Single photons and quantum effects articles within Nature

Featured

  • Article |

    A modular quantum system-on-chip architecture integrates thousands of individually addressable spin qubits in two-dimensional quantum microchiplet arrays into an integrated circuit designed for cryogenic control, supporting full connectivity for quantum memory arrays across spin–photon channels.

    • Linsen Li
    • , Lorenzo De Santis
    •  & Dirk Englund

  • Article |

    Boson sampling using ultracold atoms in a two-dimensional, tunnel-coupled optical lattice is enabled by high-fidelity programmable control with optical tweezers of a large number of atoms trapped in an optical lattice.

    • Aaron W. Young
    • , Shawn Geller
    •  & Adam M. Kaufman

  • Article
    | Open Access

    Using an optical resonator containing two individually addressable atoms in a single cavity, fusion of deterministically generated photonic graph states to create ring and tree graph states with up to eight qubits is demonstrated.

    • Philip Thomas
    • , Leonardo Ruscio
    •  & Gerhard Rempe

  • Article
    | Open Access

    Resonant X-ray excitation of the  45Sc nuclear isomeric state was achieved by irradiation of a Sc-metal foil with 12.4-keV photon pulses from a state-of-the-art X-ray free-electron laser, allowing a high-precision determination of the transition energy.

    • Yuri Shvyd’ko
    • , Ralf Röhlsberger
    •  & Tomasz Kolodziej

  • Article |

    Er3+ is implanted into CaWO4, a material with non-polar site symmetry free of background rare earth ions, to realize reduced optical spectral diffusion in nanophotonic devices, representing a step towards making telecom band quantum repeater networks with single ions.

    • Salim Ourari
    • , Łukasz Dusanowski
    •  & Jeff D. Thompson

  • Article
    | Open Access

    A loophole-free violation of Bell’s inequality with superconducting circuits shows that non-locality is a viable new resource in quantum information technology realized with superconducting circuits, promising many potential applications.

    • Simon Storz
    • , Josua Schär
    •  & Andreas Wallraff

  • Article |

    Under strong excitation, inhomogeneously broadened solid-state emitters coupled with high cooperativity to a cavity demonstrate collectively induced transparency and dissipative many-body dynamics, resulting from cavity–ion coupling.

    • Mi Lei
    • , Rikuto Fukumori
    •  & Andrei Faraon

  • Article |

    An experiment is described in which the conversion of a single photon in a multimode cavity into a shower of low-energy photons was attempted, but failed owing to many-body localization and violation of Fermi’s golden rule.

    • Nitish Mehta
    • , Roman Kuzmin
    •  & Vladimir E. Manucharyan

  • Article
    | Open Access

    Gaussian boson sampling is performed on 216 squeezed modes entangled with three-dimensional connectivity5, using Borealis, registering events with up to 219 photons and a mean photon number of 125.

    • Lars S. Madsen
    • , Fabian Laudenbach
    •  & Jonathan Lavoie

  • Article |

    Via spin-exchange interactions with 51V5+ ions, an optically addressed 171Yb3+ qubit in a nuclear-spin-rich yttrium orthovanadate crystal is used to implement a reproducible nuclear-spin-based quantum memory, and entangled Yb–V Bell states are demonstrated.

    • Andrei Ruskuc
    • , Chun-Ju Wu
    •  & Andrei Faraon

  • Article |

    Nonlinearity induced by a single photon is desirable because it can drive power consumption of optical devices to their fundamental quantum limit, and is demonstrated here at room temperature.

    • Anton V. Zasedatelev
    • , Anton V. Baranikov
    •  & Pavlos G. Lagoudakis

  • 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 |

    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 |

    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 |

    An ultimately thin microwave bolometric sensor based on a superconductor–graphene–superconductor Josephson junction with monolayer graphene has a sensitivity approaching the fundamental limit imposed by intrinsic thermal fluctuations.

    • Gil-Ho Lee
    • , Dmitri K. Efetov
    •  & Kin Chung Fong

  • Article |

    An efficient entanglement-based quantum key distribution is sent from the Micius satellite to two ground observatories 1,120 kilometres apart to establish secure quantum cryptography for the exchange of quantum keys.

    • Juan Yin
    • , Yu-Huai Li
    •  & Jian-Wei Pan

  • Article |

    Pairs of photons in the Laughlin state are created by mimicking a fractional quantum Hall system using the synthetic magnetic field induced by a twisted optical cavity and Rydberg-mediated polariton interactions.

