High nonclassical correlations of large-bandwidth photon pairs generated in warm atomic vapor

J Mika, L Slodička - Journal of Physics B: Atomic, Molecular and …, 2020 - iopscience.iop.org
Generation of nonclassical light suitable for interaction with atoms corresponds to a crucial
goal pursued across the broad quantum optics community. We present the generation of …

Nonclassical photon pairs from warm atomic vapor using a single driving laser

L Podhora, P Obšil, I Straka, M Ježek, L Slodička - Optics Express, 2017 - opg.optica.org
Generation of nonclassical light is an essential tool for quantum optics research and
applications in quantum information technology. We present realization of the source of …

Observation of nonclassical correlations in biphotons generated from an ensemble of pure two-level atoms

MO Araújo, LS Marinho, D Felinto - Physical Review Letters, 2022 - APS
We report the experimental verification of nonclassical correlations for an unfiltered
spontaneous four-wave mixing process in an ensemble of cold two-level atoms, confirming …

Generation of frequency-correlated narrowband biphotons from four-wave mixing in cold atoms

S Yun, J Wen, P Xu, M Xiao, SN Zhu - Physical Review A—Atomic, Molecular …, 2010 - APS
Generation of frequency-correlated narrowband biphotons from the four-wave mixing
process is theoretically analyzed through manipulating optical properties of light …

Enhancing nonclassical correlations for light scattered by an ensemble of cold two-level atoms

LS Marinho, MO Araújo, W Martins, D Felinto - Optics Letters, 2023 - opg.optica.org
We report the enhancement of quantum correlations for biphotons generated via
spontaneous four-wave mixing in an ensemble of cold two-level atoms. This enhancement is …

Long-lived non-classical correlations towards quantum communication at room temperature

M Zugenmaier, KB Dideriksen, AS Sørensen… - Communications …, 2018 - nature.com
Heralded single-photon sources with on-demand readout are a key enabling technology for
distributed photonic networks. Such sources have been demonstrated in both cryogenic …

Shaping biphoton temporal waveforms with modulated classical fields

JF Chen, S Zhang, H Yan, MMT Loy, GKL Wong, S Du - Physical review letters, 2010 - APS
We experimentally demonstrate a technique for shaping the temporal quantum waveform of
narrow-band biphotons generated in a cold atomic ensemble via four-wave mixing by …

Engineering frequency-time quantum correlation of narrow-band biphotons from cold atoms

YW Cho, KK Park, JC Lee, YH Kim - Physical review letters, 2014 - APS
The nonclassical photon pair, generated via a parametric process, is naturally endowed with
a specific form of frequency-time quantum correlations. Here, we report complete control of …

Non-degenerate nonclassical photon pairs in a hot atomic ensemble

QF Chen, BS Shi, M Feng, YS Zhang, GC Guo - Optics Express, 2008 - opg.optica.org
We experimentally demonstrate the generation of non-degenerate nonclassical paired
photons in a hot atomic ensemble using off-axis four-wave mixing. The time-resolved …

Photon pairs with coherence time exceeding 1 μs

L Zhao, X Guo, C Liu, Y Sun, MMT Loy, S Du - Optica, 2014 - opg.optica.org
The generation of nonclassical photon pairs with a long coherence time is key for
applications that range from fundamental to quantum communication and metrology …