41. In 1936 he earned a doctoral degree with his thesis on the infrared catastrophe in quantum electrodynamics . 42. In 1971 he defended his doctoral thesis on �The inelastic processes of quantum electrodynamics at high energies? 43. A recent development called non-relativistic quantum electrodynamics ( NRQED ) used this system as a proving ground. 44. He is best known for his work with Felix Bloch on the infrared problem in quantum electrodynamics . 45. The study of charged particles, and how their interactions are mediated by photons, is called quantum electrodynamics . 46. It gets into quantum electrodynamics I'm afraid. 47. The British-born physicist first made his mark at 25 by synthesizing three competing theories in quantum electrodynamics . 48. Decades earlier, spurious infinities had threatened to wreck the crown jewel of early 20th-century physics : quantum electrodynamics . 49. They occur in the quantum theory of light ( quantum electrodynamics ) and other bosonic quantum field theories. 50. In modern quantum physics, the electromagnetic field is described by the theory of quantum electrodynamics ( QED ).