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The authors use STM to show that there are two different classes of zero-bias peak in vortex cores of Fe(Te,Se). One class is topological, one not. These are distinguished by a shift in the energy levels of the excited states.
Non-trivial Peierls phases that depend on the site occupations for ultracold fermions in an optical lattice have been engineered in a Floquet approach, providing a fundamental ingredient for a density-dependent gauge field acting on ultracold matter.
An observation that cells at the edge of a healing wound readily undergo intercalation leads to the finding that tissue fluidity is crucial for effective wound closure.
The proteins tasked with establishing polarity in a cell undergo reaction–diffusion dynamics that are shown here to impose a cell-size threshold on polarization. The limit may facilitate switching between symmetric and asymmetric modes of division.
Scanning tunnelling microscopy shows that electrons in twisted bilayer graphene are strongly correlated for a wide range of density. In particular, a correlated regime appears near charge neutrality and theory suggests nematic ordering.
Modelling and microscopy of thousands of cells together reveal the coupling through which the cell cycle influences the circadian clock. This coupling may explain why mammalian tissues growing at different rates have shifted circadian rhythms.
Braiding by topological defects in an active nematic fluid produces macroscopic chaotic advection, such that the defects themselves act as effective stirring rods. The resultant mixing is revealed to be a result of sliding on a molecular scale.
At zero magnetic field, the triangular-lattice antiferromagnet NaYbO2 shows the absence of long-range magnetic order down to 50 mK, consistent with quantum spin liquid behaviour. An external field renders the system a collinear ordered phase.
The Parker spiral—arising from the interaction between the Sun’s magnetic field with the solar wind—is recreated in the laboratory from a rapidly rotating plasma magnetosphere.
Virtual photons emitted from strong-interaction matter created in relativistic heavy-ion collisions decay into electron–positron pairs, which provide information about the system’s properties.
A quantum two-level system can be coherently excited by a phase-locked dichromatic electromagnetic field. This technique can make single-photon generation more efficient as the pump light does not overlap in frequency with the emitted single photons.
A detailed neutron scattering and muon spin relaxation study uncovers a continuum of magnetic excitations down to 35 mK in the pyrochlore lattice compound Ce2Zr2O7 with minimum chemical disorder, consistent with quantum spin liquid behaviour.
Potential Majorana bound states are seen in the vortex cores of a transition metal dichalcogenide. The properties of the superconductor mean that the bound states are highly anisotropic, and can appear at higher temperatures than other materials.
This investigation of the two-dimensional superconductor–insulator transition in NbSe2 shows a strong dependence on the number of layers, and that fully dissipationless superconductivity is almost absent in the monolayer.
Superionic states of matter simultaneously exhibit some of the properties of a liquid and of a solid. Detailed numerical simulations predict two superionic phases in mixtures of helium and water.
Despite being a charge insulator, YbB12 behaves like a thermal metal. Low-temperature heat-transport measurements of this compound showed its gapless, itinerant and charge-neutral excitations.
A theory that reinterprets the electrical conductivity of insulating fluids in terms of integer ionic charges that correspond to oxidation states is put forward and tested numerically.
A general theoretical picture regarding the generation and the detection of extremely short pulses of squeezed vacuum light is provided, allowing the treatment of arbitrary wavepackets of quantum light intrinsically in the time domain.
The rate at which proteins are imported into the nucleus of a cell is shown to be regulated by their mechanical unfolding, a mechanism that identifies the nuclear pore machinery as a highly sensitive force detector.