Results 51 to 60 of about 2,536 (203)

Ultracold Molecules: The Effect of Electromagnetic Fields [PDF]

, 2010
There is great interest within the physics and chemistry communities in the properties of ultracold molecules. Electromagnetic fields can be used to create, trap, and modify the collisional dynamics of ultracold molecules, and thus the properties of ...
Wallis, Alisdair Owen Garnett, WALLIS, ALISDAIR,OWEN,GARNETT   +1 more
core  

Critical Limitations in Cryogenic Laser Cooling of Solids: Symmetry‐Related Fluorescence Trapping and Condensation‐Induced Parasitic Heating

Advanced Science, Volume 13, Issue 19, 2 April 2026.
This study uncovers two overlooked bottlenecks in cryogenic laser cooling of solids: symmetry‐driven fluorescence trapping and water vapor condensation. We demonstrate that breaking sample symmetry enhances fluorescence escape, while condensation dominates parasitic heating below 135 K.
Biao Zhong, Jiayi Zhang, Haodong Yang, Lianzhong Deng, Mauro Tonelli, Ercang Luo   +5 more
wiley   +1 more source

Towards Ultracold Organic Chemistry: Prospects of Laser Cooling Large Organic Molecules

, 2020
Ultracold organic chemistry enables studies of reaction dynamics and mechanisms in quantum regime. Access to ultracold molecules hinges on the ability to efficiently scattermultiple photons via quasi-closed cycling transitions and, in practice, is ...
Anna I., Krylov, Maxim, Ivanov, Felix, Bangerter, Paweł, Wójcik   +3 more
core   +1 more source

Überresonant Scattering of Ultracold Molecules

, 2012
Compared to purely atomic collisions, ultracold molecular collisions potentially support a much larger number of Fano-Feshbach resonances due to the enormous number of ro-vibrational states available. In fact, for alkali-metal dimers we find that the resulting density of resonances cannot be resolved at all, even on the sub-$μ$K temperature scale of ...
Mayle, Michael, Quéméner, Goulven, Ruzic, Brandon P., Bohn, John L.   +3 more
openaire   +2 more sources

Behavioral Selection of Coprophagy in an Arid‐Adapted Herbivore: Does a Compatibility–Risk Gradient Shape Selective Coprophagy?

Ecology and Evolution, Volume 16, Issue 4, April 2026.
Estimated amount of each scat type consumed by Texas tortoises (Gopherus berlandieri) during 48‐h feeding trials expressed as area under the cumulative‐consumption curve (AUC; ±95% CI). Coprophagy is prevalent in Texas tortoises, and tortoises selectively choose feces along a compatibility‐risk gradient, which is evolutionarily meaningful.
Christin Moeller, Scott E. Henke, Sandra Rideout‐Hanzak, Cord B. Eversole   +3 more
wiley   +1 more source

Quantum-State-Controlled Collisions of Ultracold Polyatomic Molecules

Physical Review X
Collisions between ultracold calcium monohydroxide (CaOH) molecules are realized and studied. Inelastic collision rate constants are measured for CaOH prepared in ground and excited vibrational states, and the electric field dependence of these rates is ...
Nathaniel B. Vilas, Paige Robichaud, Christian Hallas, Junheng Tao, Loïc Anderegg, Grace K. Li, Hana Lampson, Lucie D. Augustovičová, John L. Bohn, John M. Doyle   +9 more
doaj   +1 more source

Landscape Genomic Analyses of Quercus agrifolia Née Predict Patterns of Adaptedness to Future Climate and Provide Guidance for Conservation

Evolutionary Applications, Volume 19, Issue 4, April 2026.
ABSTRACT Habitat destruction and climate change are two primary drivers of global biodiversity loss. Many contemporary ecological preserves and preserve networks are designed to protect species and the ecological and evolutionary processes that will maintain future biodiversity.
Ryan C. Buck, H. Scott Butterfield, Elizabeth Hiroyasu, Jeanette Howard, John Knapp, Zachary Principe, Victoria L. Sork   +6 more
wiley   +1 more source

Formation of ultracold RbCs molecules by photoassociation [PDF]

Laser Physics, 2012
The formation of ultracold metastable RbCs molecules is observed in a double species magneto-optical trap through photoassociation below the ^85Rb(5S_1/2)+^133Cs(6P_3/2) dissociation limit followed by spontaneous emission. The molecules are detected by resonance enhanced two-photon ionization.
BouloufaMaafa N, Aymar M, Dulieu O, Gabbanini C   +3 more
openaire   +4 more sources

A Novel Fibroblast Activation Protein‐Based Algorithm to Assess Fibrosis in Metabolic Dysfunction–Associated Steatotic Liver Disease

Journal of Gastroenterology and Hepatology, Volume 41, Issue 4, Page 1311-1322, April 2026.
To improve triage for liver fibrosis in MASLD primary care and where elastography is unavailable, a novel algorithm, FAP Index, that requires one fibrogenesis‐relevant, rapid enzyme assay, was devised and validated. FAP Index increased advanced fibrosis risk stratification accuracy by greatly reducing the frequency of indeterminate results compared to ...
Ziqi V. Wang, Badwi B. Boumelhem, Torsten Pennell, William W. Bachovchin, Jack Hung‐Sen Lai, Sarah E. Poplawski, Harsha Chandraratna, Pieter Van Der Veken, Kate Brewer, Diana Julie Leeming, Geraldine Ooi, Jacob George, Mohammed Eslam, Leon A. Adams, Hui Emma Zhang, Geoffrey W. McCaughan, Avik Majumdar, Mark D. Gorrell   +17 more
wiley   +1 more source

An approach to spin-resolved molecular gas microscopy

New Journal of Physics, 2018
Ultracold polar molecules are an ideal platform for studying many-body physics with long-range dipolar interactions. Experiments in this field have progressed enormously, and several groups are pursuing advanced apparatus for manipulation of molecules ...
Jacob P Covey, Luigi De Marco, Óscar L Acevedo, Ana Maria Rey, Jun Ye   +4 more
doaj   +1 more source