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Quantum trajectory frameworks describe systems weakly coupled to their environment. Here, by including an extra 1D variable in the dynamics, the authors introduce a quantum trajectory framework for time local master equations derived at strong coupling while keeping the computational complexity under control.

Controllable non-reciprocal hopping is crucial for emerging photonic technologies. Here, the authors demonstrate a tunable microwave system exhibiting non-Hermitian, phase-non-reciprocal, and nonlinear dynamics, with potential relevance to sensing, quantum networks, and synthetic photonic materials.

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

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.

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.

Engineered dissipation is used to deterministically produce and stabilize entanglement between two trapped-ion quantum bits, independently of their initial states; the entanglement is stabilized even in the presence of experimental noise and decoherence.

Precise gravimetric measurements are an important but challenging task. Here, Qvarfort et al. theoretically show that, in an optomechanical cavity, only the phase of the optical output needs to be measured to obtain a precise value for the gravitational acceleration with high sensitivity.

Detecting Majorana quasi-particles requires unambiguous and experimentally accessible fingerprints. Here, the authors demonstrate the existence of a 8π-periodic fractional Josephson effect in a Kitaev wire as a signature for Majorana quasi-particles, and propose a cold atom experiment for its detection.

Charge transfer in DNA is of fundamental interest in chemistry and biochemistry and has possible applications in nano-electronics. Now it has been shown, through a combined experimental and theoretical study, that the migration of positive charges through low-lying orbitals of nucleobases (deep-hole transfer) leads to charge transfer that is faster than previously considered transport regimes.

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.

A super-Förster energy-transfer regime, where coherent and incoherent energy transport processes enhance the diffusion of excitons, is observed at room temperature by tuning the distance between the chromophores’ binding sites in a virus scaffold.

A single logical qubit is encoded, manipulated and read out using a superposition of displaced squeezed states of the harmonic motion of a trapped calcium ion.

Dynamical maps are well known in the context of classical nonlinear dynamics and chaos theory. A trapped-ion quantum simulator can be used to study the generalized version of dynamical maps for many-body dissipative quantum systems.

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.

Advancing single-atom quantum information processing necessitates a deep understanding of electron and nuclear spin dynamics. Here, using pump-probe spectroscopy, the authors detect the coherent dynamics of a nuclear and electron spin of a single hydrogenated Ti atom on MgO surface.

A cascadable all-optical NOT gate is a requirement for full-logic in optical computing. By introducing the concept of non-ground-state polariton amplification in organic semiconductor microcavities, the authors realized the operation of an all-optical cascadable universal gate.

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.

Hybrid quantum acoustic systems integrating qubits with phonons offer a novel platform for investigating open quantum systems. Kitzman et al. report control of superposition states of a transmon qubit under the effect of drive and dissipation by engineering its coupling to a bath of surface acoustic wave phonons.

The three-dimensional structure of all cloud complexes in the solar neighbourhood is revealed, showing a narrow and coherent 2.7-kpc arrangement of dense gas, in disagreement with the Gould Belt model.

The scalability of quantum information processing applications is generally hindered by loss and inefficient preparation and detection. A minimal loss network based on phonons has now been realized with trapped ions.

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.

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.

Fluctuations of atomic positions are related to several materials properties. Here the authors measure the photon number statistics via a non-equilibrium optical experiment and provide a quantum description of the interaction between photonic and phononic fields to reveal lattice dynamics fluctuations in quartz.

By mapping vibrations in molecules to photons in waveguides, the vibrational quantum dynamics of various molecules are simulated using a photonic chip.

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.

A cavity quantum electrodynamics system comprising a quantum emitter and an optical cavity is theoretically investigated. The outcoupling process for the N-photon state of the cavity is simulated. The numerical calculations predict the possibility of operating this system as a source of N-photon bundles with a tunable integer N.