Electromagnetic Coupling to Pseudoscalar Fields

If axions exist they will couple the radiation field to a static magnetic field with a coupling proportional to E.B. HiPER can generate static magnetic fields of many gigagauss and electric fields larger than any other optical laser. Axion coupling can be probed to many orders of magnitude weaker than existing experiments. The opportunity to create large scale (of the order 1 m) intense magnetic fields (of the order 100 T), could also spur new experimental efforts in constraining the properties of light pseudo-scalars such as the axion. Thus, we believe that the possibility of using HiPER to create intense magnetic fields should be investigated further, as HiPER also will be able to provide a unique multi-beam facility.