New approach transports trapped ions to create entangling gates

Trapped ions excited with a laser beam can be used to create entangled qubits in quantum information systems, but addressing several stationary pairs of ions in a trap requires multiple optical switches and complex controls. ...

How confined protons migrate

Protons (H+) and hydronium ions (H3O+) in free aqueous solutions seem to migrate faster than other ions due to the the Grotthuss-mechanism. Individual protons do not really migrate at all. Instead, bonds of the hydronium ...

Ion and lipid transporters specialize for their niche

Cell viability requires that a variety of functions at the cell membrane are maintained properly. P-type ATPases translocate substrates across the membrane, and they have evolved into different types taking care of specific ...

Scaling down ionic transistors to the ultimate limit

The human brain is a vast network of billions of biological cells called neurons which fires electrical signals that process information, resulting in our senses and thoughts. The ion channels of atomic scale in each neuron ...

Graphene electrodes for better-performance supercapacitors

Recently, a research group led by Prof. Wang Zhenyang from the Institute of Solid State Physics of the Hefei Institutes of Physical Science (HFIPS) reported a novel method to prepare high-performance supercapacitors with ...

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