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Showing 1–17 of 17 results
Advanced filters: Author: Eugene Polzik Clear advanced filters

  • Engineering quantum correlations between light modes at different frequency would open new avenues for quantum networks and sensing. Here, the authors propose and demonstrate a way for obtaining high-purity strongly entangled continuous variable states with more than 200 nm difference in wavelength.

    • Tulio Brito Brasil
    • Valeriy Novikov
    • Eugene S. Polzik
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-5

  • Champion experimentalist of quantum optics and squeezed-light pioneer has sadly passed away.

    • Eugene Polzik
    • Jun Ye
    Comments & Opinion
    Nature Photonics
    Volume: 19, P: 120-121

  • A hybrid quantum network combining entangled light with an atomic spin ensemble engineered to act as a negative-mass oscillator enables frequency-dependent quantum noise reduction for measurements in the acoustic noise frequency range relevant for gravitational-wave detection.

    • Valeriy Novikov
    • Jun Jia
    • Eugene Simon Polzik
    ResearchOpen Access
    Nature
    Volume: 643, P: 955-960

  • After 20 years of hard labour, squeezed states — light and matter whose quantum fluctuations have been arduously suppressed below standard levels of quantum noise — are coming of age and are ripe for application.

    • Eugene S. Polzik
    News & Views
    Nature
    Volume: 453, P: 45-46

  • The authors demonstrated an unprecedented level of polarization squeezing of light generated by an atomic ensemble, and a new regime of continuous quantum measurements on a macroscopic material oscillator.

    • Christian Bærentsen
    • Sergey A. Fedorov
    • Eugene S. Polzik
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7

  • Realising a quantum-backaction-limited oscillator in the acoustic frequency range would have applications in sensing and metrology. Here, the authors reach this goal by demonstrating destructive interference between quantum back-action noise and shot noise down to sub-kHz range in a warm atomic vapor cell.

    • Jun Jia
    • Valeriy Novikov
    • Eugene S. Polzik
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10

  • Room-temperature single photon sources with memory capabilities are promising for quantum information processing, but are currently limited in their memory time or photon purity. Here, the authors report single photon emission with good antibunching from an atomic vapour cell source with 0.68 ms memory time.

    • Karsten B. Dideriksen
    • Rebecca Schmieg
    • Eugene S. Polzik
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Einstein–Podolsky–Rosen entanglement between a millimetre-size mechanical membrane oscillator and a collective atomic spin oscillator formed by an ensemble of caesium atoms is achieved, although the two systems are spatially separated by one metre.

    • Rodrigo A. Thomas
    • Michał Parniak
    • Eugene S. Polzik
    Research
    Nature Physics
    Volume: 17, P: 228-233

  • Quantum teleportation has been previously demonstrated between objects of the same nature, such as light pulses or material particles. But this paper demonstrates teleportation between objects of a different nature: a quantum state encoded in a light pulse is teleported onto an atomic ensemble containing 1012 caesium atoms.

    • Jacob F. Sherson
    • Hanna Krauter
    • Eugene S. Polzik
    Research
    Nature
    Volume: 443, P: 557-560

  • A trapped ion emits a photon. Ion and photon are entangled, so the photon carries away information on the state of the ion. Now realized, this system could become a communication link in a quantum network.

    • Eugene Polzik
    News & Views
    Nature
    Volume: 428, P: 129-130

  • Quantum communications rely on efficient quantum networks, which have been improved by quantum memory schemes. The paper reports on an experimental progress towards a heralded single photon source using a warm vapour cell, and demonstrates the feasibility of a quantum repeater scheme at room temperature.

    • Michael Zugenmaier
    • Karsten B. Dideriksen
    • Eugene S. Polzik
    ResearchOpen Access
    Communications Physics
    Volume: 1, P: 1-7