Results 41 to 50 of about 4,074 (195)
On‐Command Regulation of Kinase Activity using Photonic Stimuli
Moving on up: To better understand the relationship between kinase activity and cellular behaviour, the use of light as an external stimulus to modulate kinase activity with high spatiotemporal resolution has gained increasing interest of late. Herein we highlight the progress made towards the development of light‐responsive kinase enzymes and small ...
Cassandra L. Fleming +2 more
wiley +1 more source
Two-photon photoassociation spectroscopy of the Σ+2 YbLi molecular ground state [PDF]
We report on measurements of the binding energies of several weakly bound vibrational states of the paramagnetic $^{174}$Yb$^{6}$Li molecule in the electronic ground state using two-photon spectroscopy in an ultracold atomic mixture confined in an ...
Alaina M. Green +5 more
semanticscholar +1 more source
Short-range photoassociation of LiRb
We have observed short-range photoassociation of LiRb to the two lowest vibrational states of the $d\,^3 $ potential. These $d\,^3 $ molecules then spontaneously decay to vibrational levels of the $a^3\, ^+$ state with generation rates of $\sim10^3$ molecules per second. This is the first observation of many of these $a\,^3 ^+$ levels.
Blasing, David B. +4 more
openaire +3 more sources
Microscopic electronic structure tomography of Rydberg macrodimers
Precise control and study of molecules is challenging due to the variety of internal degrees of freedom and local coordinates that are typically not controlled in an experiment.
Simon Hollerith +7 more
doaj +1 more source
Photoassociation spectroscopy of ultracold metastable 3He dimers [PDF]
The bound states of the fermionic ^3He(2 ^3S_1)+ ^3He(2 ^3P_j)system, where j=0,1,2, are investigated using the recently available ab initio short-range ${}^{1,3,5} ^{+}_{g,u}$ and ${}^{1,3,5} _{g,u}$ potentials computed by Deguilhem et al. (J. Phys. B: At. Mol. Opt. Phys., 2009, 42, 015102).
Whittingham, Ian +2 more
openaire +4 more sources
Ultracold molecule assembly with photonic crystals
Photoassociation (PA) is a powerful technique to synthesize molecules directly and continuously from cold and ultracold atoms into deeply bound molecular states.
Jesús Pérez-Ríos +2 more
doaj +1 more source
Two-body transients in coupled atomic-molecular BECs [PDF]
We discuss the dynamics of an atomic Bose-Einstein condensate when pairs of atoms are converted into molecules by single-color photoassociation. Three main regimes are found and it is shown that they can be understood on the basis of time-dependent two ...
Julienne, Paul S. +2 more
core +1 more source
Photoassociation of rotating ultra-long range Rydberg molecules [PDF]
We discuss the rotational structure of ultra-long range Rydberg molecules and their angular nuclear wave function. Expressing the complete molecular wave function in a laboratory fixed frame, we derive the transition matrix elements for the ...
O. Thomas, C. Lippe, T. Eichert, H. Ott
semanticscholar +1 more source
Observation of spin-orbit-dependent electron scattering using long-range Rydberg molecules
We present experimental evidence for spin-orbit interaction of an electron as it scatters from a neutral atom. The scattering process takes place within a Rb_{2} ultralong-range Rydberg molecule, consisting of a Rydberg atomic core, a Rydberg electron ...
Markus Deiß +8 more
doaj +1 more source
Photoassociation of Spin-Polarized Hydrogen [PDF]
Using Lyman- $\ensuremath{\alpha}$ spectroscopy we observe photoassociation of spin-polarized hydrogen atoms to bound vibrational levels of the triplet ${a}^{3}{\ensuremath{\Sigma}}_{g}^{+}$ potential. At a density of ${10}^{16}\mathrm{atoms}/{\mathrm{cm}}^{3}$ we directly observe light absorption and fluorescence in the photoassociation process.
A. P. Mosk +3 more
openaire +1 more source

