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Coherent quantum transition spectroscopy of the spin of a single antiproton is reported, demonstrating Rabi oscillations of the spin and enabling improved measurement of matter/antimatter symmetry using proton and antiproton magnetic moments.

It was predicted that complex thermalizing behaviour can arise in many-body systems in the absence of disorder. Here, the authors observe non-ergodic dynamics in a tilted optical lattice that is distinct from previously studied regimes, and propose a microscopic mechanism that is due to emergent kinetic constrains.

Spin-flip resonance data are used to place direct constraints on the interaction of ultralight axion-like particles with antiprotons, improving the sensitivity to the corresponding coupling coefficient by five orders of magnitude.

High-precision measurements could disclose fundamental dissimilarities between matter and antimatter, which are found imbalanced in the Universe. Here, the authors measure the magnetic moment of the antiproton with six-fold higher accuracy than before, finding it consistent with that of the proton.

Measuring the hyperfine structure of a single helium-3 ion in a Penning trap enables direct measurement of the nuclear magnetic moment of helium-3 and provides the high accuracy needed for NMR-based magnetometry.

Using the two stable electronic states of alkaline-earth atoms, an orbital spin-exchange interaction—the building block of orbital quantum magnetism—has been observed in a fermionic quantum gas.

The inner hair cells (IHCs) within the cochlea convey sound information and have been thought to be electrically and metabolically independent from each other. Here authors report that a subset of IHCs are electrochemically coupled in ‘mini-syncytia’.

Tuning interspecies interactions in atomic Bose–Fermi mixtures is shown to drive the system through a quantum phase transition. This enables the generation of heteronuclear molecules in the quantum-degenerate regime.

By trapping and crystallizing two highly charged ions of different neon isotopes in the same potential, a high-precision measurement of the bound-electron g-factor difference is obtained.

Hunter-gatherer populations in Africa preserve unique information about human history, but genetic sub-structures of these populations remain unclear. Using newly designed microarray and statistical methods, these authors analyse genetic compositions of southern African populations and reveal an ancient link between southern and eastern Africa.

The direct observation of hole pairing in a doped Hubbard model is demonstrated using ultracold atoms in a quantum gas microscope setting by engineering mixed-dimensional fermionic ladders.

A triangular-lattice Hubbard system realized with ultracold atoms is used to directly image spin polarons, revealing ferromagnetic correlations around a charge dopant, a manifestation of the Nagaoka effect.

A ladder-like arrangement of an ultracold gas of lithium atoms trapped in an optical lattice enables the observation of a symmetry-protected topological phase.

A single electromagnetically trapped proton is sympathetically cooled to below ambient temperature by coupling it through a superconducting LC circuit to a laser-cooled cloud of Be⁺ ions stored in a spatially separated trap.

An optical atomic clock operating on a magnetic-dipole transition in a highly charged argon ion is shown to improve uncertainties for the absolute transition frequency and isotope shift by several orders of magnitude.

Algae fine-tune protein synthesis to assembly demands of photosynthetic complexes. In land plants, this feedback control is conserved in Rubisco and partly in photosystem II, but varies or is absent in other complexes, revealing divergent evolution.

Fetal meconium does not have a detectable microbiota, as shown using 16S rRNA sequencing and culture of rectal swabs collected during elective breech caesarean sections without labour and before antibiotics, indicating that colonization occurs during and after birth.

The anomalous Nernst effect (ANE) in topological materials with large Berry curvature shows great potential for transverse thermoelectrics, but antiferromagnets typically show small ANEs. The antiferromagnet YbMnBi₂ has an ANE thermopower of 3 μV K⁻¹, similar to ferromagnets, and a larger ANE conductivity.

Direct observation of incommensurate spin correlations in doped and spin-imbalanced Hubbard chains confirms two fundamental predictions for Luttinger liquids and shows that such correlations are suppressed by interchain coupling.

A very precise measurement of the magnetic moment of a single electron bound to a carbon nucleus, combined with a state-of-the-art calculation in the framework of bound-state quantum electrodynamics, gives a new value of the atomic mass of the electron that is more precise than the currently accepted one by a factor of 13.

Multiple high-precision measurement campaigns at CERN of the antiproton-to-proton charge-to-mass ratio—to a precision of 16 parts per trillion—in a cryogenic multi-Penning trap offer no evidence of charge–parity–time violation, and set stringent limits on the clock-weak-equivalence principle.

A high-precision, high-field test of quantum electrodynamics measuring the bound-electron g factor in hydrogen-like tin is described, which—together with state-of-the-art theory calculations—yields a stringent test in the strong-field regime.

