Sorting and detecting orbital angular momentum states by using a Dove prism embedded Mach–Zehnder interferometer and amplitude gratings

2011 ◽  
Vol 284 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Chunqing Gao ◽  
Xiaoqing Qi ◽  
Yidong Liu ◽  
Jingtao Xin ◽  
Lei Wang
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Zehnder Interferometer ◽  
Dove Prism ◽  
Mach Zehnder Interferometer

scholarly journals Single-path Sagnac interferometer with Dove prism for orbital-angular-momentum photon manipulation

2017 ◽  
Vol 25 (21) ◽  
pp. 24946 ◽  
Author(s):  
Fang-Xiang Wang ◽  
Wei Chen ◽  
Ya-Ping Li ◽  
Guo-Wei Zhang ◽  
Zhen-Qiang Yin ◽  
...  
Keyword(s):  
Angular Momentum ◽  
Orbital Angular Momentum ◽  
Sagnac Interferometer ◽  
Dove Prism ◽  
Single Path

scholarly journals How a Dove prism transforms the orbital angular momentum of a light beam

2006 ◽  
Vol 14 (20) ◽  
pp. 9093 ◽  
Author(s):  
N. González ◽  
G. Molina-Terriza ◽  
J. P. Torres
Keyword(s):  
Angular Momentum ◽  
Light Beam ◽  
Orbital Angular Momentum ◽  
Dove Prism

scholarly journals Locality and nonlocality in the interaction-free measurement

2018 ◽  
Vol 182 ◽  
pp. 02105 ◽  
Author(s):  
Daniel Rohrlich ◽  
Yakir Aharonov ◽  
Tomer Landsberger
Keyword(s):  
Angular Momentum ◽  
Thought Experiment ◽  
Local Interaction ◽  
Zehnder Interferometer ◽  
Local Current ◽  
Interaction Free Measurement ◽  
Mach Zehnder Interferometer

We present a paradox involving a particle and a mirror. They exchange a nonlocal quantity, modular angular momentum Lz mod 2ћ, but there seems to be no local interaction between them that allows such an exchange. We demonstrate that the particle and mirror do interact locally via a weak local current 〈Lz mod 2ћ〉w. In this sense, we transform the “interaction-free measurement” of Elitzur and Vaidman, in which two local quantities (the positions of a photon and a bomb in the two arms of a Mach-Zehnder interferometer) interact nonlocally, into a thought experiment in which two nonlocal quantities (the weak modular angular momentum of the particle and of the mirror) interact locally.

scholarly journals When Photons Are Lying about Where They Have Been

Entropy ◽  
2018 ◽  
Vol 20 (7) ◽  
pp. 538 ◽  
Author(s):  
Lev Vaidman ◽  
Izumi Tsutsui
Keyword(s):  
Zehnder Interferometer ◽  
Experimental Demonstration ◽  
The Past ◽  
History Of ◽  
Dove Prism ◽  
Bohmian Trajectory ◽  
Mach Zehnder Interferometer

The history of photons in a nested Mach–Zehnder interferometer with an inserted Dove prism is analyzed. It is argued that the Dove prism does not change the past of the photon. Alonso and Jordan correctly point out that an experiment by Danan et al. demonstrating the past of the photon in a nested interferometer will show different results when the Dove prism is inserted. The reason, however, is not that the past is changed, but that the experimental demonstration becomes incorrect. The explanation of a signal from the place in which the photon was (almost) not present is given. Bohmian trajectory of the photon is specified.

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