Results 21 to 30 of about 806,308 (335)

Quasi-Local Linear Momentum in Black-Hole Binaries [PDF]

open access: yes, 2007
We propose a quasi-local formula for the linear momentum of black-hole horizons inspired by the formalism of quasi-local horizons. We test this formula using two complementary configurations: (i) by calculating the large orbital linear momentum of the ...
A. Ashtekar   +4 more
core   +3 more sources

Potential linear and angular momentum in the scalar diquark model

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We present an analytic two-loop calculation within the scalar diquark model of the potential linear and angular momenta, defined as the difference between the Jaffe-Manohar and Ji notions of linear and angular momenta.
David Arturo Amor-Quiroz   +3 more
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

Momentum flow in black-hole binaries. I. Post-Newtonian analysis of the inspiral and spin-induced bobbing [PDF]

open access: yes, 2009
A brief overview is presented of a new Caltech/Cornell research program that is exploring the nonlinear dynamics of curved spacetime in binary black-hole collisions and mergers, and of an initial project in this program aimed at elucidating the flow of ...
Chen, Yanbei   +3 more
core   +2 more sources

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

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

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

Classical gravitational observables from the Eikonal operator

open access: yesPhysics Letters B, 2023
We propose two possible eikonal operators encoding the effects of classical radiation as coherent states of gravitons and show how to compute from them different classical observables.
Paolo Di Vecchia   +3 more
doaj   +1 more source

Complete and Deterministic discrimination of polarization Bell state assisted by momentum entanglement [PDF]

open access: yes, 2006
A complete and deterministic Bell state measurement was realized by a simple linear optics experimental scheme which adopts 2-photon polarization-momentum hyperentanglement.
F. De Martini   +5 more
core   +2 more sources

Magnon-Driven Domain-Wall Motion with the Dzyaloshinskii-Moriya Interaction

open access: yes, 2015
We study domain wall (DW) motion induced by spin waves (magnons) in the presence of Dzyaloshinskii-Moriya interaction (DMI). The DMI exerts a torque on the DW when spin waves pass through the DW, and this torque represents a linear momentum exchange ...
Albert, Maximilian   +7 more
core   +1 more source

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