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Conserved physical quantity; rotational analogue of linear momentum
Angular momentum (sometimes called moment of momentum or rotational momentum) is the rotational analog of linear momentum. It is an important physical
Angular_momentum
Intrinsic quantum property of particles
Spin is an intrinsic form of angular momentum carried by elementary particles, and thus by composite particles such as hadrons, atomic nuclei, and atoms
Spin_(physics)
Quantum mechanical operator related to rotational symmetry
mechanics, the angular momentum operator is one of several related operators analogous to classical angular momentum. The angular momentum operator plays
Angular_momentum_operator
Physical quantity carried in photons
The angular momentum of light is a vector quantity that expresses the amount of dynamical rotation present in the electromagnetic field of the light. While
Angular_momentum_of_light
Coupling in quantum physics
mechanics, angular momentum coupling is the procedure of constructing eigenstates of total angular momentum out of eigenstates of separate angular momenta
Angular_momentum_coupling
Quantum number related to rotational symmetry
angular momentum (i.e., its spin). If s is the particle's spin angular momentum and ℓ its orbital angular momentum vector, the total angular momentum
Total angular momentum quantum number
Total_angular_momentum_quantum_number
Angular momentum in special and general relativity
physics, relativistic angular momentum encompasses to the mathematical formalisms and physical concepts that define angular momentum in special relativity
Relativistic_angular_momentum
Vector quantity in celestial mechanics
relative angular momentum (often denoted h → {\displaystyle {\vec {h}}} or h {\displaystyle \mathbf {h} } ) of a body is the angular momentum of that body
Specific_angular_momentum
Quantum number denoting orbital angular momentum
for an atomic orbital that determines its orbital angular momentum and describes aspects of the angular shape of the orbital. The azimuthal quantum number
Azimuthal_quantum_number
Physical constant in quantum mechanics
relates the energy of a photon to its angular frequency, and the linear momentum of a particle to the angular wavenumber of its associated matter wave
Planck_constant
Hadron (subatomic particle) that is composed of three quarks
The total angular momentum (total angular momentum quantum number J) of a particle is therefore the combination of intrinsic angular momentum (spin) and
Baryon
Optical multiplexing technique
angular momentum multiplexing is a physical layer method for multiplexing signals carried on electromagnetic waves using the orbital angular momentum
Orbital angular momentum multiplexing
Orbital_angular_momentum_multiplexing
Elementary particle or quantum of light
carries spin angular momentum, which is related to photon polarization. (Beams of light also exhibit properties described as orbital angular momentum of light)
Photon
Angular momentum deriving from photon spin
The spin angular momentum of light (SAM) is the component of angular momentum of light that is associated with the quantum spin and the rotation between
Spin angular momentum of light
Spin_angular_momentum_of_light
Type of angular momentum in light
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
Orbital angular momentum of light
Orbital_angular_momentum_of_light
Scalar measure of the rotational inertia with respect to a fixed axis of rotation
applied to change its angular momentum. The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional
Moment_of_inertia
Type of motion
linear dynamics. The analog of linear momentum in rotational motion is angular momentum. The greater the angular momentum of the spinning object such as a
Rotation_around_a_fixed_axis
Compact astronomical body
with both charge and angular momentum. The simplest static black holes have mass but neither electric charge nor angular momentum. Contrary to the popular
Black_hole
Concept in physics
In classical mechanics, the balance of angular momentum, also known as Euler's second law, is a fundamental law of physics stating that a torque (a twisting
Balance_of_angular_momentum
Coefficients in angular momentum eigenstates of quantum systems
numbers that arise in angular momentum coupling in quantum mechanics. They appear as the expansion coefficients of total angular momentum eigenstates in an
Clebsch–Gordan_coefficients
Geometric method for visualizing a rotating rigid body
