| The development of laser technology in many areas of physics, created a huge im-pact. On the one hand makes the study of laser cooling and manipulation of matter at extremely low temperature system possible. Following the 1995 realization of Bose-condensed atoms, there has been through the Feshbach resonance, making the two atoms form weakly bound molecular Bose, and has achieved such a molecular Bose condensation. For Fermi atoms, which can be used to study the nature of superfluidity and the BCS-BEC crossover physics mechanism; while for Bose atoms, we can study the technology of two Bose condensates associated, transformation and other issues. On the other hand more and more high power laser, using high power laser plasma ac-celeration of charged particles is already a hot issue in the field. Laser targeting is an effective method for ion acceleration.At zero temperature conditions, because entropy is zero, a large number of parti-cles physics system will show the nature of order. Laser cooling techniques, can achieve ultra-low temperature. Of this ultra-low temperature physics, the laws of physics for the verification, accurate measurement, the areas of micro-manipulation has important significance. Since 1995, Bose-Einstein condensate to achieve since the study ultra-cold the rapid development of physical systems. Through the Feshbach resonance, the two Fermi atoms form weakly bound molecular Bose has achieved the Fermi atomic cohesion. The same technology is also used in atomic Bose realized Bose atoms weakly bound molecular Bose condensation. As the Zeeman effect, the spin of atoms in a mag-netic field which will have different Zeeman energy levels and Zeeman energy levels can be determined from the magnetic field adjustment. Therefore, the atoms in different spin energy gap, that is, the interaction potential between atoms with the magnetic field changes. Configuration of two atoms in different spin interaction potential between the different. Therefore there exists a critical magnetic field, so different configuration in-teraction potential equal, so can transform between different configurations. Magnetic field through the insulation of the linear regulator, can make all the atoms into a spin configuration. Scattering theory can be shown that there is potential interaction be-tween atoms weakly bound states, while temperatures are low, two different spin states of atoms can be bound to remain in this very long time. This makes the magnetic field by adjusting the spin of the atoms of two weak binding of the two-atom molecules way Feshbach resonance. For these many-body quantum systems, if starting from quantum mechanics, because the number of equations is proportional with the particle number, so it would be very difficult to solve. In the low temperature physical properties of the system will show an orderly, collective excitation. At this point the mean field method is a good approximation. Mean field method, the analytical results can be simple, can reveal some of the profound nature of the physical system. We use this mean field ap-proach is to analyze the nature of the physical system and compared with experiment. Electromagnetic interaction can produce a wealth of phenomena, there are a wide range of useful, but plasma is an ideal system of electromagnetic interaction. Human plasma experiments in the Langmuir (Irving Langmuir,1932 Nobel Chemistry Prize winner) on the ionized gas glow discharge phenomena. From the last century 50's, because of the high energy density material system research needs, people pay attention to the plasma. In the plasma system, there can be a very strong electric field, magnetic field, high-speed particle flow. These properties of plasma in controlled nuclear fusion, high-energy particle collision, space science and technology, and even medicine to remove the tumor and so on have important applications in many areas.Laser plasma interaction, can produce high-speed ion beam. Laser targeting to accelerate ions in several ways:the target after the pre-accelerated before the target prior to the acceleration, the acceleration of the former target. One target of the former ions are accelerated in recent years to accelerate the hot field of laser targeting. After years of research, in the ion acceleration has been established the basic model and theory. In order to effectively improve the ion acceleration energy and particle number, the current research in two directions, one laser, ultra-thin target, by using radiation pressure to accelerate to high energy ions. Another direction is to change the shape of the target, such as to target a concave, so the laser energy focused on the "focus" on. After the ion laser target shooting speed up the process can be fluid approach to the study. When the laser hit the target on the plasma after the target before contact with the laser part of the electrons in the laser electric field and magnetic field move forward, this acceleration can be attributed to ponderomotive force acceleration. These high- speed electron beam through the target in the process, through the collision interaction, heating plasma to target the electronics, ultimately makes the high electron temperature, and static electricity after the separation of the target electronic. The electron density of the decision by the Poisson's equation. Then, after the ion plasma target charge field began to move under expansion. Ion by the charge field forces generated by the vertical and the target surface, similar to fluid pressure in the fluid pressure generated. In fluid mechanics, if the fluid surface is designed to concave shape, then as pressure, will produce Rayleigh-Taylor Instability, and the occurrence of jet phenomena. Similar phenomena are dug into the concave target after the plasma will appear. This is the starting point of this paper. In fact, this phenomenon has been simulated jet saw. We need to do is to give a theoretical description, in order to more effectively through this jet to accelerate ions.
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