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Measurement-induced quantum phases provide prime examples of non-trivial many-body dynamics and collective phenomena, but their experimental detection is difficult due to the post-selection barrier. Here, the authors provide a spin-wave-based approach to monitored quantum dynamics in long-range interacting systems, overcoming this challenge.

Quantum emitters respond to weak near-field coupling with topological photonic waveguides, revealing polarization and spectral reshaping.

The authors report observations of a dense and inhomogeneous ring at a surprisingly large distance from the trans-Neptunian body Quaoar.

Nuclear spins in diamond are promising for applications in quantum technologies due to their long coherence times. Here, the authors demonstrate a scalable electrical readout of individual intrinsic ¹⁴N nuclear spins in diamond, mediated by hyperfine coupling to electron spin of the NV center, as a step towards room-temperature nanoscale diamond quantum devices.

Parity-time symmetry breaking and related non-Hermitian phenomena, such as high-order exceptional points, have attracted significant interest across various experimental platforms. Here the authors demonstrate a third-order exceptional point induced by parity-time symmetry breaking in a dissipative trapped ion.

Plasmonics allows precise engineering of light–matter interactions and is the driver behind many optical devices. The local observation of a plasmonic quantum wave packet is a step towards bringing these functionalities to the quantum regime.

Precise quantum state preparation plays an important role in quantum information processing. Here, Premaratneet al. use stimulated Raman adiabatic passage to transfer population from a superconducting transmon qubit to a cavity Fock state.

Despite the remarkable successes of open quantum systems theory, the effect of system-environment interactions and energy exchange on the system dynamics still lacks a satisfactory description in the strong coupling regime. Here, the authors experimentally address the problem using a trapped Mg ion by studying the dynamics of pseudo spin coupled to a single motional mode, supporting a minimal dissipation Ansatz approach.

Information leaked by a quantum system into its environment causes decoherence but if it is recorded then it can be used to infer the quantum state. Ficheux et al. monitor the relaxation and dephasing of a qubit and show that this allows all three components of the qubit to be probed simultaneously.

Pump-probe method is commonly used for studying ultrafast molecular dynamics. Here, the authors discuss alternative approach of using time-dependent ultrafast light emission from excited molecules coupled to a plasmonic nanocavity instead of using probe pulse.

Existing schemes for coherent control and measurements in superconducting circuits rely on the coupling between superconducting qubits and cavity photons. Here the authors implement conditional fluorescence readout of a fluxonium qubit placed inside an open waveguide, with no coupling to cavity modes.

The radial-velocity technique could detect a small gas giant orbiting a binary star and determine its mass: 65.2 ± 11.8 Earth masses. The system also hosts a smaller inner planet, making it one of the few known multiplanetary circumbinary systems.

Landau-Zener transitions near an avoided level crossing are a broadly relevant concept in quantum systems. Here the authors use a superconducting flux qubit to shed new light on the role of the environment in Landau-Zener tunneling by observing a crossover between weak and strong coupling.

Intrinsic molecular resources are used to implement a two-qubit iSWAP gate using individually trapped X¹Σ⁺ NaCs molecules.

Quantum gates in 2D ion crystals are more challenging than in 1D. Here, the authors use their 2D ion trap platform and acousto-optical deflectors to demonstrate a 2-qubit gate that can stand the ion micromotion in such configuration.

The one-dimensional laser cooling of positronium enables testing of quantum electrodynamics and could realize Bose–Einstein condensation in positronium.

Genome-wide meta-analysis with individuals of East Asian or European ancestry identifies 176 loci associated with schizophrenia. Despite consistent genetic effects across populations, polygenic risk models trained in one population have reduced performance in the other population.

In recent years, notable theoretical and experimental progress has been made in understanding both the classical and quantum versions of the Mpemba effect, in which a hotter system freezes faster than a cooler one. This Perspective discusses this phenomenon in open and isolated quantum systems.

Chariklo, Haumea and potentially Chiron are the only known ringed Solar System objects that are not giant planets. The rings of these minor bodies are relatively further from their hosts than those around giant planets; this increase is shown to be due to resonances driven by modest topographic features or elongations.

The inherent strangeness of quantum mechanics means it is possible to detect objects using single-quantum particles even if they do not interact directly. Peise et al. realize such an ‘interaction-free measurement’ by exploiting the quantum Zeno effect in a BEC, obviating the need for single-particle sources.

Quantum information processing requires a system in which a single photon controls a single atom and vice versa. Here, the authors demonstrate such reciprocal operation and achieve coherent manipulation of a quantum dot by a few photons sent on an optical cavity.

It is an old adage in quantum physics that the observation of a system changes its properties, as exemplified by the quantum Zeno effect. Now, Burgarth et al.show that such repeated measurement of a quantum system actually enriches its dynamics, letting it explore a much larger algebra than it did before.

Dissipative quantum phase transitions in open quantum systems have been extensively studied, but experiments have been mostly limited to first-order transitions. Here, the authors report the observation of first- and second-order dissipative quantum phase transitions in a superconducting Kerr resonator under two-photon pumping.

Investigations of quantum thermal machines and Liouvillian exceptional points have rarely crossed each other. Here, the authors realize experimentally a quantum Otto engine using a single trapped ion, and show that crossing a Liouvillian exceptional point during the cycle increases the engine performance.

Genome-wide analyses identify 30 independent loci associated with obsessive–compulsive disorder, highlighting genetic overlap with other psychiatric disorders and implicating putative effector genes and cell types contributing to its etiology.

An all-optical manipulation of the Berry phase based on stimulated Raman adiabatic passage is demonstrated in an individual nitrogen–vacancy centre in diamond. The adiabatic control is 100 times faster than that demonstrated before in atomic systems.

The coupling of defect centers in hBN to phonons has been mostly studied using optical techniques. Here, the authors use a method based on incorporation of electron-driven photon sources in an electron microscope to probe ultrafast dynamics of quantum emitters in hBN, with a dephasing time of less than 200 fs.

Quantum-enhanced measurements use quantum mechanical effects to enhance measurement sensitivity of classical quantities; but the required quantum states are generally highly entangled and difficult to produce. In this study, the use of entangled states is avoided allowing Heisenberg-limited measurements.