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The Friedmann–Lemaître–Robertson–Walker metric is a solution to the Einstein equations in General Relativity. The FRW universe is a solution that represents an expanding universe with a time-dependent…
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the study of optical fibers, which are thin pieces of high quality optical materials which are able to act as a waveguide for some frequencies of light. This waveguide or 'light pipe'…
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In theoretical physics, Seiberg–Witten theory is a theory that determines an exact low-energy effective action (for massless degrees of freedom) of a N=2 supersymmetric gauge theory—namely the metric …
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A topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes topological invariants.
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