and the three components of the angular momentum, expressed with respect to an inertial laboratory frame. The angular velocity vector ω {\displaystyle
Poinsot's_ellipsoid
Number describing angular momentum along an axis
distinguish quantum states of an electron or other particle according to its angular momentum along a given axis in space. The orbital magnetic quantum number (ml
Magnetic_quantum_number
Atomic model introduced by Niels Bohr in 1913
measurement of the photon angular momentum, the law of conservation of angular momentum predicts that the angular momentum of an electron on a stationary
Bohr_model
Turning force around an axis
The net torque on a body determines the rate of change of the body's angular momentum, τ = d L d t {\displaystyle {\boldsymbol {\tau }}={\frac {\mathrm {d}
Torque
A rigid body with 3 distinct axes of inertia is unstable rotating about the middle axis
{3}}} . Thus the angular momentum ellipsoid is both flatter and sharper, as visible in the animation. In general, the angular momentum ellipsoid is always
Tennis_racket_theorem
Special mathematical functions defined on the surface of a sphere
S^{2}\to \mathbb {C} } are eigenfunctions of the square of the orbital angular momentum operator − i ℏ r × ∇ , {\displaystyle -i\hbar \mathbf {r} \times \nabla
Spherical_harmonics
Elementary particle with negative charge
Quantum mechanical properties of the electron include an intrinsic angular momentum (spin) of half the reduced Planck constant, i.e. ħ/2. Being fermions
Electron
Function describing an electron in an atom
respectively correspond to an electron's energy, its orbital angular momentum, and its orbital angular momentum projected along a chosen axis (magnetic quantum number)
Atomic_orbital
Atom of the element hydrogen
from one discrete orbit to another. Bohr supposed that the electron's angular momentum is quantized with possible values: L = n ℏ {\displaystyle L=n\hbar
Hydrogen_atom
Ratio of magnetic moment and angular momentum
dimensionless quantity that characterizes the magnetic moment and angular momentum of a whole atom, a particle, or a nucleus. It is the ratio of the magnetic
G-factor_(physics)
Topics referred to by the same term
Spin angular momentum is a concept in classical mechanics. It may refer to: Spin angular momentum of light, a property of electromagnetic waves A type
Spin angular momentum (disambiguation)
Spin_angular_momentum_(disambiguation)
Pictorial computational technique in quantum chemistry
notably quantum chemistry, angular momentum diagrams, or more accurately from a mathematical viewpoint angular momentum graphs, are a diagrammatic method
Angular momentum diagrams (quantum mechanics)
Angular_momentum_diagrams_(quantum_mechanics)
Atoms with a single valence electron, so they behave like hydrogen
atoms with small orbital angular momentum, the spectrum is still described well by the Rydberg formula with an angular momentum dependent quantum defect
Hydrogen-like_atom
Aspect of relativity in physics
example, a binary system loses angular momentum as the two orbiting objects spiral towards each other – the angular momentum is radiated away by gravitational
Gravitational_wave
Specific quantum state of a quantum harmonic oscillator
quantum system with angular momentum operator J = ( J x , J y , J z ) {\displaystyle \mathbf {J} =(J_{x},J_{y},J_{z})} and angular momentum quantum number
Coherent_state
Symbol used in quantum mechanics
notation and techniques of that article, total angular momentum states that arise from coupling the angular momentum vectors j 1 {\displaystyle \mathbf {j} _{1}}
9-j_symbol
Short-term changes in the length of the day
keep the total angular momentum constant, a change of the angular momentum in one region must necessarily be balanced by angular momentum changes in the
Day_length_fluctuations
Quantum number parameterizing spin and angular momentum
quantum number (designated s) that describes the intrinsic angular momentum (or spin angular momentum, or simply spin) of an electron or other particle. It
Spin_quantum_number
Study of the effects of forces on undeformable bodies
body and its angular momentum, the scalar I is its moment of inertia, the vector ω is its angular velocity, the vector α is its angular acceleration,
Rigid_body_dynamics
Foundational principle in quantum physics
_{p}\geq {\frac {\hbar }{2}}.} Angular momentum uncertainty relation: For two orthogonal components of the total angular momentum operator of an object: σ J
Uncertainty_principle
Method of storing energy
