Results 31 to 40 of about 396,987 (209)

Electron-nuclear correlated multiphoton-route to Rydberg fragments of molecules

open access: yesNature Communications, 2019
Rydberg atoms can be created from photoexcitation of molecules using intense ultrafast laser pulses. Here the authors use a coincidence detection of electrons, ion and excited Rydberg atoms and their energy sharing to reveal the general mechanism of ...
Wenbin Zhang   +11 more
doaj   +1 more source

Observation of blackbody radiation enhanced superradiance in ultracold Rydberg gases

open access: yesNew Journal of Physics, 2021
An ensemble of excited atoms can synchronize emission of light collectively in a process known as superradiance when its characteristic size is smaller than the wavelength of emitted photons.
Liping Hao   +8 more
doaj   +1 more source

Ultralong-range molecule engineering via Rydberg dressing

open access: yesPhysical Review Research, 2020
In 2000, three pioneering papers launched a new era in Rydberg physics. One predicted the blockade mechanism where extremely large Rydberg-Rydberg interactions only allow a single excitation in a given volume.
Jia Wang, Robin Côté
doaj   +1 more source

Ultracold Chemical Reactions of a Single Rydberg Atom in a Dense Gas

open access: yesPhysical Review X, 2016
Within a dense environment (ρ≈10^{14}  atoms/cm^{3}) at ultracold temperatures (T140 compared to 1  μs at n=90. In addition, a second observed reaction mechanism, namely, Rb_{2}^{+} molecule formation, was studied.
Michael Schlagmüller   +12 more
doaj   +1 more source

Rabi oscillations and entanglement between two atoms interacting by the Rydberg blockade studied by the Jaynes–Cummings Model

open access: yesPhysics Open
The interaction between atoms and a quantized radiation field is fundamentally important in quantum optics and quantum information science. Due to their unusual properties, Rydberg atoms are promising building blocks for two-qubit gates and atom-light ...
Francisco D. Santillan, Andreas Hanke
doaj   +1 more source

Exotic Chemistry with Ultracold Rydberg Atoms

open access: yesCHIMIA, 2016
We review recent experiments carried out with dense (1012 cm–3) ultracold (T = 40 ?K) samples of Cs atoms which have the goal to characterize, by high-resolution spectroscopy, the interactions between Cs atoms, Cs+ ions and electrons that lead to the formation of metastable long-range molecules.
Saßmannshausen H.   +2 more
openaire   +6 more sources

VUV/EUV ionising radiation and atoms and ions: dual laser plasma investigations [PDF]

open access: yes, 2004
The interaction of ionising radiation with atoms and ions is a key fundamental process. This report concentrates on studies of photoexcitation/photoionisation using laser-produced plasmas as continuum sources and synchronised laser plasma plumes to ...
Costello, John T.   +3 more
core   +1 more source

Two-Photon Laser Excitation of Rb Rydberg Atoms in the Magneto-Optical Trap and Vapor Cell

open access: yesPhotonics, 2023
We present our experimental results of two-photon laser excitation 5S1/2→5P3/2→nS1/2 of Rb atoms to Rydberg nS1/2 states with a homemade 480 nm laser in the second excitation step.
Denis B. Tretyakov   +6 more
doaj   +1 more source

Search for high-frequency gravitational waves with Rydberg atoms

open access: yesEuropean Physical Journal C: Particles and Fields
We propose high-frequency gravitational wave (GW) detectors with Rydberg atoms. Rydberg atoms are ultra-sensitive detectors of electric fields. By setting up a constant magnetic field, a weak electric field is generated upon the arrival of GWs.
Sugumi Kanno, Jiro Soda, Akira Taniguchi
doaj   +1 more source

A weakly-interacting many-body system of Rydberg polaritons based on electromagnetically induced transparency

open access: yesCommunications Physics, 2021
Rydberg-state atoms are characterized by significant dipole–dipole interaction making them useful for quantum information applications. The authors present experimental results on a high-optical-depth electromagnetically-induced-transparency medium of ...
Bongjune Kim   +11 more
doaj   +1 more source

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