Nature Physics

Nature Physics, Published online: 13 May 2022; doi:10.1038/s41567-022-01588-x

An experimental realization of an artificial spin glass is demonstrated, with an arrangement of Ising-type permalloy nanomagnets mimicking the structure of artificial spin ice — and a particular type of neural network.

Nature Physics, Published online: 13 May 2022; doi:10.1038/s41567-022-01609-9

A crash course in pandemic traffic

Nature Physics, Published online: 12 May 2022; doi:10.1038/s41567-022-01613-z

Quantum computing operations are realized using acoustic devices, paving the way for a new type of quantum processor.

Nature Physics, Published online: 12 May 2022; doi:10.1038/s41567-022-01591-2

Mechanical resonators combined with superconducting circuits are a promising platform for controlling non-classical mechanical states. Here this platform is used to directly measure the parity of a motional quantum state.

Nature Physics, Published online: 12 May 2022; doi:10.1038/s41567-022-01601-3

Cells have built-in mechanisms for checking for errors during replication, but these checkpoints can slow down reproduction. A theory accounting for optimal checkpoint strategies is presented and tested against observations in budding yeast.

Nature Physics, Published online: 09 May 2022; doi:10.1038/s41567-022-01582-3

Upon combining dissipative and nonlinear effects in a bipartite lattice of cavity polaritons, dissipatively stabilized bulk gap solitons emerge, which create a topological interface.

Nature Physics, Published online: 09 May 2022; doi:10.1038/s41567-022-01570-7

Electrons in PdCoO2 can travel a long way before being scattered, and their band structure is such that they can travel in only one of three directions. As a result, the current flow through this nanoscale conductor can be very efficient.

Nature Physics, Published online: 09 May 2022; doi:10.1038/s41567-022-01599-8

Drive engineering in optical systems can be used to stabilize new nonlinear phases in topological systems. Dissipatively stabilized gap solitons in a polariton lattice establish drive engineering as a resource for nonlinear topological photonics.

Nature Physics, Published online: 02 May 2022; doi:10.1038/s41567-022-01590-3

The efficiency of running quantum algorithms can be improved by expanding the hardware operations that a quantum computer can perform. A high-fidelity three-qubit iToffoli gate has now been demonstrated using superconducting qubits.

Nature Physics, Published online: 28 April 2022; doi:10.1038/s41567-022-01597-w

A theoretical analysis shows how a person’s location in space could be verified by the transmission of single photons. A vital application of quantum networks may be within reach.

Nature Physics, Published online: 28 April 2022; doi:10.1038/s41567-022-01607-x

Thermodynamic concepts can be used to understand nonlinear wave systems, but direct evidence for these analogies is scarce. Experiments with multimode fibres have now enabled direct measurement of the thermalization process of optical waves.

Nature Physics, Published online: 28 April 2022; doi:10.1038/s41567-022-01577-0

Unless you are nearby, it is difficult to verify where someone is. Access to a single qubit and classical computation and communication makes it possible to securely check someone’s position as long as adversaries’ quantum resources are limited.

Nature Physics, Published online: 28 April 2022; doi:10.1038/s41567-022-01579-y

Optical nonlinearities in multimodal systems lead to a complex behaviour that can be described as a thermalization process, which is expected to lead to a Rayleigh–Jeans distribution. This process has now been observed in graded-index fibres.

Nature Physics, Published online: 25 April 2022; doi:10.1038/s41567-022-01589-w

In graphene, the spin and valley degrees of freedom combine into a higher-order isospin. Now, a full map of the phase diagram of this isospin is measured in the moiré bands of twisted bilayer graphene.

Nature Physics, Published online: 21 April 2022; doi:10.1038/s41567-022-01592-1

Charge carriers in an engineered bilayer Mott insulator are predicted to form tightly bound, mobile pairs, glued together by string excitations of the antiferromagnetic order — a scenario that can be tested with quantum gas microscopy experiments.

Nature Physics, Published online: 21 April 2022; doi:10.1038/s41567-022-01595-y

Heat transport measurements on twisted bilayer graphene reveal a strong asymmetry between electrons and holes — a consequence of band reconstruction, induced by electronic interactions, at partial fillings of the moiré superlattice.

Nature Physics, Published online: 21 April 2022; doi:10.1038/s41567-022-01561-8

Studies of unconventional pairing mechanisms in cold atoms require ultralow temperatures. Large-scale numerics show that certain bilayer models allow for deeply bound and highly mobile pairs of charges at more accessible temperatures.

Nature Physics, Published online: 21 April 2022; doi:10.1038/s41567-022-01574-3

Thermal transport measurements provide a complementary view of the electronic structure of a material to electronic transport. This technique is applied to twisted bilayer graphene, and highlights the particle–hole asymmetry of its band structure.

Nature Physics, Published online: 14 April 2022; doi:10.1038/s41567-022-01578-z

Heat transport in electronic systems is influenced by nearby superconductors due to the so-called proximity effect. Combining this with the manipulation of superconductivity using magnetic fields enables the control of nanoscale thermal transport.

Nature Physics, Published online: 14 April 2022; doi:10.1038/s41567-022-01563-6

The sliding of a water drop on a surface is traditionally described by taking flow within the drop and contact-line friction into account. Now, evidence shows that electric forces can also substantially affect water-on-surface sliding dynamics.