Physics articles within Nature Physics


  • Article
    | Open Access

    Current muon beams have a phase-space volume that is too large for applications in muon colliders. Now, the reduction in the beam’s transverse emittance when passed through different absorbers in ionization cooling experiments is quantified.

    • M. Bogomilov
    • , R. Tsenov
    •  & C. Heidt
  • News & Views |

    • Stefanie Reichert
  • News & Views |

    The volume of muon beams in position–momentum space is too large to be used in a collider. A clear reduction in this volume has now been demonstrated, which brings particle physics closer to a practical muon collider for exploring the energy frontier.

    • Masashi Otani
  • Editorial |

    This year marks the hundredth anniversary of Satyendra Nath Bose’s paper that stimulated the study of quantum statistics. We take this opportunity to celebrate the physics of bosons.

  • News & Views |

    Laser-driven acceleration is a promising path towards more compact machines. Now, proton beams with energies up to 150 MeV have been achieved with a repetitive petawatt laser.

    • Jianhui Bin
  • News & Views |

    Topological quantum computers are predicted to perform calculations by manipulating quasiparticles known as non-Abelian anyons. A type of non-Abelian anyon that supports universal quantum gates has now been simulated using superconducting qubits.

    • Trond I. Andersen
    •  & Xiao Mi
  • News & Views |

    Inducing superconductivity in quantum anomalous Hall insulators is crucial to realize topological superconductors. Now a study shows superconducting correlations in the quantum anomalous Hall state, which can convert electrons on its one-way path into holes.

    • Jing Wang
    •  & Zhaochen Liu
  • News & Views |

    Nonlinearity is crucial for sophisticated tasks in machine learning but is often difficult to engineer outside of electronics. By encoding the inputs in parameters of the system, linear systems can realize efficiently trainable nonlinear computations.

    • Peter L. McMahon
  • Research Briefing |

    An improved optimization algorithm enables the training of large-scale neural quantum states in which the enormous number of neuron connections capture the intricate complexity of quantum many-body wavefunctions. This advance leads to unprecedented accuracy in paradigmatic quantum models, opening up new avenues for simulating and understanding complex quantum phenomena.

  • Article
    | Open Access

    As the energy consumption of neural networks continues to grow, different approaches to deep learning are needed. A neuromorphic method offering nonlinear computation based on linear wave scattering can be implemented using integrated photonics.

    • Clara C. Wanjura
    •  & Florian Marquardt
  • Article |

    The growth of a biofilm—a bacterial colony attached to a surface—is governed by a trade-off between horizontal and vertical expansion. Now, it is shown that this process significantly depends on the contact angle at the biofilm’s edge.

    • Aawaz R. Pokhrel
    • , Gabi Steinbach
    •  & Peter J. Yunker
  • Measure for Measure |

    It has many names and yet no name. The designation of the universal gas constant as R has remained a mystery, as Karen Mudryk recounts.

    • Karen Mudryk
  • Research Briefing |

    Rhombohedral graphene is an emerging material with a rich correlated-electron phenomenology, including superconductivity. The magnetism of symmetry-broken trilayer graphene has now been explored, revealing important details of the physics and providing a roadmap for broader explorations of rhombohedral graphene.

  • Article |

    A multiscale model of muscle as a fluid-filled sponge suggests that hydraulics limits rapid contractions and that the mechanical response of muscle is non-reciprocal.

    • Suraj Shankar
    •  & L. Mahadevan
  • Article
    | Open Access

    The complexity of a many-body quantum state grows exponentially with system size, hindering numerical studies. A unitary flow-based method now enables accurate estimates of long-term properties of one- and two-dimensional quantum systems.

    • S. J. Thomson
    •  & J. Eisert
  • Article |

    The observation of continuous time crystals has been hindered by atom loss in the ultracold regime. Long-range time-crystalline order has now been demonstrated in a dissipative Rydberg gas at room temperature.

    • Xiaoling Wu
    • , Zhuqing Wang
    •  & Li You
  • News & Views |

    Patches of turbulence in straight pipe flow (‘puffs’) display collective dynamics that is not well understood. Now, this dynamics is shown to harbour a phase transition of the directed percolation type, displaying jamming at high puff density.

    • Yohann Duguet
  • News & Views |

    Acoustic resonators are a promising candidate for making quantum computers scalable. Coupled to a qubit, they have now produced squeezed mechanical states, demonstrating that they can implement a large variety of quantum algorithms.

