scholarly journals Tomography of the Temporal-Spectral State of Subnatural-Linewidth Single Photons from Atomic Ensembles

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
Ce Yang ◽  
Zhenjie Gu ◽  
Peng Chen ◽  
Zhongzhong Qin ◽  
J. F. Chen ◽  
...  
Keyword(s):  
Single Photons ◽  
Atomic Ensembles ◽  
Spectral State

scholarly journals Temporal Purity and Quantum Interference of Single Photons from Two Independent Cold Atomic Ensembles

2016 ◽  
Vol 117 (1) ◽  
Author(s):  
Peng Qian ◽  
Zhenjie Gu ◽  
Rong Cao ◽  
Rong Wen ◽  
Z. Y. Ou ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Single Photons ◽  
Atomic Ensembles

scholarly journals Probing the indistinguishability of single photons generated by Rydberg atomic ensembles

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Auxiliadora Padrón-Brito ◽  
Jan Lowinski ◽  
Pau Farrera ◽  
Klara Theophilo ◽  
Hugues de Riedmatten
Keyword(s):  
Single Photons ◽  
Atomic Ensembles

scholarly journals Mesoscale cavities in hollow-core waveguides for quantum optics with atomic ensembles

Nanophotonics ◽  
2016 ◽  
Vol 5 (3) ◽  
pp. 392-408 ◽  
Author(s):  
C.M. Haapamaki ◽  
J. Flannery ◽  
G. Bappi ◽  
R. Al Maruf ◽  
S.V. Bhaskara ◽  
...  
Keyword(s):  
Nonlinear Optics ◽  
Quantum Optics ◽  
Light Propagation ◽  
Single Photon ◽  
Single Mode ◽  
Bragg Gratings ◽  
Single Photons ◽  
Optical Nonlinearities ◽  
Hollow Core ◽  
Atomic Ensembles

AbstractSingle-mode hollow-core waveguides loaded with atomic ensembles offer an excellent platform for light–matter interactions and nonlinear optics at low photon levels. We review and discuss possible approaches for incorporating mirrors, cavities, and Bragg gratings into these waveguides without obstructing their hollow cores. With these additional features controlling the light propagation in the hollow-core waveguides, one could potentially achieve optical nonlinearities controllable by single photons in systems with small footprints that can be integrated on a chip. We propose possible applications such as single-photon transistors and superradiant lasers that could be implemented in these enhanced hollow-core waveguides.

Hysteresis in spectral state transitions – a challenge for theoretical modeling

2005 ◽  
Vol 432 (1) ◽  
pp. 181-187 ◽  
Author(s):  
E. Meyer-Hofmeister ◽  
B. F. Liu ◽  
F. Meyer
Keyword(s):  
Theoretical Modeling ◽  
State Transitions ◽  
Spectral State

Polarization of atomic ensembles in ionized gases

1988 ◽  
Vol 156 (9) ◽  
pp. 3-46 ◽  
Author(s):  
S.A. Kazantsev ◽  
N.Ya. Polinovskaya ◽  
L.N. Pyatnitskii ◽  
S.A. Edel'man
Keyword(s):  
Atomic Ensembles

scholarly journals Properties of Faint X-ray Activity of XTE J1908+094 in 2019

Galaxies ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 25
Author(s):  
Debjit Chatterjee ◽  
Arghajit Jana ◽  
Kaushik Chatterjee ◽  
Riya Bhowmick ◽  
Sujoy Kumar Nath ◽  
...  
Keyword(s):  
Black Hole ◽  
Temporal Analysis ◽  
Power Density Spectrum ◽  
Periodic Oscillations ◽  
Telescope Array ◽  
Density Spectrum ◽  
X Ray ◽  
Black Hole Candidate ◽  
Short Period ◽  
Spectral State

We study the properties of the faint X-ray activity of Galactic transient black hole candidate XTE J1908+094 during its 2019 outburst. Here, we report the results of detailed spectral and temporal analysis during this outburst using observations from Nuclear Spectroscopic Telescope Array (NuSTAR). We have not observed any quasi-periodic-oscillations (QPOs) in the power density spectrum (PDS). The spectral study suggests that the source remained in the softer (more precisely, in the soft–intermediate) spectral state during this short period of X-ray activity. We notice a faint but broad Fe Kα emission line at around 6.5 keV. We also estimate the probable mass of the black hole to be 6.5−0.7+0.5M⊙, with 90% confidence.

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