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Over the past half century, a great number of Bell test experiments have been conducted. The experiments are commonly interpreted to rule out local hidden-variable theories, and in 2015 an experiment was performed that is not subject to either the locality loophole or the detection loophole (Hensen et al. [10]). An experiment free of the ...
The Leggett–Garg inequality, [1] named for Anthony James Leggett and Anupam Garg, is a mathematical inequality fulfilled by all macrorealistic physical theories.Here, macrorealism (macroscopic realism) is a classical worldview defined by the conjunction of two postulates, of which the second has actually nothing to do with “macro-realism”: [1]
Bell's theorem is a term encompassing a number of closely related results in physics, all of which determine that quantum mechanics is incompatible with local hidden-variable theories, given some basic assumptions about the nature of measurement.
The monogamy of bipartite entanglement was established for tripartite systems in terms of concurrence by Valerie Coffman, Joydip Kundu, and William Wootters in 2000. [1] In 2006, Tobias Osborne and Frank Verstraete extended this result to the multipartite case, proving the CKW inequality.
The theory of the strong interaction (i.e. quantum chromodynamics, QCD), to which many contributed, acquired its modern form in 1973–74 when asymptotic freedom was proposed [23] [24] (a development that made QCD the main focus of theoretical research) [25] and experiments confirmed that the hadrons were composed of fractionally charged quarks.
where = is the reduced Planck constant.. The quintessentially quantum mechanical uncertainty principle comes in many forms other than position–momentum. The energy–time relationship is widely used to relate quantum state lifetime to measured energy widths but its formal derivation is fraught with confusing issues about the nature of time.
Modified Newtonian dynamics (MOND) is a theory that proposes a modification of Newton's laws to account for observed properties of galaxies.Modifying Newton's law of gravity results in modified gravity, while modifying Newton's second law results in modified inertia.
The proposed theories of physics are usually relatively new theories which deal with the study of physics which include scientific approaches, means for determining the validity of models and new types of reasoning used to arrive at the theory. However, some proposed theories include theories that have been around for decades and have eluded ...