    • Matthijs H. J. de Jong
    •  & Laure Mercier de Lépinay
  • Article
    | Open Access

    An optimization algorithm reduces the cost of training large-scale neural quantum states. This leads to accurate computations of the ground states of frustrated magnets and provides evidence of gapless quantum-spin-liquid phases.

    • Ao Chen
    •  & Markus Heyl
  • Article |

    Gaussian boson sampling reproduces distributions that are hard to calculate classically and were claimed to show quantum advantage in the noiseless limit. But now a classical algorithm is shown to reproduce experimental results when noise is large.

    • Changhun Oh
    • , Minzhao Liu
    •  & Liang Jiang
  • News & Views |

    140 years ago, John Henry Poynting demonstrated “by what paths and according to what law” electromagnetic energy travels. Theory and experiment now also reveal how waves acquire information as they scatter through their environment.

    • Arthur Goetschy
  • News & Views |

    Acoustic and optical traps enable contactless manipulation of objects, but trapping has been limited to homogeneous environments. Wavefront shaping now extends this versatile manipulation tool to dynamic and disordered media.

    • Emmanuel Fort
  • Article
    | Open Access

    Mechanical modes promise applications in continuous-variable quantum information processing, but only if the final two elements—squeezing and nonlinearity—are achieved. Experiments with an oscillator coupled to a transmon qubit now achieve this.

    • Stefano Marti
    • , Uwe von Lüpke
    •  & Matteo Fadel
  • Article
    | Open Access

    Although manipulation of objects using light and sound waves is an established technique, it has so far been confined to static environments. Iterative tailoring of acoustic far fields now allows control of objects in disordered and dynamic media.

    • Bakhtiyar Orazbayev
    • , Matthieu Malléjac
    •  & Romain Fleury
  • News & Views |

    In many schedule-based systems, timeliness is paramount. A recent study provides insights into delay accumulation in networks, revealing a phase transition with connections to the physics of interfaces.

    • Jari Saramäki
  • News & Views |

    The rotation of holes jumping between quantum dots in silicon quantum computers creates additional complexity for two-qubit operations. Understanding the rules of this somersaulting movement is key to the progress of hole-based qubit technology.

    • Andre Saraiva
    •  & Dimitrie Culcer
  • Article |

    Timeliness is a crucial property for the optimal functioning of socio-technical systems where delays can propagate. Now it is shown that a stylized model of delay propagation on temporal networks shows a phase transition that can trigger avalanches.

    • José Moran
    • , Matthijs Romeijnders
    •  & Jean-Philippe Bouchaud
  • Editorial |

    Construction of the European Spallation Source began 10 years ago. Upon completion, its advanced technology and sustainable design will herald a new era for neutron scattering experiments.

  • News & Views |

    Spatial heterogeneity in disease transmission rates and in mixing patterns between regions makes predicting epidemic trajectories hard. Quantifying the mixing rates within and between spatial regions can improve predictions.

    • Emily Paige Harvey
    •  & Dion R. J. O’Neale
  • Article |

    Applications of atom interferometry require sufficiently long coherence times. Now, confining atoms in an optical lattice shows that the decoherence rate slows down markedly at hold times that exceed tens of seconds.

    • Cristian D. Panda
    • , Matthew Tao
    •  & Holger Müller
  • Article |

    The observation of edge modes in topological systems is challenging because precise control over the sample and occupied states is required. An experiment with atoms in a driven lattice now shows how edge modes with programmable potentials can be realized.

    • Christoph Braun
    • , Raphaël Saint-Jalm
    •  & Monika Aidelsburger
  • Article |

    Topological boundary modes within charge-ordered states have not yet been observed experimentally. Now an in-gap boundary mode, stemming solely from the charge order, is visualized in the topological material Ta2Se8I.

    • Maksim Litskevich
    • , Md Shafayat Hossain
    •  & M. Zahid Hasan
  • Article |

    An analysis of images from the Juno spacecraft reveals dynamics at high latitudes that are reminiscent of the generation of frontal structures in Earth’s atmosphere and oceans.

    • Lia Siegelman
    •  & Patrice Klein
  • News & Views |

    A superfluid is a macroscopic system with zero viscosity through which entropy is reversibly transported by waves. An unexpected transport phenomenon has now been observed between two superfluids, where irreversible entropy transport is enhanced by superfluidity.

    • Marion Delehaye
  • News & Views |

    In solids, the quantum metric captures the quantum coherence of the electron wavefunctions. Recent experiments demonstrate the detection and manipulation of the quantum metric in a noncollinear topological antiferromagnet at room temperature.

    • Su-Yang Xu