Results 81 to 90 of about 810,157 (254)

Diffractive Optics for Sensing and Networking with Trapped Ions

open access: yes, 2021
In this thesis I present my contribution towards a quantum communication platform using trapped ions, Fresnel optics, and frequency conversion waveguides.
Blums, Valdis
core   +1 more source

Cooling atomic ions with visible and infra-red light

open access: yesNew Journal of Physics, 2017
We demonstrate the ability to load, cool and detect singly charged calcium ions in a surface electrode trap using only visible and infrared lasers for the trapped-ion control. As opposed to the standard methods of cooling using dipole-allowed transitions,
F Lindenfelser   +4 more
doaj   +1 more source

Recent insights into the molecular mechanism of ubiquinol oxidation by cytochrome bc1

open access: yesFEBS Open Bio, EarlyView.
The review reflects on the mechanism of the catalytic reaction in cytochrome bc1: the electron bifurcation that involves the separation of two electrons derived from the quinol oxidation to opposite sides of the enzyme across the membrane. This review summarizes the long‐standing effort to understand the mechanism of quinol oxidation catalyzed by ...
Anna Wójcik‐Augustyn   +2 more
wiley   +1 more source

Towards long-distance quantum communication using trapped ions and frequency qubits

open access: yes, 2019
Downloading of the abstract is permitted for personal use only. Quantum communication requires long-lived memories and robust communication qubits. Long-lived memories and high fidelity two qubit gates are demonstrated using atomic qubits.
Ghadimi, M   +11 more
core   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

Trapped-ion quantum logic with global radiation fields

open access: yes, 2016
Trapped ions are a promising tool for building a large-scale quantum computer. However, the number of required radiation fields for the realization of quantum gates in any proposed ion-based architecture scales with the number of ions within the quantum ...
Sebastian Weidt (4461898)   +9 more
core   +1 more source

Observation of Cold Collisions between Trapped Ions and Trapped Atoms

open access: yes, 2008
We study cold collisions between trapped ions and trapped atoms in the semiclassical (Langevin) regime. Using Yb(+) ions confined in a Paul trap and Yb atoms in a magneto-optical trap, we investigate charge-exchange collisions of several isotopes over ...
Grier, Andrew Todd   +7 more
core   +1 more source

Dual trapped-ion quantum simulators: an alternative route towards exotic quantum magnets

open access: yesNew Journal of Physics, 2016
We present a route towards the quantum simulation of exotic quantum magnetism in ion traps by exploiting dual relations between different spin models. Our strategy allows one to start from Hamiltonians that can be realized with current technology, while ...
Tobias Graß   +2 more
doaj   +1 more source

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Immobilization of heavy metals in cementitious matrices

open access: yesJournal of Saudi Chemical Society, 2011
Cementitious materials (CMs) have been prepared from treated clay powder (TCP) and excess lime. For comparison, ordinary Portland cement (OPC) has also been used to see entrapment capacity of the CMs for target metal ions.
Md. Ahsan Habib   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy