physics

Julian Schwinger and Quantum Electrodynamics

Julian Schwinger and Quantum Electrodynamics

On February 12, 1918, US-american theoretical physicist and Nobel Laureate Julian Seymour Schwinger was born. Schwinger is best known for his work on the theory of quantum electrodynamics (QED), in particular for developing a relativistically invariant perturbation theory, and for renormalizing QED to one loop order. Julian Seymour Schwinger was…

Rolf Landauer and the Landauer Principle

On February 4, 1927, German-American physicist Rolf William Landauer was born. Landauer made important contributions in diverse areas of the thermodynamics of information processing, condensed matter physics, and the conductivity of disordered media. He is probably best known for the formulation of the eponymous Landauer Principle concerning the energy used…
Stephen Hawking and the Hairy Black Holes

Stephen Hawking and the Hairy Black Holes

On January 8, 1942, English theoretical physicist, cosmologist and author Stephen William Hawking was born. Hawking’s principal areas of research are theoretical cosmology and quantum gravity. His scientific works include a collaboration with Roger Penrose on gravitational singularity theorems in the framework of general relativity, and the theoretical prediction that…
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