Results 31 to 40 of about 145,179 (287)

Contribution of Orbital Angular Momentum to the Nucleon Spin

open access: yes, 2017
We have calculated the Orbital Angular Momentum of quarks and gluons in the nucleon. The calculations are carried out in the next to leading order utilizing the so-called valon model.
Arash, Firooz   +3 more
core   +1 more source

Orbital angular momentum photonic quantum interface [PDF]

open access: yesLight: Science & Applications, 2016
AbstractLight-carrying orbital angular momentum (OAM) has great potential in enhancing the information channel capacity in both classical and quantum optical communications. Long distance optical communication requires the wavelengths of light are situated in the low-loss communication windows, but most quantum memories currently being developed for ...
Zhou, Zhi-Yuan   +6 more
openaire   +3 more sources

Mapping the transverse spin sum rule in position space

open access: yesPhysics Letters B
We discuss in detail the relativistic spatial distribution of transverse angular momentum, including both orbital and intrinsic spin contributions. Using the quantum phase-space formalism, we begin with the definition of the three-dimensional spatial ...
Cédric Lorcé   +3 more
doaj   +1 more source

Insensitivity of spin dynamics to the orbital angular momentum transferred from twisted light to extended semiconductors [PDF]

open access: yes, 2015
We study the spin dynamics of carriers due to the Rashba interaction in semiconductor quantum disks and wells after excitation with light with orbital angular momentum. We find that although twisted light transfers orbital angular momentum to the excited
Axt, V. M.   +2 more
core   +2 more sources

Quark angular momentum in a spectator model

open access: yesPhysics Letters B, 2015
We investigate the quark angular momentum in a model with the nucleon being a quark and a spectator. Both scalar and axial-vector spectators are included.
Tianbo Liu, Bo-Qiang Ma
doaj   +1 more source

Spin-Orbital momentum decomposition and helicity exchange in a set of non-null knotted electromagnetic fields

open access: yes, 2017
We calculate analytically the spin-orbital decomposition of the angular momentum using completely non-paraxial fields that have certain degree of linkage of electric and magnetic lines.
Arrayás, M, Trueba, J L
core   +2 more sources

Orbital-angular-momentum entanglement in turbulence [PDF]

open access: yesPhysical Review A, 2013
The turbulence induced decay of orbital angular momentum (OAM) entanglement between two photons is investigated numerically and experimentally. To compare our results with previous work, we simulate the turbulent atmosphere with a single phase screen based on the Kolmogorov theory of turbulence.
Ibrahim, Alpha Hamadou   +4 more
openaire   +2 more sources

Parallel axis theorem for free-space electron wavefunctions

open access: yesNew Journal of Physics, 2015
We consider the orbital angular momentum of a free electron vortex moving in a uniform magnetic field. We identify three contributions to this angular momentum: the canonical orbital angular momentum associated with the vortex, the angular momentum of ...
Colin R Greenshields   +2 more
doaj   +1 more source

Quantitative measurement of orbital angular momentum in electron microscopy

open access: yes, 2014
Electron vortex beams have been predicted to enable atomic scale magnetic information measurement, via transfer of orbital angular momentum. Research so far has focussed on developing production techniques and applications of these beams.
Béché, A.   +3 more
core   +1 more source

Polarization-controlled evolution of light transverse modes and associated Pancharatnam geometric phase in orbital angular momentum [PDF]

open access: yes, 2010
We present an easy, efficient and fast method to generate arbitrary linear combinations of light orbital angular momentum eigenstates $\ell=\pm 2$ starting from a linearly polarized TEM$_{00}$ laser beam.
Bruno Piccirillo   +5 more
core   +2 more sources

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