have a total angular momentum of zero and no gyroscopic effect. A problem with this solution is that when the difference between the momentum of each flywheel
Flywheel_energy_storage
Physical quantity
kinematics, angular acceleration (symbol α, alpha) is the time derivative of angular velocity. Following the two types of angular velocity, spin angular velocity
Angular_acceleration
Vector used in astronomy
among physicists, possibly because it is less intuitive than momentum and angular momentum. Consequently, it has been rediscovered independently several
Laplace–Runge–Lenz_vector
Mathematical operation on vectors in 3D space
\mathbf {\tau } } Since position r, linear momentum p and force F are all true vectors, both the angular momentum L and the moment of a force M are pseudovectors
Cross_product
Two systems are coupled if they are interacting with each other
coupled angular momenta. Due to the conservation of angular momentum and the nature of the angular momentum operator, the total angular momentum is always
Coupling_(physics)
Theory of motion and forces for objects close to the speed of light
angular momentum tensor is sometimes called a bivector because in the 3D viewpoint it is two vectors (one of these, the conventional angular momentum
Relativistic_mechanics
Quantum explanation of electromagnetic polarization
correspondence principle then allows the identification of momentum and angular momentum (called spin), as well as energy, with the photon. The wave
Photon_polarization
Relation satisfied by conjugate variables in quantum mechanics
\Lambda \vert \psi \rangle \,.} The gauge-invariant angular momentum (or "kinetic angular momentum") is given by K = r × ( p − q A c ) , {\displaystyle
Canonical commutation relation
Canonical_commutation_relation
Laws in physics about force and motion
of inertia, the counterpart of momentum is angular momentum, and the counterpart of force is torque. Angular momentum is calculated with respect to a
Newton's_laws_of_motion
Physics problem related to laws of motion and gravity
corresponding to zero angular momentum. In practice, the latter restriction is insignificant since initial conditions with zero angular momentum are rare, having
Three-body_problem
Raising and lowering operators in quantum mechanics
mechanics are in the formalisms of the quantum harmonic oscillator and angular momentum. There is a relationship between the raising and lowering ladder operators
Ladder_operator
Tensor describing energy momentum density in spacetime
this with the symmetry of the stress–energy tensor, one can show that angular momentum is also conserved: 0 = ( x α T μ ν − x μ T α ν ) , ν . {\displaystyle
Stress–energy_tensor
Theory in propeller or turbine physics
element momentum theory, angular momentum is included in the model, meaning that the wake (the air after interaction with the rotor) has angular momentum. That
Blade_element_momentum_theory
Property of a mass in motion
In Newtonian mechanics, momentum (pl.: momenta or momentums; more specifically linear momentum or translational momentum) is the product of the mass and
Momentum
Theoretical cosmological structure
subjected to dynamical friction which causes it to lose energy and angular momentum to the dark matter particles of its host. Whether a subhalo survives
Dark_matter_halo
meteorology, absolute angular momentum is the angular momentum in an 'absolute' coordinate system (absolute time and space). Angular momentum L equates with
Absolute_angular_momentum
Concept in the physics of electromagnetism
orbital angular momenta are added to get a total orbital angular momentum. These two then are added using angular momentum coupling to get a total angular momentum
Magnetic_moment
Scientific law regarding conservation of a physical property
include conservation of mass-energy, conservation of linear momentum, conservation of angular momentum, and conservation of electric charge. There are also many
Conservation_law
Periodic change in the direction of a rotation axis
applied to the body. In torque-free precession, the angular momentum is a constant, but the angular velocity vector changes orientation with time. What
Precession
Excited atomic quantum state with high principal quantum number (n)
shows some of the energy levels of the lowest three values of orbital angular momentum in lithium. The existence of the Rydberg series was first demonstrated
Rydberg_atom
Attitude control device used in spacecraft
causes a counter-rotation proportionately through conservation of angular momentum. A reaction wheel can rotate only around its center of mass; it is
