Tunable Magneto-optical Faraday rotation with a five-level atomic system near the plasmonic nanostructure

Author(s):  
Azar Vafafard ◽  
Mostafa Sahrai ◽  
seyyed Hossein Asadpour ◽  
Edris Faizabadi
2014 ◽  
Vol 32 (1) ◽  
pp. 167 ◽  
Author(s):  
Mariye Veisi ◽  
Azar Vafafard ◽  
Mohammad Mahmoudi

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Behzad Sangshekan ◽  
Mostafa Sahrai ◽  
Seyyed Hossein Asadpour ◽  
Jafar Poursamad Bonab

AbstractA five-level atomic system is proposed in vicinity of a two-dimensional (2D) plasmonic nanostructure with application in atom-photon entanglement. The behavior of the atom-photon entanglement is discussed with and without a control laser field. The amount of atom-photon entanglement is controlled by the quantum interference created by the plasmonic nanostructure. Thus, the degree of atom-photon entanglement is affected by the atomic distance from the plasmonic nanostructure. In the presence of a control field, maximum entanglement between the atom and its spontaneous emission field is observed.


2021 ◽  
Author(s):  
Behzad Sangshekan ◽  
Mostafa Sahrai ◽  
Seyyed Hossein Asadpour ◽  
Jafar Poursamad Bonab

Abstract A five-level atomic system is proposed in vicinity of a two-dimensional (2D) plasmonic nanostructure with application in atom-photon entanglement. The behavior of the atom-photon entanglement is discussed with and without a control laser field. The amount of atom-photon entanglement is controlled by the quantum interference created by the plasmonic nanostructure. Thus, the degree of atom-photon entanglement is affected by the atomic distance from the plasmonic nanostructure. In the presence of a control field, maximum entanglement between the atom and its spontaneous emission field is observed.


1988 ◽  
Vol 49 (C8) ◽  
pp. C8-969-C8-970 ◽  
Author(s):  
F. D'Orazio ◽  
F. Giammaria ◽  
F. Lucari ◽  
G. Parone
Keyword(s):  

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-961-C8-962
Author(s):  
M. Guillot ◽  
H. Le Gall ◽  
A. Marchand ◽  
A. Barlet ◽  
M. Artinian ◽  
...  
Keyword(s):  

2008 ◽  
Vol 4 (S254) ◽  
pp. 95-96
Author(s):  
Arthur M. Wolfe ◽  
Regina A. Jorgenson ◽  
Timothy Robishaw ◽  
Carl Heiles ◽  
Jason X. Prochaska

AbstractThe magnetic field pervading our Galaxy is a crucial constituent of the interstellar medium: it mediates the dynamics of interstellar clouds, the energy density of cosmic rays, and the formation of stars (Beck 2005). The field associated with ionized interstellar gas has been determined through observations of pulsars in our Galaxy. Radio-frequency measurements of pulse dispersion and the rotation of the plane of linear polarization, i.e., Faraday rotation, yield an average value B ≈ 3 μG (Han et al. 2006). The possible detection of Faraday rotation of linearly polarized photons emitted by high-redshift quasars (Kronberg et al. 2008) suggests similar magnetic fields are present in foreground galaxies with redshifts z > 1. As Faraday rotation alone, however, determines neither the magnitude nor the redshift of the magnetic field, the strength of galactic magnetic fields at redshifts z > 0 remains uncertain.Here we report a measurement of a magnetic field of B ≈ 84 μG in a galaxy at z =0.692, using the same Zeeman-splitting technique that revealed an average value of B = 6 μG in the neutral interstellar gas of our Galaxy (Heiles et al. 2004). This is unexpected, as the leading theory of magnetic field generation, the mean-field dynamo model, predicts large-scale magnetic fields to be weaker in the past, rather than stronger (Parker 1970).The full text of this paper was published in Nature (Wolfe et al. 2008).


2021 ◽  
Vol 129 (18) ◽  
pp. 183103
Author(s):  
Minyu Gu ◽  
Krzysztof A. Michalski
Keyword(s):  

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