Nature Physics

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-0997-3

Giacomo Prando summarizes the troubled history of the radian, a unit with the odd property of appearing and disappearing seemingly at will in dimensional formulas.

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1015-5

An ultracold junction

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1013-7

Test your theory

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1011-9

Spins sense fields

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1010-x

The persistent under-representation of Black physicists is a systemic problem that requires will, money and long-term commitment to be solved.

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1014-6

Unequal equals

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1001-y

The unifying role of topology

Nature Physics, Published online: 04 August 2020; doi:10.1038/s41567-020-1012-8

Lost and found

Nature Physics, Published online: 03 August 2020; doi:10.1038/s41567-020-0970-1

Higher-dimensional entanglement between two photons can be preserved for a photon passing through a complex medium by applying an appropriate scrambling operation on the entangled partner that does not enter the complex medium.

Nature Physics, Published online: 03 August 2020; doi:10.1038/s41567-020-0976-8

A mooted advantage of high-dimensional states is their robustness to noise, yet their fragility in noisy channels has hindered their deployment. A demonstration shows how to exploit entanglement to restore quantum correlations lost in transmission.

Nature Physics, Published online: 03 August 2020; doi:10.1038/s41567-020-0975-9

An optomechanical cavity comprising a re-entrant cavity and membrane resonators can be tuned in and out of the Casimir regime. At the transition between the two regimes, the mechanical resonators exhibit a change in stiffness—the Casimir spring.

Nature Physics, Published online: 27 July 2020; doi:10.1038/s41567-020-0972-z

Scanning tunnelling microscopy is enhanced by microwave radiation that allows photon-assisted tunnelling processes. This technique is demonstrated on impurity states in a superconductor.

Nature Physics, Published online: 27 July 2020; doi:10.1038/s41567-020-0988-4

The Mott insulator ground state is a crucial feature of high-temperature superconductors such as the cuprates. Here, the authors find an exactly solvable model that contains both superconductivity and Mottness.

Nature Physics, Published online: 27 July 2020; doi:10.1038/s41567-020-0979-5

An exactly solvable model for superconductivity includes two crucial features of the cuprates and sheds light on unexplained experiments.

Nature Physics, Published online: 27 July 2020; doi:10.1038/s41567-020-0971-0

A magnetic impurity is placed on the tip of a scanning tunnelling microscope, allowing direct tunnelling between two Yu–Shiba–Rusinov bound states. This technique can probe and enhance the impurity state lifetime.

Nature Physics, Published online: 27 July 2020; doi:10.1038/s41567-020-0974-x

The flat electronic bands that are associated with ordered phases in twisted bilayer graphene at a magic twist angle have been imaged using angle-resolved photoemission spectroscopy.

Nature Physics, Published online: 20 July 2020; doi:10.1038/s41567-020-0965-y

Thermal transport measurements show that there is a thermal Hall effect in the out-of-plane direction in two cuprates in the pseudogap regime. This indicates that phonons are carrying the heat and that they have a handedness of unknown origin.

Nature Physics, Published online: 20 July 2020; doi:10.1038/s41567-020-0968-8

A transient intermediate complex in a chemical reaction—formed from collisions between molecules with a few atoms—is observed under ultracold conditions. Its lifetime can be directly measured after suppression of the photo-excitation process.

Nature Physics, Published online: 20 July 2020; doi:10.1038/s41567-020-0939-0

An adaptive heterodyne technique with a Josephson parametric amplifier detector allows a high-precision single-shot canonical phase measurement on a one-photon wave packet, complementing near-ideal measurements of photon number or field amplitude.

Nature Physics, Published online: 15 July 2020; doi:10.1038/s41567-020-0996-4

Publisher Correction: Universal elastic mechanism for stinger design