How does our classical world emerge from the counterintuitive principles of quantum theory? Can we even be sure that the world doesn't 'go quantum' when no one is watching? Philip Ball talks to the ...
... approaching. Up to now, each time the codemakers made a better mousetrap, codebreakers breed a better mouse. But quantum cryptography theoretically could outpace the codebreakers and win the race...
... that would yield an improved value for the Rydberg constant. Such a measurement would be so sensitive that it could reveal anomalies in quantum electrodynamics, the modern theory of the atom.
... that essentially places it in all three boxes simultaneously, through a phenomenon known as quantum superposition. In effect, there is an equal chance of the particle turning up in any one of the ...
... years since then, there have been enormous advances in the ability to produce and manipulate quantum matter, which were recognized by the awarding of several Nobel Prizes in physics.
"The conference ...
... it is subject to a certain level of energy loss. But what if you could create low-energy quantum access memory (QRAM) that would not only work in terms of quantum computing, but that could also be ...
Computers based on the powerful properties of quantum mechanics have the potential to revolutionize information technology and security, but for decades they have remained more theoretical than ...
Quantum cryptography has been regarded as 100-percent protection against attacks on sensitive data traffic. But now a research team in Sweden has found a hole in this advanced technology. The risk of ...
“Precise lithographic alignment to site-controlled quantum dots is of major importance for numerous nano-photonic, nano-electronic and nano-spintronic devices,” Sven Höfling tells PhysOrg.com.
... LED that produces intense, blue light. Coat it with a thin layer of special microscopic beads called quantum dots. And you have what could become the successor to the venerable light bulb.
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... a simpler and potentially lower-cost method for distributing strings of digits, or “keys,” for use in quantum cryptography, the most secure method of transmitting data. The new “quantum key ...
... only on the rate of measurement – not on the actual results of these measurements.
How can these effects of quantum measurements be explained? As opposed to classical measurement, which may be ...
... of processing power. The conference heard about new experiments with superconducting quantum circuits, which could be used in future for novel integrated circuits involving quantum effects, a ...
Researchers from the Physikalisches Institut of the University of Stuttgart have create entangled quantum states in diamond, which means there is finally a diamond men care about - namely the one that ...
... 's experiment is more than a pretty measurement—there are indications that you could use this in quantum computing applications," Ferry says.
Their findings could also have important implications ...
