He introduced the (*) bra-ket notation used in quantum mechanics.
This physicist names "strings" that are singularities in the gauge potential. This physicist developed a differential equation that was first order in time to replace the second-order-in-time Klein-Gordon equation. This physicist developed the idea of canonical quantization by replacing Poisson brackets with commutators, a method that is detailed in his monograph The Principles of Quantum Mechanics. He introduced the (*) bra-ket notation used in quantum mechanics. This British guy developed a wave equation that accounted for special relativity in quantum mechanics. He names a set of statistics for fermions with Fermi. For 10 points, name this formulator of quantum mechanics who proposed the existence of the positron and thus antimatter.
This physicist names "strings" that are singularities in the gauge potential.
Paul Dirac [or P.A.M. Dirac; or Paul Adrien Maurice Dirac]