Lighting Through A Wall Experiment
The alps collaboration runs a light shining through a wall lsw experiment to search for photon oscillations into weakly interacting sub ev particles wisps inside of a superconducting hera dipole magnet at the site of desy.
Lighting through a wall experiment. To leading order we find that when the photon frequency ωis very close to the axion mass m there is a threshold cusp. In modern physics the double slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles. The idea behind the double slit experiment is that even if the photons are sent through the slits one at a time there s still a wave present to produce the interference pattern. And two recent optical laser lsw experiments have reported preliminary results.
At first glance this sounds crazy. Several different calculational methods are employed and compared and in all cases we retain a nonzero axion mass. Recently axionlike particle search has received renewed interest. In particular several groups have started light shining through a wall experiments based on magnetic field and laser both continuous which is very demanding in terms of detector background.
The experiment is to search for particles that can shine light through a wall. In this paper we have described and characterized our apparatus and demonstrated the data analysis procedures. Nevertheless there are quite a number of experimental collaborations around. Moreover it displays the fundamentally probabilistic nature of quantum mechanical phenomena.
Like the wimps the suspected particle does not belong to the standard model of particle physics nor is it clear that it actually exists. We present here the 2sigma limits obtained so far with our novel setup consisting of a pulsed magnetic field and a pulsed laser. However very feeble gravitational and electroweak effects allow for this exotic possibility. An x ray version of this experiment has recently been proposed by rabadán et al.
Unfortunately with present and near future technologies the opportunity to observe light shining through walls via these effects is completely out of question. The wavy line indicates the photon field and the dashed line the axion field. Shining light through walls. Light shining through a wall setup.