Science news articles about 'quantum correlations'

  • Post-Quantum Correlations: Exploring the Limits of Quantum Nonlocality

    ... of study for several decades, nonlocal correlations (for example, quantum entanglement) exist between two objects ... faster than the speed of light (even though quantum correlations cannot be used to communicate faster than the speed ...
  • Quantum guessing game reveals insight into stronger-than-quantum correlations

    ... , a new study has compared the strength of classical and quantum correlations in a simple number guessing game ... in performance. Further, the physicists found that a third form of correlations - post-quantum correlations - could outperform both ...
  • Quantum correlations -- without entanglement

    ... ) -- Few people doubt the "quantumness" of entanglement. Quantifying the quantum correlation of entanglement is something that is relatively ... . However, things change a bit when it comes to quantum correlations other than entanglement. However, there is a growing interest ...
  • Europe gets together to harness quantum physics

    ... between the parties while being sure it has not been eavesdropped in the process. Quantum cryptography uniquely provides a mechanism that gives ... entanglement, in which the state of two particles is quantum correlated so that any attempt to intercept one would ...
  • Physicists Seek Answers to Quantum Correlations

    ... that their results might encourage theorists to come up with new explanations for the strange quantum mechanical effect ...
  • Quantum technologies move a step closer with the demonstration of an 'entanglement' filter

    ... of light (or photons) based on the correlations between their polarisation that are only allowed in the seemingly bizarre quantum world. This so ... information science and technology. Filters that act on the quantum correlations associated with entanglement must operate ...
  • Physicists at UC Santa Barbara make discovery in quantum mechanics

    ... 's issue of the journal Nature. The researchers showed that they could detect the quantum correlations in the results of measurements of entangled ... , using a superconducting electrical circuit. The correlations are stronger than can be obtained using classical (non-quantum mechanical) physics ...
  • UA scientists discover quantum fingerprints of chaos

    ... classical system in some significant ways. One of the most dramatic quantum signatures the team saw in their experiments was directly ... electron and the spin of its nucleus, and those spins can become quantum correlated exactly as the photon polarizations in Einstein ...
  • Not all quantum properties are lost through interaction with the environment

    ... .com. Maniscalco is a researcher at the Turku Centre for Quantum Physics, University of Turku in Finland. Along ... .D. student Laura Mazzola, Maniscalco has identified evidence that some quantum correlations can remain intact ...
  • A study lays the foundations for tomographics applied to the quantum world

    ... and more versatile way. For example, one could think of "compressing" quantum information (qbits) using a tomographic representation of it, according to experts ... control and tomography, quantum correlations and quantum simulation. These five lines of research have relevant scientific ...
  • Magnetism's subatomic roots

    ... -temperature superconductors. This class of materials -- known as "quantum correlated matter" -- also includes more than 10 known ... have aimed to explain the experimentally observed behavior of quantum-correlated materials based upon the strangely ...
  • Simplifying the process of detecting genuine multiparticle entanglement

    ... of experiments and applications. While we have seen evidence for quantum entanglement, it is still difficult to detect unambiguously. Multiparticle quantum correlations are especially important for work with optical ...
  • Quantum knowledge cools computers

    ... „more than complete knowledge" because quantum correlations are stronger than classical correlations. This leads to an entropy less ... energy at all. The researchers prove that "more than complete knowledge" from quantum entanglement with the memory (negative entropy) leads ...
  • U.Va.'s Pfister accomplishes breakthrough toward quantum computing

    ... randomly from one toss to the next. Such correlations are now routinely observed between quantum systems in physics labs ... understood, these limits were circumvented by the use of entanglement, deterministic quantum correlations between systems that behave randomly, individually ...
  • A hidden order unraveled: Microscopic views on quantum fluctuations

    ... phenomena in our everyday lives. Using a high resolution microscope, scientists have now been able to image quantum-correlated particle-hole pairs in a gas ...

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