Exotic atom to weak, electromagnetic and gravitational forces, muonic atoms are governed to very high precision by the electromagnetic interaction. Since a muon is more massive than an electron, the Bohr orbits are closer to the nucleus in a muonic atom than in an ordinary atom, and corrections due to quantum electrodynamics are more important. Study of muonic atoms' energy levels as well as transition rates from excited states to the ground state therefore provide experimental tests of quantum electrodynamics. Muon-catalyzed fusion is a technical application of muonic atoms. A "hadronic atom" is an atom in which one or more of the
Atom Bank Atom Bank Atom Bank is a digital financial company and challenger bank. It provides banking services through a smartphone app. It has no physical outposts. As a smartphone app-based bank, it does not have a traditional online banking outlet, as users must use the application to bank. Atom first secured its banking license in June 2015. The company publicly launched in April 2016. In March 2017 it raised £83 million in venture funding, which brought its total funding to over £200 million. On 9 March 2017, the bank experienced over 5,000 new customer signups in one day, a new record.