Quantum physics articles within Nature Physics

Featured

  • Review Article |

    The study of quantum systems in a programmable and controllable fashion is one of the aims of both quantum simulation and computing. This Review covers the prospects and opportunities that ultracold molecules offer in these fields.

    • Simon L. Cornish
    • , Michael R. Tarbutt
    •  & Kaden R. A. Hazzard

  • Review Article |

    Ultracold atoms are a well-established platform for quantum sensing and metrology. This Review discusses the enhanced sensing capabilities that molecules offer for a range of phenomena, including symmetry-violating forces and dark matter detection.

    • David DeMille
    • , Nicholas R. Hutzler
    •  & Tanya Zelevinsky

  • Article |

    Many recent experiments have stored quantum information in bosonic modes, such as photons in resonators or optical fibres. Now an adaptation of the classical spherical codes provides a framework for designing quantum error correcting codes for these platforms.

    • Shubham P. Jain
    • , Joseph T. Iosue
    •  & Victor V. Albert

  • News & Views |

    The properties of quantum matter arise from the combined effects of dimensionality, interactions and quantum statistics. An experiment now studies what happens to ultracold bosons when the dimensionality of the system changes continuously between one and two dimensions.

    • Jérôme Beugnon

  • Article
    | Open Access

    A successful silicon spin qubit design should be rapidly scalable by benefiting from industrial transistor technology. This investigation of exchange interactions between two FinFET qubits provides a guide to implementing two-qubit gates for hole spins.

    • Simon Geyer
    • , Bence Hetényi
    •  & Andreas V. Kuhlmann

  • Research Briefing |

    A practical and hardware-efficient blueprint for fault-tolerant quantum computing has been developed, using quantum low-density-parity-check codes and reconfigurable neutral-atom arrays. The scheme requires ten times fewer qubits and paves the way towards large-scale quantum computing using existing experimental technologies.

  • News & Views |

    Questioning the validity of axioms can teach us about physics beyond the standard model. A recent search for the violation of charge conservation and the Pauli exclusion principle yields limits on these scenarios.

    • Alessio Porcelli

  • Comment |

    The time has come to consider appropriate guardrails to ensure quantum technology benefits humanity and the planet. With quantum development still in flux, the science community shares a responsibility in defining principles and practices.

    • Urs Gasser
    • , Eline De Jong
    •  & Mauritz Kop

  • Article
    | Open Access

    Leggett modes can occur when superconductivity arises in more than one band in a material and represent oscillation of the relative phases of the two superconducting condensates. Now, this mode is observed in Cd3As2, a Dirac semimetal.

    • Joseph J. Cuozzo
    • , W. Yu
    •  & Enrico Rossi

  • News & Views |

    The Hamiltonian describing a quantum many-body system can be learned using measurements in thermal equilibrium. Now, a learning algorithm applicable to many natural systems has been found that requires exponentially fewer measurements than existing methods.

    • Sitan Chen

  • Article |

    Despite being essential to many applications in quantum science, entanglement can be easily disrupted by decoherence. A protocol based on repetitive quantum error correction now demonstrates enhanced coherence times of entangled logical qubits.

    • Weizhou Cai
    • , Xianghao Mu
    •  & Luyan Sun

  • Perspective |

    Quantum computers promise to efficiently predict the structure and behaviour of molecules. This Perspective explores how this could overcome existing challenges in computational drug discovery.

    • Raffaele Santagati
    • , Alan Aspuru-Guzik
    •  & Clemens Utschig-Utschig

  • Article
    | Open Access

    Photon-mediated entanglement in atomic ensembles coupled to cavities enables the engineering of quantum states with a graph-like entanglement structure. This offers potential advantages in quantum computation and metrology.

    • Eric S. Cooper
    • , Philipp Kunkel
    •  & Monika Schleier-Smith

  • Article
    | Open Access

    Combining multiparticle levitation with cavity control enables cavity-mediated interaction between levitated nanoparticles, whose strength can be tailored via optical detuning and position of the two particles.

    • Jayadev Vijayan
    • , Johannes Piotrowski
    •  & Lukas Novotny

  • Article |

    Most applications of surface plasmons are based on their near-field properties. These properties are now shown to be governed by nonclassical scattering between multiparticle plasmonic subsystems.