Reaction_wheel
Subatomic particle; made of equal numbers of quarks and antiquarks
another quantity of quantized angular momentum, called the orbital angular momentum (quantum number L), that is the angular momentum due to quarks orbiting each
Meson
Spectral line splitting in magnetic field
of the contributions of the orbital angular momentum L → {\displaystyle {\vec {L}}} and the spin angular momentum S → {\displaystyle {\vec {S}}} , with
Zeeman_effect
Term from classical mechanics
conservation of angular momentum. Areal velocity is closely related to angular momentum. Any object has an orbital angular momentum about an origin,
Areal_velocity
Unique point where the weighted relative position of the distributed mass sums to zero
mechanics that involve masses distributed in space, such as the linear and angular momentum of planetary bodies and rigid body dynamics. In orbital mechanics,
Center_of_mass
Spectroscopic technique based on change of nuclear spin state
magnetic field in the spectrometer, the nucleus must have an intrinsic angular momentum and nuclear magnetic dipole moment. This occurs when an isotope has
Nuclear_magnetic_resonance
utilized by Julian Schwinger in 1952 to re-work out the theory of quantum angular momentum efficiently, given that map’s ease of organizing the (symmetric) representations
Jordan_map
Formal constraint in quantum mechanics
the total angular momentum of the atom is F = I + J , {\displaystyle F=I+J,} where I {\displaystyle I} is the nuclear spin angular momentum and J {\displaystyle
Selection_rule
Turbomachinery Equation in Fluid Dynamics
momentum equation when applied for a pump or a turbine. A consequence of Newton's second law of mechanics is the conservation of the angular momentum
Euler's pump and turbine equation
Euler's_pump_and_turbine_equation
Technique in computational quantum field theory
theory is the angular momentum of the particle in its rest frame. Spin observables are defined by boosting the particle's angular momentum tensor to the
Light_front_quantization
Attitude control device
motorized gimbals that tilt the rotor’s angular momentum. As the rotor tilts, the changing angular momentum causes a gyroscopic torque that rotates the
Control_moment_gyroscope
Structure formed by diffuse material in orbital motion around a massive central body
jets are invoked by astronomers to do everything from getting rid of angular momentum in a forming star to reionizing the universe (in active galactic nuclei)
Accretion_disk
Kinetic energy of rotating body with moment of inertia and angular velocity
infinitesimally slowing down Earth's angular velocity ω. Due to the conservation of angular momentum, this process transfers angular momentum to the Moon's orbital motion
Rotational_energy
Hypothetical particle composed of gluons
have total angular momentum J = 0 (which are either scalar or pseudo-scalar) or J = 2. Triple-gluon glueballs can have total angular momentum J = 1 (vector
Glueball
Tensor operator generalizes the notion of operators which are scalars and vectors
harmonics. The spherical basis closely relates to the description of angular momentum in quantum mechanics and spherical harmonic functions. The coordinate-free
Tensor_operator
Direction and rate of rotation
time difference, it results in the angular displacement tensor. Angular acceleration Angular frequency Angular momentum Areal velocity Gyroscope Piston motion
Angular_velocity
Method of combining multiple signals into one signal over a shared medium
polarized antenna transmission utilizing a differential technique. Orbital angular momentum multiplexing is a relatively new and experimental technique for multiplexing
Multiplexing
Quantised attribute of electrons in free space
can carry quantized orbital angular momentum (OAM) projected along the direction of propagation. This orbital angular momentum corresponds to helical wavefronts
Orbital angular momentum of free electrons
Orbital_angular_momentum_of_free_electrons
Consequence of the conservation of angular momentum
body to rotate. The effect is a consequence of the conservation of angular momentum. It is strong enough to be observable in ferromagnetic materials. The
Einstein–de_Haas_effect
Movement of an object's magnetic moment axis about a magnetic field
and the angular momentum. The angular momentum vector J → {\displaystyle {\vec {J}}} precesses about the external field axis with an angular frequency
Larmor_precession
Predecessor to modern quantum mechanics (1900–1925)
