In a cafe at CERN in 1992, three physicists realized they disagreed about how many constants are needed to describe all of nature. A recent paper suggests only one – time – is necessary.

We consider Minkowski spacetime, the set of all point-events of spacetime under the relation of causal accessibility. That is, x can access y if an electromagnetic or (slower than light) mechanical ...

Philosophy of Science, Vol. 53, No. 1 (Mar., 1986), pp. 1-30 (30 pages) Minkowski geometry is axiomatized in terms of the asymmetric binary relation of optical connectibility, using ten first-order ...

Loop corrections to unequal-time correlation functions in Minkowski spacetime exhibit secular growth due to a breakdown of time-dependent perturbation theory. In this thesis, we study the ...

Noncommutative Quantum Field Theory represents an ambitious extension of standard quantum field theory that incorporates a fundamental noncommutativity in the structure of spacetime. In these models, ...

Metamaterials--nanoengineered structures designed for precise control and manipulation of electromagnetic waves--have enabled such innovations as invisibility cloaks and super-resolution microscopes.