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The Berezinskii–Kosterlitz–Thouless (BKT) transition is a phase transition of the two-dimensional (2-D) XY model in statistical physics. It is a transition from bound vortex-antivortex pairs at low temperatures to unpaired vortices and anti-vortices at some critical temperature. The transition is named for condensed matter physicists Vadim ...
Selection rule. In physics and chemistry, a selection rule, or transition rule, formally constrains the possible transitions of a system from one quantum state to another. Selection rules have been derived for electromagnetic transitions in molecules, in atoms, in atomic nuclei, and so on. The selection rules may differ according to the ...
Transitions Volume 2 is a DJ mix compilation album of tech house music by John Digweed, released by Renaissance Records. Track listing
F9: The Fast Saga (Original Motion Picture Score) is the film score album of the 2021 film of the same name. The score was released by Back Lot Music on July 2, 2021, with a total of 44 tracks, and 114 minutes and 16 seconds of music. The score was written and composed by Brian Tyler, who also wrote and composed the musical score for the third ...
When the state transition and observation models—that is, the predict and update functions and —are highly nonlinear, the extended Kalman filter can give particularly poor performance. [ 64 ] [ 65 ] This is because the covariance is propagated through linearization of the underlying nonlinear model.
A dissolve transition between two still images. In the post-production process of film and video editing, a dissolve (sometimes called a lap dissolve) is a type of film transition in which one sequence fades over another. The terms fade-out (also called fade to black) and fade-in are used to describe a transition to and from a blank image.
A film transition is a technique used in the post-production process of film editing and video editing by which scenes or shots are combined. Most commonly this is through a normal cut to the next shot. Most films will also include selective use of other transitions, usually to convey a tone or mood, suggest the passage of time, or separate ...
Hydrogen line. The hydrogen line, 21 centimeter line, or H I line[a] is a spectral line that is created by a change in the energy state of solitary, electrically neutral hydrogen atoms. It is produced by a spin -flip transition, which means the direction of the electron's spin is reversed relative to the spin of the proton.