Algebraic structure of general electromagnetic fields and energy flow

作者：Hacyan Shahen^*

来源：Annals of Physics, 2011, 326(8): 2174-2185.

DOI：10.1016/j.aop.2011.04.006

• Electromagnetic field
• Algebraic structure
• Energy-momentum
• Bessel beams

The algebraic structures of a general electromagnetic field and its energy-momentum tensor in a stationary space-time are analyzed. The explicit form of the reference frame in which the energy of the field appears at rest is obtained in terms of the eigen-vectors of the electromagnetic tensor and the existing Killing vector. The case of a stationary electromagnetic field is also studied and a comparison is made with the standard short-wave approximation. The results can be applied to the general case of a structured light beams, in flat or curved spaces. Bessel beams are worked out as example.

• 出版日期2011-8