Results 31 to 40 of about 325,805 (288)
Bright Source of Cold Ions for Surface-Electrode Traps [PDF]
, 2007 We produce large numbers of low-energy ions by photoionization of laser-cooled atoms inside a surface-electrode-based Paul trap. The isotope-selective trap loading rate of $4\times10^{5}$ Yb$^{+}$ ions/s exceeds that attained by photoionization (electron
Andrew Grier +9 more
core +2 more sources
Artificial atoms from cold bosons in one dimension
New Journal of Physics, 2022 We investigate the ground-state properties of weakly repulsive one-dimensional bosons in the presence of an attractive zero-range impurity potential. First, we derive mean-field solutions to the problem on a finite ring for the two asymptotic cases: (i ...
Fabian Brauneis +5 more
doaj +1 more source
Self-Organization in Cold Atoms Mediated by Diffractive Coupling
Atoms, 2021 This article discusses self-organization in cold atoms via light-mediated interactions induced by feedback from a single retro-reflecting mirror. Diffractive dephasing between the pump beam and the spontaneous sidebands selects the lattice period ...
Thorsten Ackemann +10 more
doaj +1 more source
The separation between mRNA‐ends is more variable than expected
FEBS Open BioEffective circularization of mRNA molecules is a key step for the efficient initiation of translation. Research has shown that the intrinsic separation of the ends of mRNA molecules is rather small, suggesting that intramolecular arrangements could ...
Nancy Gerling +3 more
doaj +1 more source
Quantum simulation of non-trivial topology
New Journal of Physics, 2015 We propose several designs to simulate quantum many-body systems in manifolds with a non-trivial topology. The key idea is to create a synthetic lattice combining real-space and internal degrees of freedom via a suitable use of induced hoppings.
Octavi Boada +4 more
doaj +1 more source
Combined ion and atom trap for low temperature ion-atom physics
, 2011 We report an experimental apparatus and technique which simultaneously traps ions and cold atoms with spatial overlap. Such an apparatus is motivated by the study of ion-atom processes at temperatures ranging from hot to ultra-cold.
A. Drakoudis +25 more
core +1 more source
Journal of Computational and Theoretical Nanoscience, 2011 We discuss a laser-trapped cold-atom superfluid qubit system. Each qubit is proposed as a macroscopic two-state system based on a set of Bose-Einstein condensate (BEC) currents circulating in a ring, cut with a Josephson barrier. We review the effective low energy description of a single BEC ring.
Solenov, Dmitry, Mozyrsky, Dmitry
openaire +2 more sources
Molecular Oncology, EarlyView.Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié +16 more
wiley +1 more source
Observation of effects of inter-atomic interaction on Autler–Townes splitting in cold Rydberg atoms
New Journal of PhysicsWe demonstrate the effect of inter-atomic interaction in highly excited Rydberg atoms via Autler–Townes (AT) splitting in cold atoms. We measure the AT splitting of the $\{5S_{1/2}, F = 2\} \rightarrow \{5P_{3/2}, F^{^{\prime}} = 3\}$ transition of ^87 ...
Silpa Baburaj Sheela +5 more
doaj +1 more source
A minimalistic and optimized conveyor belt for neutral atoms
, 2017 Here we report of a design and the performance of an optimized micro-fabricated conveyor belt for precise and adiabatic transportation of cold atoms. A theoretical model is presented to determine optimal currents in conductors used for the transportation.
Condylis, Paul C. +4 more
core +2 more sources