What is the significance of amplitude in quantum field theory and string theory?

Apr 6, 2015 ... This is the connection between the Lagrangian and Eulerian variation in a small-amplitude wave, neglecting terms of order |ξ|2 and higher. The ... The magnitude of the displacement of a wave from a mean value. An ocean wave has an amplitude equal to the vertical distance from still-water level to wave ... Dec 12, 2015 ... The local finite-amplitude wave activity (LWA) of Huang and Nakamura (2015) is introduced as a diagnostic of the 500 hPa geopotential height for characterizing ... At Amplitude, we have focused on building analytics architecture that can cost-effectively handle massive scale without sacrificing query speed. We want our ... Jul 3, 2018 ... Sound moves through a medium such as air or water as waves. It is measured in terms of frequency and amplitude. ... wave motion. As this happens, a point on the water surface describes a circle with a diameter that is equal to the wave amplitude (Figure 17.3). This motion ... Recent development of a finite-amplitude local wave activity (FALWA) theory by Nakamura and collaborators enables comprehensive analysis of the dynamics of ... Here,. x = displacement of wave (meter); A = amplitude; ω = angular frequency (rad/s); t = time period ... Jan 1, 2013 ... ... amplitude and found in good agreement. The phase shift resulting from collision is found to be dependent on wave amplitude, which is in a ... Upper-tropospheric Rossby wave packets (RWPs) are important dynamical features, because they are often associated with weather systems and sometimes act as ...