Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Götte Jörg"'
Autor:
Götte Jörg, Ye Zhujun, McWilliams Amy, Cisowski Claire, Speirits Fiona, Franke-Arnold Sonja, Barnett Stephen M.
Publikováno v:
EPJ Web of Conferences, Vol 309, p 11003 (2024)
Vector light beams feature a spatially varying optical polarisation and can exhibit localised structures reminiscent of the skyrmions familiar from the study of magnetic media. We present a theory and experimental measurements of such skyrmions in bo
Externí odkaz:
https://doaj.org/article/78e7c71dd8d54eb487d3bb4d5e32005d
Autor:
Chowdhury, Shushmi, Götte, Jörg B.
We consider weak values in the Feynman propagator framework, to gain a broader understanding of their interpretation in terms of path integrals. In particular, we examine the phenomenon of seemingly discontinuous paths that particles take in nested M
Externí odkaz:
http://arxiv.org/abs/2407.06989
Optical helicity quantifies the handedness of light, and plays a central role in the description of interactions between light and chiral matter. In free space, it is related to the duality symmetry of the electromagnetic field, a continuous symmetry
Externí odkaz:
http://arxiv.org/abs/2405.08086
We show that Skyrmion field lines, constructed from the local Stokes parameters, trace out lines of constant optical polarisation.
Comment: Updated version published in Europhysics Letters. Only minor changes
Comment: Updated version published in Europhysics Letters. Only minor changes
Externí odkaz:
http://arxiv.org/abs/2304.09668
Publikováno v:
Physical Review A 110, 033323 (2024)
We examine the potential-energy curves and polarization of the dipole moments of two static polar molecules under the influence of an external dc electric field and their anisotropic dipole-dipole interaction. We model the molecules as quantum rigid
Externí odkaz:
http://arxiv.org/abs/2303.02199
Publikováno v:
Phys. Rev. A 106, 013321 (2022)
We reveal the existence of polarizing quantum phases for the enantiomers of cold, interacting chiral molecules in an optical helicity lattice by means of an extended Bose-Hubbard model. These recently proposed lattices have sites with alternating hel
Externí odkaz:
http://arxiv.org/abs/2203.09246
Akademický článek
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We consider the energy and helicity densities of circularly polarised light within a lossless chiral medium, characterised by the chirality parameter $\beta$. A form for the helicity density is introduced, valid to first order in $\beta$, that produc
Externí odkaz:
http://arxiv.org/abs/1907.09823
Autor:
Gao, Sijia, Götte, Jörg B., Speirits, Fiona C., Castellucci, Francesco, Franke-Arnold, Sonja, Barnett, Stephen M.
Publikováno v:
Phys. Rev. A 102, 053513 (2020)
Vector vortex beams possess a topological property that derives both from the spatially varying amplitude of the field and also from its varying polarization. This property arises as a consequence of the inherent Skyrmionic nature of such beams and i
Externí odkaz:
http://arxiv.org/abs/1906.05333
Akademický článek
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