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Fingerprints of quantum entanglement

Quantum entanglement is a key feature of quantum computing. Yet, how can researchers verify that a quantum computer actually incorporates large-scale entanglement? Conventional methods require a large number of repeated measurements, ...

dateFeb 15, 2018 in Quantum Physics
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New input for quantum simulations

An international group of researchers, including UvA physicist Michael Walter, have devised new methods to create interesting input states for quantum computations and simulations. The new methods can be used to simulate ...

dateJan 22, 2018 in Quantum Physics
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Single-photon detector can count to four

Engineers have shown that a widely used method of detecting single photons can also count the presence of at least four photons at a time. The researchers say this discovery will unlock new capabilities in physics labs working ...

dateDec 15, 2017 in Quantum Physics
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Sensing atoms caught in ripples of light

Optical fibers are ubiquitous, carrying light wherever it is needed. These glass tunnels are the high-speed railway of information transit, moving data at incredible speeds over tremendous distances. Fibers are also thin ...

dateSep 27, 2017 in Optics & Photonics
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A way to measure and control phonons

(Phys.org)—A team of researchers with the University of Vienna in Austria and Delft University of Technology in the Netherlands has developed a technique using photons for controlling and measuring phonons. In their paper ...

dateSep 22, 2017 in Quantum Physics report
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Majorana highway on a chip

The first experimental evidence of a Majorana fermion in Delft 2012 led to a wave of scientific enthusiasm: control such particles are a holy grail in quantum science and technology. Quantum chips based on Majorana fermions ...

dateJul 07, 2017 in Nanophysics
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