等离子体波背景下的光子Berry相位

Photon's Berry phase under background of plasma waves

利用光学度规将强激光脉冲激发的电子等离子体波描述为有效几何背景.借助于广义相对论中弯曲时空下的Maxwell方程组得到了探针光子在等离子体中电子等离子体波背景下(被处理为有效度规)所满足的运动方程及光子的Hamilton表达式.导出了电子等离子体波对光子Berry相位贡献的解析表达式并且对光子在真空中Berry相位的修正做了数值估算.

Electron plasma waves driven by high-power laser pulses are described as an effective geometric background by means of optical metrics.The motion equations of probe photons and Hamilton expression for photons under the background of electron plasma waves are derived via Maxwell equations in the curved spacetime.The contribution of electron plasma wave to photon＇s Berry phase is obtained and the corresponding modification to photon＇s Berry phase in vacuum spacetime is estimated under the conditions of the present experimental facility.