and electric field of laser wakefields containing relativistic quantum effects are derived. The contribution of relativistic quantum effects to the electron number density and the electric field of laser wakefields are obtained by comparing with the classical results. It is found that quantum effects weaken laser wakefield and the accelerating field of laser wakefield accelerator, which is classical manifestation of quantum decoherence.(2) The Landau damping of electron plasma waves in high energy density plasmas is investigated for the first time. In high energy density plasmas produced by intense laser pulses, electrons are degenerated and obey the Fermi-Dirac distribution. The electron degeneracy leads to consider the Fermi statistics pressure and the quantum Bohm potential. Meanwhile, electrons are relativistic due to driving by intense laser pulses. Therefore, the relativistic quantum effects should be considered in the propagation of waves in high energy density plasmas. Using a kinetic model based on the framework of the relativistic quantum theory established by the covariant Wigner function and Dirac equation, the Landau damping of electron plasma waves in high energy density plasmas are obtained for the first time.(3) The QED vacuum effects induced by the super-strong magnetic field of pulsars and the hydrodynamic effects of outflowing magnetoplasmas are described as some geometry by the effective metric theory the first time. So the propagation of x-ray bursts in magnetoplasma of pulsars can be described as X-ray bursts propagating in an effective space characterized by Gordon metric. The modification of gravitational redshift, attributed to the QED vacuum effects and the hydrodynamic effects of outflowing magnetoplasmas, is obtained and it is shown that the modification is of redshift and can reach the same magnitude as the gravitational redshift for ordinary pulsars.