Physics

  • Article |

    A weakly ionized gas jet impinging on a water surface is shown to produce a more stable cavity than does a neutral gas jet, with implications for plasma–liquid interactions.

    • Sanghoo Park
    • , Wonho Choe
    •  & Uroš Cvelbar
  • Article |

    Using germanium quantum dots, a four-qubit processor capable of single-, two-, three-, and four-qubit gates, demonstrated by the creation of four-qubit Greenberger−Horne−Zeilinger states, is the largest yet realized with solid-state electron spins.

    • Nico W. Hendrickx
    • , William I. L. Lawrie
    •  & Menno Veldhorst
  • Article
    | Open Access

    A nondestructive detector of photonic qubits, comprising a single 87Rb atom trapped in the centre point of two crossed fibre-based optical resonators, is demonstrated.

    • Dominik Niemietz
    • , Pau Farrera
    •  & Gerhard Rempe
  • Article |

    A reinforcement learning experiment using a programmable integrated nanophotonic processor shows that a quantum communication channel with the environment speeds up the learning process of an agent.

    • V. Saggio
    • , B. E. Asenbeck
    •  & P. Walther
  • Article |

    A large electronic display textile that is flexible, breathable and withstands repeated machine-washing is integrated with a keyboard and power supply to create a wearable, durable communication tool.

    • Xiang Shi
    • , Yong Zuo
    •  & Huisheng Peng
  • Article |

    The binding of multidentate ligands to the surface of lead halide perovskite nanocrystals suppresses the formation of surface defects that result in halide segregation, yielding materials with efficient and colour-stable red emission.

    • Yasser Hassan
    • , Jong Hyun Park
    •  & Henry J. Snaith
  • Article |

    High-fidelity deterministic quantum state transfer and multi-qubit entanglement are demonstrated in a quantum network comprising two superconducting quantum nodes one metre apart, with each node including three interconnected qubits.

    • Youpeng Zhong
    • , Hung-Shen Chang
    •  & Andrew N. Cleland
  • Article |

    Quark–antiquark annihilation measurements provide a precise determination of the ratio of down and up antiquarks within protons as a function of momentum, which confirms the asymmetry between the abundance of down and up antiquarks.

    • J. Dove
    • , B. Kerns
    •  & Z. Ye
  • Article |

    γ-ray spectroscopy experiments on the origin of spin in the products of nuclear fission of spin-zero nuclei suggest that the fission fragments acquire their spin after scission, rather than before.

    • J. N. Wilson
    • , D. Thisse
    •  & S. Ziliani
  • Article
    | Open Access

    Suitably shaped X-ray pulses are used to coherently steer the quantum dynamics of atoms’ nuclei rather than their electrons, with few-zeptosecond temporal stability of the phase control.

    • Kilian P. Heeg
    • , Andreas Kaldun
    •  & Jörg Evers
  • Article |

    A quantum enhanced search for dark matter that uses vacuum squeezing to overcome the quantum noise limit finds no evidence of dark matter axions in a well motivated mass range.

    • K. M. Backes
    • , D. A. Palken
    •  & H. Wang
  • Article |

    Dispersion of colloidal disks in a nematic liquid crystal reveals several low-symmetry phases, including monoclinic colloidal nematic order, with interchange between them achieved through variations in temperature, concentration and surface charge.

    • Haridas Mundoor
    • , Jin-Sheng Wu
    •  & Ivan I. Smalyukh
  • Article |

    A compact, high-performance silicon photonics-based light detection and ranging system for three-dimensional imaging is developed that should be amenable to low-cost mass manufacturing

    • Christopher Rogers
    • , Alexander Y. Piggott
    •  & Remus Nicolaescu
  • Article |

    A family of topological antiferromagnetic spin textures is realized at room temperature in α-Fe2O3, and their reversible and field-free stabilization using a Kibble–Zurek-like temperature cycling is demonstrated.

    • Hariom Jani
    • , Jheng-Cyuan Lin
    •  & Paolo G. Radaelli
  • Article
    | Open Access

    The 2S–2P transitions in muonic helium-4 ions are measured using laser spectroscopy and used to obtain an α-particle charge-radius value five times more precise than that from electron scattering.

    • Julian J. Krauth
    • , Karsten Schuhmann
    •  & Franz Kottmann
  • Article |

    X-ray diffraction measurements of solid carbon compressed to pressures of about two terapascals (approximately twenty million atmospheres) find that carbon retains a diamond structure even under these extreme conditions.

