Top Results for Quantum Theory

American theoretical physicist Julian Schwinger helped develop quantum electrodynamics, the quantum theory of interactions between light and electrically charged matter. His rigorous mathematical methods made it possible to obtain meaningful physical predictions from calculations troubled by infinit...

Max Planck was a German physicist whose groundbreaking work fundamentally shaped modern physics. He established quantum theory by introducing the concept of energy existing in discrete quanta – particles with specific amounts. This revolutionized understanding of light and matter. His proposed const...

Niels Bohr (1885-1962) made pivotal contributions to atomic structure and quantum mechanics. His model of the atom, incorporating quantized energy levels, explained the stability of atoms and the emission of light. Bohr's development of the Copenhagen interpretation of quantum mechanics, while contr...

John Bell was a prominent modern physicist specializing in theoretical physics and quantum mechanics. His 1964 theorem established a set of inequalities now known as Bell’s inequalities. These provide a framework for experimentally distinguishing between quantum phenomena and theories based on local...

Ettore Majorana was a prominent Italian theoretical physicist known for his groundbreaking work in quantum mechanics during the 1930s. He developed a mathematical framework predicting the existence of Majorana fermions – particles that are simultaneously their own antiparticles. This concept, initia...

David Bohm (1919-1992) was a prominent American theoretical physicist whose work significantly impacted our understanding of quantum mechanics. He developed the pilot-wave theory, offering an alternative interpretation to the standard Copenhagen view. His investigations into the Aharonov-Bohm effect...

Roy J. Glauber was a prominent American physicist specializing in optics and quantum mechanics. He is best known for his foundational work on the quantum theory of optical coherence, significantly advancing our understanding of light wave behavior. His research provided critical insights applicable...

Hugh Everett III was a 20th-century American physicist best known for developing the many-worlds interpretation of quantum mechanics. His 1957 doctoral thesis presented a radical solution to the measurement problem within quantum theory. This framework suggests that every quantum measurement causes...

Subir Sachdev is a theoretical physicist specializing in modern condensed matter physics. His research focuses on quantum phase transitions, particularly through the development of the Sachdev-Ye-Kitaev model. This work explores exotic states of quantum matter and has significant implications for un...

Arnold Sommerfeld was a prominent German physicist active throughout the 20th century. His work significantly advanced classical and quantum theory, particularly concerning atomic structure. He refined the Bohr model by incorporating quantum numbers to define electron orbits, offering a more accurat...

Arthur Compton was a prominent American physicist whose work significantly advanced understanding of quantum theory. His experiments with light scattering established Compton’s effect, demonstrating that X-rays behave as particles. This groundbreaking research earned him the 1927 Nobel Prize in Phys...