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Classical approaches to imaging through complex media do not account for the quantum nature of the incident field. Now, images encoded on an entangled two-photon state are shown to transmit through a scattering medium whereas scattered by classical light.
In neurons, the mapping from inputs to output involves complex biophysical processes. Despite this complexity, it is now shown that simple artificial models explain a large fraction of the variability in neuronal activity.
The combination of viscous heat flow and thermoelastic effects leads to a non-diffusive heat transport regime in MoSe2 and MoS2. Moreover, it can be controlled through the variation in sample thickness and by choosing between continuous and pulsed heating.
How magnetic impurities influence superconductivity and electronic order in kagome metals remains unclear. Now anisotropic Kondo resonances intertwined with the superconducting gap are observed in a magnetically doped kagome superconductor.
It is known that active learning is more effective than lecturing at improving learning of physics. Now it is shown that some widely used active learning approaches are more effective than others.
Vacuum fluctuations amplified by a cavity can control and modify quantum phases. Now, strong anisotropic transport is demonstrated by manipulating quantum Hall stripes in a two-dimensional electron gas.
Deviations from the textbook current–phase relationship of a Josephson junction can arise from the intrinsic physics of the junction, but also from the inductance of metallic traces. Now a scheme has been developed to distinguish these cases.
Non-Hermitian systems support non-trivial topological effects, yet eigenvalue braiding remains difficult to control and observe. Now, active tuning of laser modes enables programmable and directly observable braiding on an integrated photonic chip.
How angular momentum is exchanged and conserved among lattice modes has been difficult to measure experimentally, but has now been observed via a coherent three-phonon scattering process in a topological insulator.
Massive spatial superpositions are a resource for quantum interferometry, but it has been hard to generate them beyond single atoms. Now spatially entangled massive states are realized through the tunnelling of atomic clusters in optical lattices.
A tunable artificial crystal in a shallow GaAs quantum well is shown to enable interaction-driven insulating behaviour. Electrostatic control tunes the band structure from graphene-like to kagome-like bands.
Transport of charges has been widely studied in two-dimensional moiré materials. However, charge-neutral collective excitations are difficult to access, especially when they are decoupled from charged quasiparticles. Now they are observed in a moiré homobilayer.
Coupling semiconductor qubit devices to microwave resonators provides a way to transfer quantum information over long distances. A flopping-mode qubit that combines strong coupling to photons with good coherence properties has now been demonstrated.
Higher-order interactions in quantum harmonic oscillator systems can result in useful effects, but they are hard to engineer. An experiment on a single trapped ion now demonstrates how spin can mediate higher-order nonlinear bosonic interactions.
Symmetry rules usually prevent interactions between distinct vibrational modes. Now it is shown that charge order fluctuations can mix modes, enhancing the chiral lattice response in a ferroaxial electronic crystal.
The mechanical stability of proteins affects their import into the nucleus. Now it is shown that protein transport in and out of the nucleus depends on the local mechanostability of the protein cargo.
During development, cells acquire their identity—a process that depends on epigenetic modifications such as methylation. Now, a statistical physics analysis of methylation helps explain embryonic symmetry breaking.
Tuning symmetry breaking in magnetic transitions via twist-angle engineering is challenging, as twisted two-dimensional magnets often inherit the magnetic ground states of their constituent parts. Now this tunability is achieved in a double-bilayer moiré magnet.
Exceptional points and their related phenomena are limited to a narrow bandwidth and require precise control to realize. Now a high-dimensional generalization of exceptional points is shown to enable broadband non-Hermitian dynamics.
The link between the strange metal with its linear-in-temperature resistivity and superconductivity is ambiguous. Now, a channel in the normal state whose scattering rate is linear in temperature is shown to drive superconductivity in FeTe1−xSex.
