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2. Geometric phase - Wikipedia

   en.wikipedia.org/wiki/Geometric_phase

   Geometric phase around the conical intersection involving the ground electronic state of the C 6 H 3 F 3 + molecular ion is discussed on pages 385–386 of the textbook by Bunker and Jensen. [6] In the case of the Aharonov–Bohm effect, the adiabatic parameter is the magnetic field enclosed by two interference paths, and it is cyclic in the ...

3. Phase angle (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_angle_(astronomy)

   For some objects, such as the Moon (see lunar phases), Venus and Mercury the phase angle (as seen from the Earth) covers the full 0–180° range. The superior planets cover shorter ranges. For example, for Mars the maximum phase angle is about 45°. For Jupiter, the maximum is 11.1° and for Saturn 6°. [1]

4. Berry connection and curvature - Wikipedia

   en.wikipedia.org/wiki/Berry_connection_and_curvature

   In this case, the Berry phase corresponding to any given path on the unit sphere in magnetic-field space is just half the solid angle subtended by the path. The integral of the Berry curvature over the whole sphere is therefore exactly 2 π {\displaystyle 2\pi } , so that the Chern number is unity, consistent with the Chern theorem.

5. Phase (waves) - Wikipedia

   en.wikipedia.org/wiki/Phase_(waves)

   Conversely, a phase reversal or phase inversion implies a 180-degree phase shift. [ 2 ] When the phase difference φ ( t ) {\displaystyle \varphi (t)} is a quarter of turn (a right angle, +90° = π/2 or −90° = 270° = −π/2 = 3π/2 ), sinusoidal signals are sometimes said to be in quadrature , e.g., in-phase and quadrature components of a ...

6. Hannay angle - Wikipedia

   en.wikipedia.org/wiki/Hannay_angle

   The Hannay angle is defined in the context of action-angle coordinates.In an initially time-invariant system, an action variable is a constant. After introducing a periodic perturbation (), the action variable becomes an adiabatic invariant, and the Hannay angle for its corresponding angle variable can be calculated according to the path integral that represents an evolution in which the ...

7. US senators seek Turkey sanctions, citing military action in ...

   www.aol.com/news/us-senators-seek-turkey...

   Two U.S. senators introduced bipartisan legislation on Friday that would impose sanctions on Turkey, citing concerns over military action by that country or groups that it backs, in northern Syria.

8. Phase curve (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_curve_(astronomy)

   In astronomy, a phase curve describes the brightness of a reflecting body as a function of its phase angle (the arc subtended by the observer and the Sun as measured at the body). The brightness usually refers the object's absolute magnitude , which, in turn, is its apparent magnitude at a distance of one astronomical unit from the Earth and Sun.

9. Drones banned over 'critical infrastructure' sites in New ...

   www.aol.com/news/drones-banned-over-critical...

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