Nicholson is noted as the first to create an atomic model that quantized angular momentum as h / ( 2 π ) {\displaystyle h/(2\pi )} . Niels Bohr quoted him in
Old_quantum_theory
Elementary particles with a spin of 1/2
field, causing it to split into N parts depending on the intrinsic angular momentum of the atoms. It was found that for silver atoms, the beam was split
Spin_1/2
Branch of physics
linear momentum and angular momentum. The reversal of angular momentum means reversal of both polarization state and orbital angular momentum. Reversal
Nonlinear_optics
Mathematical physics equation tied to the Dirac current
find the bound spin-momentum contribution. By an integration by parts one finds that the spin contribution to the total angular momentum is ∫ r × ( 1 2 ∇
Gordon_decomposition
Problem in astrophysics
The angular momentum problem is a problem in astrophysics identified by Leon Mestel in 1965. It was found that the angular momentum of a protoplanetary
Angular_momentum_problem
Notation for conserved quantities in physics and chemistry
become the quantized values of the projection of spin, an intrinsic angular momentum quantum of the electron. In 1927 Ronald G. J. Fraser [de] demonstrated
Quantum_number
Ratio of magnetic moment to angular momentum
of a particle or system is the ratio of its magnetic moment to its angular momentum, and it is often denoted by the symbol γ, gamma. Its SI unit is the
Gyromagnetic_ratio
Topics referred to by the same term
Orbital angular momentum is a concept in classical mechanics. It may also refer to: One of three main quantum angular momentum operators Orbital angular momentum
Orbital angular momentum (disambiguation)
Orbital_angular_momentum_(disambiguation)
Theorem used in quantum mechanics for angular momentum calculations
the basis of angular momentum eigenstates can be expressed as the product of two factors, one of which is independent of angular momentum orientation,
Wigner–Eckart_theorem
Theory to explain slowing of a star's spin
Magnetic braking is the process by which a star loses angular momentum due to a coupling between its solar wind and magnetic field. Magnetic braking plays
Magnetic_braking_(astronomy)
Natural phenomenon due to which tidal locking occurs
Moon's angular rate of orbital motion, due to tidal exchange of angular momentum between Earth and Moon. This increases the Moon's angular momentum around
Tidal_acceleration
Statement relating differentiable symmetries to conserved quantities
rotation: from this symmetry, Noether's theorem dictates that the angular momentum of the system be conserved, as a consequence of its laws of motion
Noether's_theorem
1922 physical experiment demonstrating that atomic spin is quantized
Stern–Gerlach experiment demonstrated that the spatial orientation of angular momentum is quantized. Thus an atomic-scale system was shown to have intrinsically
Stern–Gerlach_experiment
Device for measuring or maintaining orientation
by tilting or rotation of the mounting, due to the conservation of angular momentum. Gyroscopes based on other operating principles also exist, such as
Gyroscope
Physical quantity that changes sign with improper rotation
include angular velocity, angular acceleration, angular momentum, torque, magnetic field, and magnetic dipole moment. Consider the pseudovector angular momentum
Pseudovector
Black hole which possesses angular momentum
A rotating black hole is a black hole that possesses angular momentum. All currently known celestial objects, including planets, stars (Sun), galaxies
Rotating_black_hole
Type of radioactive decay
classified according to the angular momentum (L value) and total spin (S value) of the emitted radiation. Since total angular momentum must be conserved, including
Beta_decay
Tool in symplectic geometry
conserved quantities for the action. The momentum map generalizes the classical notions of linear and angular momentum. It is an essential ingredient in various
Momentum_map
Description of physical properties at the atomic and subatomic scale
bound states that are quantized to discrete values of energy, momentum, angular momentum, and other quantities, in contrast to classical systems where
Quantum_mechanics
Exact solution for the Einstein field equations
Q represents the body's electric charge and J represents its spin angular momentum: According to the Kerr metric, a rotating body should exhibit frame-dragging
Kerr_metric
ANGULAR MOMENTUM
ANGULAR MOMENTUM
Boy/Male
Gujarati, Hindu, Indian, Kannada
Spark of Fire
Female
English
Feminine form of Latin Angelus, ANGELA means "angel, messenger."
