Category Archives: Optics

A single photon can be in as many as four places at the same time

Vladan Vuletic, “Quantum physics: Entangled quartet,” News & Views, Nature 468: 384–385, 18 November 2010, summarizes the paper K. S. Choi, A. Goban, S. B. Papp, S. J. van Enk & H. J. Kimble, “Entanglement of spin waves among four … Continue reading

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Quantum computers protected by space-time cloaking devices

Quantum computers are very fragile devices, the accidental observation of any quantum property can disrupt calculations before they have been completed. ¿Could a quantum computer be hidden inside a protecting spatiotemporal cloaking device? Such is the proposal of Ortwin Hess, a researcher … Continue reading

Posted in News, Optics, Physics, Quantum Computers, Quantum Mechanics, Science, Theoretical Proposal | Tagged , | 2 Comments