    • A. Lazicki
    • , D. McGonegle
    •  & J. S. Wark
  • Article |

    A theoretical model, in vitro reconstitution and in vivo experimentation show that competition between droplet surface tension and membrane sheet instability dictates the form and function of autophagosomal membranes.

    • Jaime Agudo-Canalejo
    • , Sebastian W. Schultz
    •  & Roland L. Knorr
  • Article |

    Correlation-driven topological phases with different Chern numbers are observed in magic-angle twisted bilayer graphene in modest magnetic fields, indicating that strong electronic interactions can lead to topologically non-trivial phases.

    • Youngjoon Choi
    • , Hyunjin Kim
    •  & Stevan Nadj-Perge
  • Article |

    Two logical qubits are encoded in ensembles of four physical qubits through the surface code, then entangled by lattice surgery, which is a protocol for carrying out fault-tolerant operations.

    • Alexander Erhard
    • , Hendrik Poulsen Nautrup
    •  & Thomas Monz
  • Article |

    State-of-the-art electron energy-loss spectroscopy in a transmission electron microscope maps the detailed phonon spectra of single defects in silicon carbide

    • Xingxu Yan
    • , Chengyan Liu
    •  & Xiaoqing Pan
  • Article |

    The rate of scale regeneration in zebrafish is controlled by the frequency of rhythmic travelling waves of Erk activity, which are broadcast from a central source to induce ring-like patterns of osteoblast tissue growth.

    • Alessandro De Simone
    • , Maya N. Evanitsky
    •  & Stefano Di Talia
  • Article |

    Machine learning models enable atomistic simulations of phase transitions in amorphous silicon, predict electronic fingerprints, and show that the pressure-induced crystallization occurs over three distinct stages.

    • Volker L. Deringer
    • , Noam Bernstein
    •  & Stephen R. Elliott
  • Article |

    Pronounced quantum oscillations in magnetoresistance, a phenomenon that was only expected in metals with highly mobile carriers, are observed in the strongly insulating state of two-dimensional WTe2.

    • Pengjie Wang
    • , Guo Yu
    •  & Sanfeng Wu
  • Article |

    A chip-scale platform is developed for the conversion of a single microwave excitation of a superconducting qubit into optical photons, with potential uses in quantum computer networks.

    • Mohammad Mirhosseini
    • , Alp Sipahigil
    •  & Oskar Painter
  • Article |

    Analyses of virological and surveillance data in France show that a substantial proportion of symptomatic cases of COVID-19 have remained undetected and that easily accessible and efficient testing is required to control the pandemic.

    • Giulia Pullano
    • , Laura Di Domenico
    •  & Vittoria Colizza
  • Article |

    A many-atom state of trapped 171Yb atoms that are entangled on an optical atomic-clock transition overcomes the standard quantum limit, providing a proof-of-principle demonstration towards entanglement-based optical atomic clocks.

    • Edwin Pedrozo-Peñafiel
    • , Simone Colombo
    •  & Vladan Vuletić
  • Article |

    The number of edge channels in quantum anomalous Hall insulators is controlled by varying either the magnetic dopant concentration or the interior spacer layer thickness, yielding Chern numbers up to 5.

    • Yi-Fan Zhao
    • , Ruoxi Zhang
    •  & Cui-Zu Chang
  • Article |

    Spin transport far from equilibrium is studied in a Heisenberg model with adjustable anisotropy realized with coupled ultracold 7Li atoms, and different dynamical regimes are found for positive and negative anisotropies.

    • Paul Niklas Jepsen
    • , Jesse Amato-Grill
    •  & Wolfgang Ketterle
  • Article |

    A van der Waals structure based on a two-dimensional magnet and layered superconductor offers a potential system in which topological superconductivity could be easily tuned and integrated into devices.

    • Shawulienu Kezilebieke
    • , Md Nurul Huda
    •  & Peter Liljeroth
  • Article |

    Strong electron–electron interactions in magic-angle twisted bilayer graphene can fundamentally change the topology of the system’s flat bands, producing a hierarchy of strongly correlated topological insulators in modest magnetic fields.

    • Kevin P. Nuckolls
    • , Myungchul Oh
    •  & Ali Yazdani
  • Article |

    A strongly interacting gas of polar molecules is created by combining an electric field with two-dimensional optical confinement, enabling evaporative cooling and opening up the exploration of low-entropy many-body phases.

    • Giacomo Valtolina
    • , Kyle Matsuda
    •  & Jun Ye