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Advanced filters: Author: Vlatko Vedral Clear advanced filters

  • In the midst of the COVID-19 pandemic, science is crucial to inform public policy. At the same time, mistrust of scientists and misinformation about scientific facts are rampant. Six scientists, actively involved in outreach, reflect on how to build a better understanding and trust of science.

    • Katherine Mack
    • Karl Kruszelnicki
    • Vlatko Vedral
    Reviews
    Nature Reviews Physics
    Volume: 2, P: 282-284

  • Physicists should rethink interference experiments to reveal whether or not general relativity follows classical theory, argue Chiara Marletto and Vlatko Vedral.

    • Chiara Marletto
    • Vlatko Vedral
    Comments & Opinion
    Nature
    Volume: 547, P: 156-158

  • Description of a qubit following an open time-like curve usually incurs into conceptual problems such as violation of entanglement monogamy. Here, the authors show how to use the formalism of pseudo-density operators to describe such a process, showing a proof-of-principle experimental simulation.

    • Chiara Marletto
    • Vlatko Vedral
    • Marco Genovese
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-7

  • Quantum phase transitions are generally associated with many-body quantum systems undergoing changes between different phases. This study examines the connection between such phase transitions and quantum information processing, and finds that different quantum phases can have different computational power.

    • Jian Cui
    • Mile Gu
    • Vlatko Vedral
    Research
    Nature Communications
    Volume: 3, P: 1-6

  • Stochastic processes play an important role in a broad range of scientific problems. This study demonstrates that a large class of such processes are most efficiently simulated by quantum mechanical models, thus reducing the complexity required to simulate them using classical models.

    • Mile Gu
    • Karoline Wiesner
    • Vlatko Vedral
    Research
    Nature Communications
    Volume: 3, P: 1-5

  • Quantum entanglement has been observed at low temperatures in both microscopic and macroscopic systems. It now seems that the effect can also occur at high temperatures if the systems are not in thermal equilibrium.

    • Vlatko Vedral
    News & Views
    Nature
    Volume: 468, P: 769-770

  • Quantum discord is the total non-classical correlation between two systems. This includes, but is not limited to, entanglement. Photonic experiments now demonstrate that separable states with non-zero quantum discord are a useful resource for quantum information processing and can even outperform entangled states.

    • Borivoje Dakić
    • Yannick Ole Lipp
    • Philip Walther
    Research
    Nature Physics
    Volume: 8, P: 666-670

  • Entanglement is not the only type of quantum correlation. Quantum discord is a broader measure of such non-classical interactions. An experimental investigation now shows how quantum discord can be consumed to encode information, even in the absence of entanglement.

    • Mile Gu
    • Helen M. Chrzanowski
    • Ping Koy Lam
    Research
    Nature Physics
    Volume: 8, P: 671-675

  • Recent advances in quantum information theory reveal the deep connections between entanglement and thermodynamics, many-body theory, quantum computing and its link to macroscopicity.

    • Vlatko Vedral
    Comments & Opinion
    Nature Physics
    Volume: 10, P: 256-258

  • Entanglement is a quantum phenomenon usually associated with the microscopic world. Now it is clear that its effects are also relevant on macroscopic scales, such as in the magnetic properties of some solids.

    • Vlatko Vedral
    News & Views
    Nature
    Volume: 425, P: 28-29

  • Quantum coherence represents one of the most fundamental features in quantum mechanics and is closely linked to the concept of wave-particle duality. The authors report an experimental realisation which proves the relation between coherence and path information as recently derived theoretically.

    • Jun Gao
    • Zhi-Qiang Jiao
    • Xian-Min Jin
    ResearchOpen Access
    Communications Physics
    Volume: 1, P: 1-6

  • Modern computation relies on modular architectures, breaking a complex algorithm into self-contained subroutines, whereas current quantum computers do not have such capability. Here, the authors provide an experimental demonstration of a modular quantum computation protocol using a trapped Yb ion.

    • Kuan Zhang
    • Jayne Thompson
    • Kihwan Kim
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6

  • In quantum mechanics, the uncertainty principle is considered a limiting factor forbidding a system from being in a state where all possible measurements have perfectly predictable outcomes. Here, Dahlsten et al. show its positive role as the enabler of non-classical dynamics in an interferometer.

    • Oscar C. O. Dahlsten
    • Andrew J. P. Garner
    • Vlatko Vedral
    Research
    Nature Communications
    Volume: 5, P: 1-7

  • Entanglement, a mind-boggling form of correlations that exist between objects in the quantum world, is helping to explain phenomena and jazzing up computing. But it looks as if much more may be in store.

    • Vlatko Vedral
    Comments & Opinion
    Nature
    Volume: 439, P: 397