    • Mingyuan Hong
    • , Riley B. Dawkins
    •  & Omar S. Magaña-Loaiza

  • News & Views |

    Some quantum acoustic resonators possess a large number of phonon modes at different frequencies. Direct interactions between modes similar to those available for photonic devices have now been demonstrated. This enables manipulation of multimode states.

    • Audrey Bienfait

  • Article
    | Open Access

    The standard current–phase relation in tunnel Josephson junctions involves a single sinusoidal term, but real junctions are more complicated. The effects of higher Josephson harmonics have now been identified in superconducting qubit devices.

    • Dennis Willsch
    • , Dennis Rieger
    •  & Ioan M. Pop

  • News & Views |

    Quantum simulators can provide new insights into the complicated dynamics of quantum many-body systems far from equilibrium. A recent experiment reveals that underlying symmetries dictate the nature of universal scaling dynamics.

    • Maximilian Prüfer

  • Article
    | Open Access

    Quantum gates require controlled interactions between different degrees of freedom. A tunable coupling has now been demonstrated between the phonon modes of a mechanical resonator designed for storing and manipulating quantum information.

    • Uwe von Lüpke
    • , Ines C. Rodrigues
    •  & Yiwen Chu

  • Article |

    Raman sideband cooling is a method used to prepare atoms and ions in their vibrational ground state. This technique has now been extended to molecules trapped in optical tweezer arrays.

    • Yukai Lu
    • , Samuel J. Li
    •  & Lawrence W. Cheuk

  • News & Views |

    Quasicrystals are ordered but not periodic, which makes them fascinating objects at the interface between order and disorder. Experiments with ultracold atoms zoom in on this interface by driving a quasicrystal and exploring its fractal properties.

    • Julian Léonard

  • Article |

    The kernel method in machine learning can be implemented on near-term quantum computers. A 27-qubit device has now been used to solve learning problems using kernels that have the potential to be practically useful.

    • Jennifer R. Glick
    • , Tanvi P. Gujarati
    •  & Kristan Temme

  • Article
    | Open Access

    Phases of matter can host different transport behaviours, ranging from diffusion to localization. Anomalous transport has now been observed in an interacting Bose gas in a one-dimensional lattice subject to a pulsed incommensurate potential.

    • Toshihiko Shimasaki
    • , Max Prichard
    •  & David M. Weld

  • Article
    | Open Access

    External driving of qubits can exploit their nonlinearity to generate different forms of interqubit interactions, broadening the capabilities of the platform.

    • Long B. Nguyen
    • , Yosep Kim
    •  & Irfan Siddiqi

  • Measure for Measure |

    Quantum technologies change our notion of measurement. Chenyu Wang elaborates on how quantum squeezing enhances the precision of gravitational-wave interferometers.

    • Chenyu Wang

  • News & Views |

    Scalable quantum computers require quantum error-correcting codes that can robustly store information. Exploiting the structure of well-known classical codes may help create more efficient approaches to quantum error correction.

    • Anirudh Krishna

  • Article
    | Open Access

    Large quantum computers will require error correcting codes, but most proposals have prohibitive requirements for overheads in the number of qubits, processing time or both. A way to combine smaller codes now gives a much more efficient protocol.

    • Hayata Yamasaki
    •  & Masato Koashi

  • News & Views |

    Optical atomic clocks are extremely accurate sensors despite the poor use of their resources. A parallel quantum control approach might help to optimize the resources of optical atomic clocks, which could lead to an exponential improvement in their performance.

    • Simone Colombo

  • Article
    | Open Access

    Addressing optical transitions at the level of a single site is crucial to unlock the potential of quantum computers and atomic clocks. A scheme based on atom rearrangement now demonstrates such control with demonstrable metrological benefits.

    • Adam L. Shaw
    • , Ran Finkelstein
    •  & Manuel Endres

  • News & Views |

    Precise frequencies of nearly forbidden transitions have been ascertained in the simplest molecule, the molecular hydrogen ion. This work offers a new perspective on precision measurements and fundamental physical tests with molecular spectroscopy.

    • Xin Tong

  • Article |

    It has been suggested that Gaussian boson sampling may provide a quantum computational advantage for calculating the vibronic spectra of molecules. Now, an equally efficient classical algorithm has been identified.

    • Changhun Oh
    • , Youngrong Lim
    •  & Liang Jiang

Browse broader subjects

Browse narrower subjects

Browse Quantum physics across other nature.com journals