    • Logan W. Clark
    • , Nathan Schine
    •  & Jonathan Simon

  • Letter |

    Frequency modulation is used to create ‘Floquet polaritons’—strongly interacting quasi-particles that exist in a customizable set of modes.

    • Logan W. Clark
    • , Ningyuan Jia
    •  & Jonathan Simon

  • Letter |

    A parametrically driven 30-micrometre-long silicon nanostring oscillator emits stationary path-entangled microwave radiation, squeezing the joint field operators of two thermal modes by 3.4 decibels below the vacuum level.

    • S. Barzanjeh
    • , E. S. Redchenko
    •  & J. M. Fink

  • Letter |

    Experiment overturns Bohr’s view of quantum jumps, demonstrating that they possess a degree of predictability and when completed are continuous, coherent and even deterministic.

    • Z. K. Minev
    • , S. O. Mundhada
    •  & M. H. Devoret

  • Letter |

    An array of superconducting qubits in an open one-dimensional waveguide is precisely controlled to create an artificial quantum cavity–atom system that reaches the strong-coupling regime without substantial decoherence.

    • Mohammad Mirhosseini
    • , Eunjong Kim
    •  & Oskar Painter

  • Letter |

    Electro-optic detection in a nonlinear crystal is used to measure coherence properties of vacuum fluctuations of the electromagnetic field and deduce the spectrum of the ground state of electromagnetic radiation.

    • Ileana-Cristina Benea-Chelmus
    • , Francesca Fabiana Settembrini
    •  & Jérôme Faist

  • Letter |

    Cooperative quantum effects in superlattices of quantum dots made of caesium lead halide perovskite give rise to superfluorescence, with the individual emitters interacting coherently to give intense bursts of light.

    • Gabriele Rainò
    • , Michael A. Becker
    •  & Thilo Stöferle

  • Letter |

    Topologically protected edge states realized in a square array of ring resonators are used to demonstrate a robust source of heralded single photons produced by spontaneous four-wave mixing.

    • Sunil Mittal
    • , Elizabeth A. Goldschmidt
    •  & Mohammad Hafezi

  • Article |

    Coherent coupling between a three-electron spin qubit and single photons in a microwave resonator is demonstrated, which, unlike previous demonstrations, does not require ferromagnetic components near the qubit.

    • A. J. Landig
    • , J. V. Koski
    •  & T. Ihn

  • Letter |

    The BIG Bell Test, which used an online video game with 100,000 participants worldwide to provide random bits to 13 quantum physics experiments, contradicts the Einstein–Podolsky–Rosen worldview of local realism.

    • C. Abellán
    • , A. Acín
    •  & J. Zhong

  • Letter |

    Quantum entanglement is demonstrated in a system of massive micromechanical oscillators coupled to a microwave-frequency electromagnetic cavity by driving the devices into a steady state that is entangled.

    • C. F. Ockeloen-Korppi
    • , E. Damskägg
    •  & M. A. Sillanpää

  • Letter |

    Remote quantum entanglement is demonstrated in a micromachined solid-state system comprising two optomechanical oscillators across two chips physically separated by 20 cm and with an optical separation of around 70 m.

    • Ralf Riedinger
    • , Andreas Wallucks
    •  & Simon Gröblacher

  • Article |

    Decoy-state quantum key distribution from a satellite to a ground station is achieved with much greater efficiency than is possible over the same distance using optical fibres.

    • Sheng-Kai Liao
    • , Wen-Qi Cai
    •  & Jian-Wei Pan

  • Review Article |

    The experimental state-of-the-art in the field of chiral quantum optics is reviewed and the ways in which chiral light–matter interaction could be exploited to add a new dimension of control to quantum networks and quantum many-body physics are discussed.

    • Peter Lodahl
    • , Sahand Mahmoodian
    •  & Peter Zoller

  • Letter |

    Excitations to Rydberg states in a gas of ultracold atoms are used to produce a robust, nonlinear phase shift of exactly π/2 between two photons, which is protected against variations in experimental parameters by a symmetry of the system.

    • Jeff D. Thompson
    • , Travis L. Nicholson
    •  & Vladan Vuletić

Browse broader subjects

Browse Single photons and quantum effects across other nature.com journals