Coral reefs can undergo fast changes in their dominant life forms, a phenomenon referred to as phase shift.
Scientists have speculated on many possible causes of phase shift, but this study is the first one to clearly show that a rapid change in the dominant life forms on a coral reef is associated with man-made structures.
Figure 4 shows the measured phase shifts of the individual measurements as a function of particle number area density.
In the following section, we describe an interferometric experiment that measures the phase shift
Fiber optic gyros are optical rotation rate sensors that employ ring interferometry to analyze the phase shift of light waves within a closed optical path caused by motion (the Sagnac effect).
If the coil is rotated around its axis, light traveling in the direction of rotation has to propagate over a longer path than light travelling in the opposite direction, causing a phase shift between the two beams.
13] and  we know that the dynamical part stemming from the phase shifter PS2 is given by a weighted sum of the phase shifts [[phi].
which vanishes by an appropriate choice of phase shifts and transmission, i.