enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Orbital angular momentum multiplexing - Wikipedia

    en.wikipedia.org/wiki/Orbital_angular_momentum...

    An experiment in 2011 demonstrated OAM multiplexing of two incoherent radio signals over a distance of 442 m. [5] It has been claimed that OAM does not improve on what can be achieved with conventional linear-momentum based RF systems which already use MIMO, since theoretical work suggests that, at radio frequencies, conventional MIMO techniques can be shown to duplicate many of the linear ...

  3. Angular momentum - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum

    The trivial case of the angular momentum of a body in an orbit is given by = where is the mass of the orbiting object, is the orbit's frequency and is the orbit's radius.. The angular momentum of a uniform rigid sphere rotating around its axis, instead, is given by = where is the sphere's mass, is the frequency of rotation and is the sphere's radius.

  4. Angular momentum operator - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum_operator

    The classical definition of angular momentum is =.The quantum-mechanical counterparts of these objects share the same relationship: = where r is the quantum position operator, p is the quantum momentum operator, × is cross product, and L is the orbital angular momentum operator.

  5. Spacecraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Spacecraft_flight_dynamics

    The specific angular momentum of any conic orbit, h, is constant, and is equal to the product of radius and velocity at periapsis. At any other point in the orbit, it is equal to: [ 13 ] h = r v cos ⁡ φ , {\displaystyle h=rv\cos \varphi ,} where φ is the flight path angle measured from the local horizontal (perpendicular to r .)

  6. Orbital angular momentum of free electrons - Wikipedia

    en.wikipedia.org/wiki/Orbital_angular_momentum...

    Electrons in free space can carry quantized orbital angular momentum (OAM) projected along the direction of propagation. [1] This orbital angular momentum corresponds to helical wavefronts, or, equivalently, a phase proportional to the azimuthal angle. [2] Electron beams with quantized orbital angular momentum are also called electron vortex beams.

  7. Orbital angular momentum of light - Wikipedia

    en.wikipedia.org/wiki/Orbital_angular_momentum...

    The orbital angular momentum of light (OAM) is the component of angular momentum of a light beam that is dependent on the field spatial distribution, and not on the polarization. OAM can be split into two types. The internal OAM is an origin-independent angular momentum of a light beam that can be associated with a helical or twisted wavefront.

  8. Angular momentum of light - Wikipedia

    en.wikipedia.org/wiki/Angular_momentum_of_light

    The total angular momentum of light consists of two components, both of which act in a different way on a massive colloidal particle inserted into the beam. The spin component causes the particle to spin around its axis, while the other component, known as orbital angular momentum (OAM), causes the particle to rotate around the axis of the beam.

  9. Specific angular momentum - Wikipedia

    en.wikipedia.org/wiki/Specific_angular_momentum

    In celestial mechanics, the specific relative angular momentum (often denoted or ) of a body is the angular momentum of that body divided by its mass. [1] In the case of two orbiting bodies it is the vector product of their relative position and relative linear momentum , divided by the mass of the body in question.