Physics

Arrow of Time is the one-way direction of increasing entropy required by the second law of thermodynamics. This is also known as the “thermodynamic arrow.”…

Philosophy of Physics is less an academic discipline—though it is that—than an intellectual frontier across which theoretical physics and modern Western philosophy have been informing.…

Objective Collapse Theory is realism about the wave-function, where all branches are equally real. It also known as quantum mechanical spontaneous localization models (QMSL), are…

Absolute Time and Space is owed to individuals like Sir Isaac Newton, a man whose theories came to form the basis of modern physics. Though…

Oscillator Linewidth is a measure of the width of the band of frequencies of radiation emitted or absorbed in an atomic or molecular transition. The…

Multiple-Prism Dispersion Theory is extended to enable evaluation of the overall outward and return pass dispersion of multiple-prism-grating combinations. It was given by Newton in…

Beam Divergence of a laser beam is a measure for how fast the beam expands far from the beam waist. Beams with very small divergence,…

Laser Linewidth it is the width of the power spectral density of the emitted electric field in terms of frequency, wavenumber or wavelength. The linewidth…

Atomic Coherence and image processing is a rapidly developing field in physics. Resonant atomic media provide a very convenient platform for proof-of-principle experiments and modelling…

Transactional Interpretation is the transaction describing a quantum event as an exchange of advanced and retarded waves, as implied by the work of Wheeler and…

Quantum Indeterminacy is usually mentioned when one is concerned with the predictability of events. It refers to the same fundamental physics phenomenon as does the…

Copenhagen Interpretation is the principle known as complementarity, which that the wave and particle nature of objects can be regarded as complementary aspects of a…