The school is primarily aimed at PhD students and postdocs in the field. Les Houches Physics School has a limited capacity of ~55 participants and interested parties are therefore invited to apply to participate using the application form below. The successful candidates will be informed shortly after the deadline, and will receive instructions on how to pay and thereby confirm their participation. The expected price is 700 EUR for students and 900 EUR for others. These prices may be lowered once the full amount of sponsor support is known. The fee covers all expenses at the school (full board, accommodation and the school). Swansea University has kindly agreed to fund some travel grants/fee waivers to the school. If you wish to apply for one of these, please clearly indicate this in the form and make sure the reference letter supports this request. ** To register - practical information: Those who are not having a CERN computer account, can create a light-weight account following the instructions on https://account.cern.ch/account/Externals/.