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Recent advances on optical vortex generation

Nanophotonics, 2018
This article reviews recent progress leading to the generation of optical vortex beams. After introducing the basics of optical vortex beams and their promising applications, we summarized different approaches for optical vortex generation by discrete ...
Wang Xuewen, Nie Zhongquan, Liang Yao, Wang Jian, Li Tao, Jia Baohua   +5 more
doaj   +1 more source

Geometric phase for mixed states: a differential geometric approach [PDF]

, 2003
A new definition and interpretation of geometric phase for mixed state cyclic unitary evolution in quantum mechanics are presented. The pure state case is formulated in a framework involving three selected Principal Fibre Bundles, and the well known ...
Aharanov, Berry, Dabrowski, E. Ercolessi, Ercolessi, G. Marmo, G. Morandi, Kirillov, Mukunda, Mukunda, Mukunda, N. Mukunda, Nielsen, Pistolesi, R. Simon, Rabei, S. Chaturvedi, Samuel, Simon, Sjöqvist, Uhlmann, Wilczek   +21 more
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Geometric-phase polarimetry [PDF]

Journal of Optics, 2020
Abstract This paper describes polarimetric strategies based on measuring the light’s geometric phase, which results from the evolution of the polarisation state while traversing an optical system. The system in question is described by a homogeneous Jones matrix, which by definition, contains mutually perpendicular eigenpolarisations ...
Luis Garza-Soto, Alejandra De-Luna-Pamanes, Israel Melendez-Montoya, Natalia Sanchez-Soria, Diana Gonzalez-Hernandez, Dorilian Lopez-Mago   +5 more
openaire   +2 more sources

Nonlinear behavior of geometric phases induced by photon pairs [PDF]

, 2011
In this study, we observe the nonlinear behavior of the two-photon geometric phase for polarization states using time-correlated photons pairs. This phase manifests as a shift of two-photon interference fringes.
H. Kobayashi, M. Kitano, S. Pancharatnam, S. Tamate, T. Nakanishi, Y. Ikeda   +5 more
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Geometric phase at graphene edge

, 2014
We study the scattering phase shift of Dirac fermions at graphene edge. We find that when a plane wave of a Dirac fermion is reflected at an edge of graphene, its reflection phase is shifted by the geometric phase resulting from the change of the ...
Choi, Sang-Jun, Park, Sunghun, Sim, H. -S.   +2 more
core   +1 more source

Demonstration of Geometric Landau-Zener Interferometry in a Superconducting Qubit [PDF]

, 2014
Geometric quantum manipulation and Landau-Zener interferometry have been separately explored in many quantum systems. In this Letter, we combine these two approaches to study the dynamics of a superconducting phase qubit.
Han, Siyuan, Tan, Xinsheng, Yu, Yang, Zhang, Dan-Wei, Zhang, Zhentao, Zhu, Shi-Liang   +5 more
core   +3 more sources

Geometric phase in dephasing systems

, 2005
Beyond the quantum Markov approximation, we calculate the geometric phase of a two-level system driven by a quantized magnetic field subject to phase dephasing.
A. Ekert, C. J. Myatt, J. A. Jones, L. C. Wang, W. Wang, X. X. Yi   +5 more
core   +1 more source

Noncyclic geometric phase and its non-Abelian generalization [PDF]

, 1999
We use the theory of dynamical invariants to yield a simple derivation of noncyclic analogues of the Abelian and non-Abelian geometric phases. This derivation relies only on the principle of gauge invariance and elucidates the existing definitions of the
Aitchison I J R, Ali Mostafazadeh, Avron J E, Berry M V, Born M, Christian J, de Polavieja G G, Kato T, Lewis H R Jr, Monteoliva D B, Morales D A, Mostafazadeh A, Mostafazadeh A, Mostafazadeh A, Nakahara M, Pati A K, Pressley A, Wu Y-S, Zak J   +18 more
core   +2 more sources

Geometric Mixing, Peristalsis, and the Geometric Phase of the Stomach. [PDF]

PLoS ONE, 2015
Mixing fluid in a container at low Reynolds number--in an inertialess environment--is not a trivial task. Reciprocating motions merely lead to cycles of mixing and unmixing, so continuous rotation, as used in many technological applications, would appear
Jorge Arrieta, Julyan H E Cartwright, Emmanuelle Gouillart, Nicolas Piro, Oreste Piro, Idan Tuval   +5 more
doaj   +1 more source

Geometric phase for timelike spherical normal magnetic charged particles optical ferromagnetic model

Journal of Taibah University for Science, 2020
We introduce the theory of optical spherical Heisenberg ferromagnetic spin of timelike spherical normal magnetic flows of particles by the spherical frame in de Sitter space.
Talat Korpinar, Zeliha Korpinar, Mustafa Inc, Dumitru Baleanu   +3 more
doaj   +1 more source