European Physical Journal B

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On-demand conductivity for graphene nanoribbons

Physicists have, for the first time, explored in detail the time evolution of the conductivity, as well as other quantum-level electron transport characteristics, of a graphene device subjected to periodic ultra-short pulses. ...

dateNov 10, 2014 in Nanophysics
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Unleashing the power of quantum dot triplets

Quantum computers have yet to materialise. Yet, scientists are making progress in devising suitable means of making such computers faster. One such approach relies on quantum dots—a kind of artificial atom, easily controlled ...

dateJul 24, 2014 in Quantum Physics
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Taming neural excitations

What do lasers, neural networks, and spreading epidemics have in common? They share a most basic feature whereby an initial pulse can propagate through a medium - be it physical, biological or socio-economic, respectively. ...

dateDec 03, 2014 in General Physics
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Graphene nanoribbons as electronic switches

One of graphene's most sought-after properties is its high conductivity. Argentinian and Brazilian physicists have now successfully calculated the conditions of the transport, or conductance mechanisms, in graphene nanoribbons. ...

dateApr 08, 2014 in Nanophysics
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Bottom-up insight into crowd dynamics

Stampedes unfortunately occur on too regular a basis. Previously, physicists developed numerous models of crowd evacuation dynamics. Their analyses focused on disasters such as the yearly Muslim Hajj or of the Love Parade ...

dateFeb 07, 2014 in General Physics
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