Results 31 to 40 of about 844,889 (234)
Photoionization with orbital angular momentum beams
Optics Express, 2010 Intense laser ionization expands Einstein's photoelectric effect rules giving a wealth of phenomena widely studied over the last decades. In all cases, so far, photons were assumed to carry one unit of angular momentum. However it is now clear that photons can possess extra angular momentum, the orbital angular momentum (OAM), related to their spatial ...
Picón, A. +5 more
openaire +3 more sources
Orbital-angular-momentum entanglement in turbulence [PDF]
Physical 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
Entanglement of polarization and orbital angular momentum [PDF]
Physical Review A, 2015 We investigate two-photon entangled states using two important degrees of freedom of the electromagnetic field, namely orbital angular momentum (OAM) and spin angular momentum. For photons propagating in the same direction we apply the idea of $\textit{entanglement duality}$ and develop schemes to do $\textit{entanglement sorting}$ based either on OAM ...
Bhatti, Daniel +2 more
openaire +2 more sources
Generation and manipulation of laser beams carrying orbital angular momentum for classical and quantum information applications [PDF]
, 2009 Light orbital angular momentum (OAM) has been recognized as a new promising resource for classical and quantum information applications. In contrast to the spin angular momentum, the OAM is an inherently multidimensional.
Karimi, Ebrahim
core +1 more source
Classification of magnetic vortices by angular momentum conservation
Physical Review Research, 2021 Superfluid vortices are quantum excitations carrying a quantized amount of orbital angular momentum in a phase where global symmetry is spontaneously broken.
Kenji Fukushima +2 more
doaj +1 more source
Spin-orbit interaction of light induced by transverse spin angular momentum engineering
Nature Communications, 2018 Harnessing both orbital and spin angular momentum in light fields enables various applications in bio-sensing and nano-photonics. Here, the authors create engineered spin-orbit coupling between orbital angular momentum and transverse spin angular ...
Zengkai Shao +4 more
doaj +1 more source
Nested SU(2) symmetry of photonic orbital angular momentum
Frontiers in Physics, 2023 The polarization state is described by a quantum mechanical two-level system, which is known as special unitary group of degree 2 [SU(2)]. Polarization is attributed to an internal spin degree of freedom inherent to photons, while photons also possess an
Shinichi Saito
doaj +1 more source
Mapping the transverse spin sum rule in position space
Physics Letters BWe 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
On the six components of optical angular momentum [PDF]
, 2011 In special relativity the angular momentum is a rank-two antisymmetric tensor with six independent components. Three of these are the familiar generators of spatial rotation, which for light have been studied at length.
Barnett, Stephen M.
core +2 more sources
Parallel axis theorem for free-space electron wavefunctions
New 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