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Superradiant emission from colour centres in diamond

Mon, 03/09/2018 - 00:00

Superradiant emission from colour centres in diamond

Superradiant emission from colour centres in diamond, Published online: 03 September 2018; doi:10.1038/s41567-018-0269-7

Superradiance is reported from an ensemble of nitrogen–vacancy centres coupled to a microwave resonator in the fast cavity limit.

Direct entropy measurement in a mesoscopic quantum system

Mon, 20/08/2018 - 00:00

Direct entropy measurement in a mesoscopic quantum system

Direct entropy measurement in a mesoscopic quantum system, Published online: 20 August 2018; doi:10.1038/s41567-018-0250-5

The entropy of a few-electron quantum system is measured for the first time by tracking the movement of charge in and out of the system. This could allow the unambiguous detection of Majorana fermions in solid state devices.

Imaging quantum fluctuations near criticality

Mon, 20/08/2018 - 00:00

Imaging quantum fluctuations near criticality

Imaging quantum fluctuations near criticality, Published online: 20 August 2018; doi:10.1038/s41567-018-0264-z

Quantum fluctuations in space and time can now be directly imaged using a scanning superconducting quantum interference device. The technique allows access to the local dynamics of a system close to a quantum phase transition.

Superconducting, insulating and anomalous metallic regimes in a gated two-dimensional semiconductor–superconductor array

Mon, 13/08/2018 - 00:00

Superconducting, insulating and anomalous metallic regimes in a gated two-dimensional semiconductor–superconductor array

Superconducting, insulating and anomalous metallic regimes in a gated two-dimensional semiconductor–superconductor array, Published online: 13 August 2018; doi:10.1038/s41567-018-0259-9

The phase transition between a superconductor and insulator is examined in a new type of heterostructure. A metallic regime is found, which disappears in a magnetic field, giving fresh insight to a paradigmatic quantum phase transition.

A passive photon–atom qubit swap operation

Mon, 13/08/2018 - 00:00

A passive photon–atom qubit swap operation

A passive photon–atom qubit swap operation, Published online: 13 August 2018; doi:10.1038/s41567-018-0241-6

Demonstration of a passive swap gate between the states of a fibre-guided photonic qubit and a single atom.

Precision spectroscopy of helium in a magic wavelength optical dipole trap

Mon, 13/08/2018 - 00:00

Precision spectroscopy of helium in a magic wavelength optical dipole trap

Precision spectroscopy of helium in a magic wavelength optical dipole trap, Published online: 13 August 2018; doi:10.1038/s41567-018-0242-5

A highly precise measurement of an optical transition in the helium atom has been obtained using state-of-the-art techniques. The result provides a stringent test of QED theory at low energy levels with tools of atomic physics.

Quantum formulation of the Einstein equivalence principle

Mon, 13/08/2018 - 00:00

Quantum formulation of the Einstein equivalence principle

Quantum formulation of the Einstein equivalence principle, Published online: 13 August 2018; doi:10.1038/s41567-018-0197-6

The physical conditions that support a geometric interpretation of spacetime, such as the equivalence between rest and inertial mass, are shown not to be necessarily valid in the quantum regime, and a quantum formulation is provided.

Publisher Correction: Entropic effects in cell lineage tree packings

Wed, 08/08/2018 - 00:00

Publisher Correction: Entropic effects in cell lineage tree packings

Publisher Correction: Entropic effects in cell lineage tree packings, Published online: 08 August 2018; doi:10.1038/s41567-018-0274-x

Publisher Correction: Entropic effects in cell lineage tree packings

Phase-controlled coherent dynamics of a single spin under closed-contour interaction

Mon, 06/08/2018 - 00:00

Phase-controlled coherent dynamics of a single spin under closed-contour interaction

Phase-controlled coherent dynamics of a single spin under closed-contour interaction, Published online: 06 August 2018; doi:10.1038/s41567-018-0231-8

Coherent driving of all transitions of a three-level system generates a closed-contour interaction, which is here shown to create efficient manipulation methods for electronic spins in nitrogen–vacancy centres in diamond.

Transport and dispersion across wiggling nanopores

Mon, 06/08/2018 - 00:00

Transport and dispersion across wiggling nanopores

Transport and dispersion across wiggling nanopores, Published online: 06 August 2018; doi:10.1038/s41567-018-0239-0

Fluid transport at the nanoscale is important for understanding a range of phenomena in biological and physical systems. A theory accounting for transport through fluctuating channels is presented, providing a framework for designing active membranes.

Routing the emission of a near-surface light source by a magnetic field

Mon, 06/08/2018 - 00:00

Routing the emission of a near-surface light source by a magnetic field

Routing the emission of a near-surface light source by a magnetic field, Published online: 06 August 2018; doi:10.1038/s41567-018-0232-7

The Kerr and Faraday effects enable routing of light in an applied magnetic field. Now a new class of magneto-optical phenomena is proposed and demonstrated in which light emission is controlled perpendicular to the external magnetic field.

Enhanced high-harmonic generation from an all-dielectric metasurface

Mon, 06/08/2018 - 00:00

Enhanced high-harmonic generation from an all-dielectric metasurface

Enhanced high-harmonic generation from an all-dielectric metasurface, Published online: 06 August 2018; doi:10.1038/s41567-018-0233-6

The demonstration of substantially enhanced high-harmonic emission from a silicon metasurface suggests a route towards novel photonic devices based on a combination of ultrafast strong-field physics and nanofabrication technology.

That ticking noise

Thu, 02/08/2018 - 00:00

That ticking noise

That ticking noise, Published online: 02 August 2018; doi:10.1038/s41567-018-0253-2

That ticking noise

The jungle book

Thu, 02/08/2018 - 00:00

The jungle book

The jungle book, Published online: 02 August 2018; doi:10.1038/s41567-018-0244-3

The jungle book

Rethinking our physics heroes

Thu, 02/08/2018 - 00:00

Rethinking our physics heroes

Rethinking our physics heroes, Published online: 02 August 2018; doi:10.1038/s41567-018-0263-0

As we reassess the contributions of the ‘great people’ of science, we should also celebrate the impact of mentors.

Giancarlo Ghirardi

Thu, 02/08/2018 - 00:00

Giancarlo Ghirardi

Giancarlo Ghirardi, Published online: 02 August 2018; doi:10.1038/s41567-018-0249-y

The physicist Giancarlo Ghirardi passed away on 1 June 2018, after a life devoted to the foundations of quantum mechanics.

Single-photon gatekeepers

Thu, 02/08/2018 - 00:00

Single-photon gatekeepers

Single-photon gatekeepers, Published online: 02 August 2018; doi:10.1038/s41567-018-0256-z

Single-photon gatekeepers

Elastic bits

Thu, 02/08/2018 - 00:00

Elastic bits

Elastic bits, Published online: 02 August 2018; doi:10.1038/s41567-018-0254-1

Elastic bits

Ballistic versus diffusive

Thu, 02/08/2018 - 00:00

Ballistic versus diffusive

Ballistic versus diffusive, Published online: 02 August 2018; doi:10.1038/s41567-018-0257-y

Ballistic versus diffusive

Happy together

Thu, 02/08/2018 - 00:00

Happy together

Happy together, Published online: 02 August 2018; doi:10.1038/s41567-018-0255-0

Happy together

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