Results 11 to 20 of about 3,343,164 (302)

The enigma of optical momentum in a medium [PDF]

open access: yes, 2010
It is 100 years since Minkowski and Abraham first gave rival expressions for the momentum of light in a material medium. At the single-photon level, these correspond, respectively, either to multiplying or dividing the free-space value () by the ...
Loudon, Rodney, Barnett, Stephen M.
core   +4 more sources

Large-uncertainty intelligent states for angular momentum and angle [PDF]

open access: yes, 2005
The equality in the uncertainty principle for linear momentum and position is obtained for states which also minimize the uncertainty product. However, in the uncertainty relation for angular momentum and angular position both sides of the inequality are
Stephen M Barnett   +8 more
core   +5 more sources

Bowen–York model solution redux

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Initial value problem in general relativity is often solved numerically; with only a few exceptions one of which is the “model” solution of Bowen and York where an analytical form of the solution is available.
Emel Altas, Bayram Tekin
doaj   +1 more source

Angular momentum loss in gravitational scattering, radiation reaction, and the Bondi gauge ambiguity

open access: yesPhysics Letters B, 2022
Recently, Damour computed the radiation reaction on gravitational scattering as the (linear) response to the angular momentum loss which he found to be of O(G2) in the gravitational constant.
Gabriele Veneziano   +1 more
doaj   +1 more source

Do waves carrying orbital angular momentum possess azimuthal linear momentum? [PDF]

open access: yes, 2013
All beams are a superposition of plane waves, which carry linear momentum in the direction of propagation with no net azimuthal component. However, plane waves incident on a hologram can produce a vortex beam carrying orbital angular momentum that seems ...
Speirits, Fiona C., Barnett, Stephen M.
core   +3 more sources

Engineering multiphoton states for linear optics computation [PDF]

open access: yes, 2006
Transformations achievable by linear optical components allow to generate the whole unitary group only when restricted to the one-photon subspace of a multimode Fock space.
Aniello, Paolo   +3 more
core   +2 more sources

Density of optical degrees of freedom : intensity, linear and angular momentum [PDF]

open access: yes, 2014
For any optical system, optical eigenmodes describe solutions of Maxwells equations that are orthogonal to each other. In their simplest free space form, these modes correspond, for example, to Bessel, Laguerre-Gaussian or Hermite-Gaussian beams. However,
Michael Mazilu, Mazilu, Michael
core   +1 more source

Energy and momentum flux in a high-numerical-aperture beam using the extended Nijboer-Zernike diffraction formalism [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2007
We describe the energy and momentum flux in the case of an aberrated optical imaging system with a high numerical aperture (NA). The approach is based on the extended Nijboer-Zernike diffraction theory, that, in its high-NA version, yields an accurate ...
Braat Joseph J. M.   +3 more
doaj   +1 more source

Newton’s Second Law of a particle with variable mass [PDF]

open access: yesRevista Brasileira de Ensino de Física
We approach the question of the movement of a particle with variable mass observed from an inertial frame. We consider two different situations: (i) a particle whose intrinsic mass value varies over time; (ii) the center of mass (CM) of a set of ...
M.T. Thomaz
doaj   +2 more sources

Hydrodynamic theory of chiral angular momentum generation in metals

open access: yesPhysical Review Research, 2021
We present a hydrodynamic theory to describe a chiral electron system with a Weyl spin-orbit interaction on a field-theoretic basis. Evaluating the momentum flux density as a linear response to a driving electric field, we derive an equation of motion ...
Hiroshi Funaki, Gen Tatara
doaj   +1 more source

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