Girl/Female
Muslim
Unique, Singular, Exclusive
Girl/Female
Arabic, Muslim
Unique; Singular
Girl/Female
Muslim
Unique, Singular, Exclusive
Boy/Male
Arabic, Muslim, Parsi, Pashtun
Embers
Girl/Female
Muslim
Unique, Singular, Exclusive
Girl/Female
Indian
Unique, Singular
Boy/Male
Arabic, Hindu, Indian, Muslim
Shining
Girl/Female
Christian & English(British/American/Australian)
Angelic
Girl/Female
American, Australian, British, English
Beautiful Goddess
Girl/Female
Indian, Tamil
Lovely; Kind-hearted
Boy/Male
Indian, Sanskrit
Praising; A Hymn
Girl/Female
Muslim
Unique, Singular
Girl/Female
Assamese, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Sindhi, Tamil, Telugu
Not Wild; Gentle
Girl/Female
French Spanish American Italian Latin Greek
Angel.
Boy/Male
Hindu, Indian, Kannada, Tamil
Witty; Super
Boy/Male
Hindu, Indian, Tamil
Regular Winner
Boy/Male
Indian, Sanskrit
Radiant; Bright; Enlightening
Girl/Female
Afghan, American, British, Christian, English, Finnish, French, Greek, Indian, Irish, Lebanese, Polish, Portuguese, Romanian, Spanish, Swedish, Tamil
Heavenly Messenger; Angel; Messenger from God
ANGULAR MOMENTUM
ANGULAR MOMENTUM
Biblical
song; singer; vine
Girl/Female
Indian
Prophet muhammads daughter
Girl/Female
Indian
Brilliant, Splendid
Girl/Female
Indian
Existence of Love
Boy/Male
Indian, Malayalam
Music of God
Boy/Male
Arabic
Unity
Boy/Male
Indian
Intelligent
Girl/Female
English
Modern variants of Frances meaning From France or free one.
Girl/Female
Indian, Tamil, Traditional
Beautiful
Girl/Female
Tamil
Ancient malwa, Ujjain
ANGULAR MOMENTUM
ANGULAR MOMENTUM
ANGULAR MOMENTUM
ANGULAR MOMENTUM
ANGULAR MOMENTUM
a.
Denoting one person or thing; as, the singular number; -- opposed to dual and plural.
n.
The singular number, or the number denoting one person or thing; a word in the singular number.
pl.
of Ungula
a.
Of or pertaining to the jugular vein; as, the jugular foramen.
a.
Conformed to a rule; agreeable to an established rule, law, principle, or type, or to established customary forms; normal; symmetrical; as, a regular verse in poetry; a regular piece of music; a regular verb; regular practice of law or medicine; a regular building.
a.
Not angular.
a.
Of or pertaining to the throat or neck; as, the jugular vein.
a.
Standing by itself; out of the ordinary course; unusual; uncommon; strange; as, a singular phenomenon.
a.
Each; individual; as, to convey several parcels of land, all and singular.
a.
Thorough; complete; unmitigated; as, a regular humbug.
a.
Having the form of a ring; annular.
a.
Pertaining to, or having the form of, a ring; forming a ring; ringed; ring-shaped; as, annular fibers.
v. t.
To make angular.
adv.
In an angular manner; angularly.
adv.
In an angular manner; with of at angles or corners.
a.
Measured by an angle; as, angular distance.
a.
Having all the parts of the same kind alike in size and shape; as, a regular flower; a regular sea urchin.
a.
Fig.: Lean; lank; raw-boned; ungraceful; sharp and stiff in character; as, remarkably angular in his habits and appearance; an angular female.
a.
Relating to an angle or to angles; having an angle or angles; forming an angle or corner; sharp-cornered; pointed; as, an angular figure.
a.
Constituted, selected, or conducted in conformity with established usages, rules, or discipline; duly authorized; permanently organized; as, a regular meeting; a regular physican; a regular nomination; regular troops.