RNA-dependent RNA polymerases from segmented negative stranded RNA viruses catalyze genome replication and viral transcription. Here, the authors present the cryo-EM structure of full-length La Crosse virus polymerase and structurally characterize the pre-initiation and elongation states, which is of interest for the development of polymerase inhibitors.

Entangled particles some distance apart can be used to show the strikingly nonlocal nature of quantum mechanics. Here the authors generate spatially separated pairs of helium atoms by colliding Bose-Einstein condensates and show that they are entangled by observing nonlocal correlations.

Laser-plasma interaction can provide alternative platform over conventional method for particle and photon beam generation. Here the authors demonstrate generation of gamma ray and neutron beams from intense laser interaction with near critical density plasma.

The precision of laser spectroscopy of highly charged ions is improved by eight orders of magnitude by cooling trapped, highly charged ions and using quantum logic spectroscopy, thereby enabling tests of fundamental physics.

The connection between the topological properties of the ground state and non-equilibrium dynamics remains obscure. Here, Tarnowski et al. define and measure a linking number between static and dynamical vortices, which directly corresponds to the ground-state Chern number.

The BIG Bell Test, which used an online video game with 100,000 participants worldwide to provide random bits to 13 quantum physics experiments, contradicts the Einstein–Podolsky–Rosen worldview of local realism.

Magnetic polarons are imaged with single-site spin and density resolution in the low-doping regime of the atomic Fermi–Hubbard model, showing that mobile delocalized doublons are necessary for polaron formation.

In addition to hyperfine splitting effects, isotope shifts of atomic electronic energy levels allow the investigation nuclear properties. Here, the authors study the isotope dependence of the Zeeman effect in litihium-like calcium isotopes in a Penning-trap setup and find good agreement with QED calculations.

The ATLAS Collaboration reports the observation of the electroweak production of two jets and a Z-boson pair. This process is related to vector-boson scattering and allows the nature of electroweak symmetry breaking to be probed.

CAR-T cell therapy targeting CD19 is not as efficient to treat lymphoma with nodal dissemination as it is for B cell leukaemia. Here, the authors generate CAR-T cells against CXCR5 and show they inhibit tumour growth by depleting both B and follicular T helper cells in lymphoma models.

This megastudy testing different interventions finds that honesty oaths are effective and can mitigate tax evasion in an incentivized game.

The thymus harbors a complex constitutively active inflammatory network with innate-like T cells representing one of its central nodes. Here, the authors show that these cells can induce tolerance to inflammation-associated self-antigens, a class of molecules that otherwise largely mirrors the spatial and temporal distribution of pathogen-derived antigens.

The magnetic moment of the proton is directly measured with unprecedented precision using a double Penning trap.

The ATLAS Collaboration reports a measurement of the ratio of the decay rates of W bosons to τ leptons and muons, in agreement with universal lepton couplings as postulated in the standard model of particle physics.

The ATLAS experiment at the Large Hadron Collider reports a search for charged-lepton-flavour violation in decays of Z bosons into a τ lepton and an electron or muon of opposite charge.

Species’ range shifts projections are usually based on climate and land cover variables. Here, the authors use long-term records for bird species to show that species distribution models accounting for climate and land cover often fail to predict observed range shifts.

The measurement of the total cross-section of proton–proton collisions is of fundamental importance for particle physics. Here, the first measurement of the inelastic cross-section is presented for proton–proton collisions at an energy of 7 teraelectronvolts using the ATLAS detector at the Large Hadron Collider.

Ten years after the discovery of the Higgs boson, the ATLAS  experiment at CERN probes its kinematic properties with a significantly larger dataset from 2015–2018 and provides further insights on its interaction with other known particles.

By periodically modulating the position of degenerate fermions unidirectionally in a three-dimensional optical lattice, antiferromagnetic correlations in this many-body system can be reduced, enhanced or even switched to ferromagnetic correlations.

High salt intake changed the gut microbiome and increased T_H17 cell numbers in mice, and reduced intestinal survival of Lactobacillus species, increased the number of T_H17 cells and increased blood pressure in humans.

Satellite-borne radar systems are promising tools to obtain spatial habitat data with complete geographic coverage. Here the authors show that freely available Sentinel-1 radar data perform as well as standard airborne laser scanning data for mapping biodiversity of 12 taxa across temperate forests in Germany.

Dendritic cells (DC) are known to promote cancer progression by suppressing antitumor immunity. Here, Rehm et al. describe a mechanism whereby lymphoma cells induce C/EBPβ activation in DCs, which in turn secrete cytokines that support the proliferation and survival of lymphoma cells.