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All quantum systems are connected to their environment, and this reduces their quantumness through decoherence. Here, the authors show that the interaction between a macroscale quantum system—a micromechanical oscillator—and its environment leads to non-Markovian Brownian motion

We leverage advances in integrated photonics to generate low-noise microwaves with an optical frequency division architecture that can be low power and chip integrated.

The integration of oxide nanoelectronics with silicon platforms is a necessary step for the fabrication of ultrahigh-density devices. Here, the authors grow a LaAlO₃/SrTiO₃interface directly on silicon, and show the reversible creation of a two-dimensional electron gas confined within nanowires located on the surface.

The authors describe a susceptibility of the peripheral nervous system to neuronal senescence with age or injury relevant for sensory dysfunction, such as chronic pain.

Sortilin is an endocytosis receptor with a luminal β-propeller domain. Here the authors present the structures of the β-propeller domain at neutral and acidic pH, which reveal that sortilin dimerises and undergoes conformational changes at low pH and further propose a model for low pH-induced ligand release by endocytosis receptors.

Laboratory simulation experiments with isomer selective photoionization detection techniques reveal that octasulfur (S₈) and sulfanes can be easily formed in low temperature H₂S interstellar ice analogues exposed to ionizing radiation, suggesting a critical link between sulfur chemistry on ice coated nanoparticles in molecular clouds and the inventory of sulfur compounds in our Solar System.

Observation of ²⁸O and ²⁷O through their decay into ²⁴O and four and three neutrons, respectively, is reported, with the ²⁸O nucleus being of particular interest owing to proton and neutron magic numbers and its extremely asymmetric neutron-to-proton ratio.

Ferroelectric tunnel junctions, where electrical transport occurs across two electrodes separated by a ferroelectric layer, could be used for future non-volatile computer memories. Here, the authors employ graphene as an electrode in tunnel junctions for interface-facilitated enhancement of device performance.

Quantum memories for storing and releasing photons are required for quantum computers and quantum communications. So far, their operational bandwidths have limited data-rates to megahertz. Researchers now demonstrate coherent storage and retrieval of subnanosecond low-intensity light pulses with spectral bandwidths exceeding 1 GHz.

Imaging the charge flow in photoexcited molecules would provide key information on photophysical and photochemical processes. Here the authors demonstrate tracking in real time after photoexcitation the change in charge density at a specific site of 2-thiouracil using time-resolved X-ray photoelectron spectroscopy.

Observing quantum effects in a mechanical oscillator requires it to be close to a pure quantum state, rather than a thermal mixture. Here a librational mode of a levitated nanoparticle is cooled close to its ground state without using cryogenics.

Electron spin in quantum dots are extensively studied as a qubit for quantum information processing. However, the coherence of electron spin is deleteriously influenced by nuclear spin. Quantum-dot holes are a potential alternative. Full control over hole-spin qubits is now achieved using picosecond lasers.

The accelerations of a pulsar and a white dwarf in a three-star system differ by at most a few parts per million, providing a much improved constraint on the universality of free fall.

The so-called Green Machine is an old concept for a joint detection receiver that would allow superadditive optical communication capacity, but earlier designs are very hard to implement. Here, the authors propose a modified scheme and use it to demonstrate superadditive capacity with the BPSK Hadamard codewords.

Julius Nitsche et al. demonstrate that binding of two calmodulin molecules displaces the regulatory domain of the plasma-membrane Ca²⁺-ATPase ACA8 to fully activate this Ca²⁺ pump by relieving the autoinhibition. This work provides structural evidence for the previously proposed bimodular activation mechanism.

Researchers use phase-change materials to demonstrate an integrated optical memory with 13.4 pJ switching energy.

In-plane polarized ferroelectric thin films typically exhibit complicated multidomain states, not desirable for optoelectronic device performance. Here, the authors combine interfacial symmetry engineering and anisotropic strain to design single-domain in-plane polarized ferroelectric BaTiO₃ films.

This review covers state-of-the-art quantum teleportation technologies, from photonic qubits and optical modes to atomic ensembles, trapped atoms and solid-state systems. Open issues and potential future implementations are also discussed.

Strong light-matter coupling has been realized at the level of single atoms and photons throughout most of the electromagnetic spectrum, except for the THz range. Here, the authors report a THz-scale transport gap, induced by vacuum fluctuations in carbon nanotube quantum dot through the deep strong coupling of a single electron to a THz resonator.

Remote quantum entanglement is demonstrated in a micromachined solid-state system comprising two optomechanical oscillators across two chips physically separated by 20 cm and with an optical separation of around 70 m.

Integrated nanophotonics is an emerging research direction that has attracted great interests. Here, the authors show upon substituting Te with Se, the thermal conductivity of ordered Ge₂Sb₂Te₅ transitions from an electron to a phonon dominated regime.

Coherently interfacing microwave and optical radiation at the single photon level is an outstanding challenge in quantum technologies. Here, the authors show bi-directional on-chip conversion between MW and optical frequencies exploiting piezoelectric actuation of a gallium phosphide optomechanical resonator.

The authors present a new approach to create and edit custom spatiotemporal neural activity patterns in awake, behaving animals with extremely high spatial and temporal precision. They present novel opsins optimized for multiphoton optogenetics.

Temporal dissipative soliton formation in a free-space femtosecond enhancement cavity with a thin Kerr medium is reported. Locking a 350-fs, 1,035-nm pulse train with a repetition rate of 100 MHz to this cavity-soliton state generates a 37-fs sech²-shaped pulse with a peak-power enhancement of 3,200.

Ouzounov et al. report calcium imaging with three-photon microscopy in the mouse brain. The approach enabled noninvasive recording of activity with high spatial and temporal resolution from GCaMP6-labeled neurons located as deep as the hippocampus.

Drug delivery implants suffer from diminished release profiles due to fibrous capsule formation over time. Here, the authors use soft robotic actuation to modulate the immune response of the host to maintain drug delivery over the longer-term and to perform controlled release in vivo.

The capability to move towards or away from light sources, namely phototaxis, is an essential feature of many microorganisms like bacteria or motile cells. Lozano et al. show an artificial phototaxis system that enables autonomous navigation of colloidal Janus spheres in a laser-generated light landscape.

How genetic predisposition drives late-onset disease risk remains unclear. Here, the authors show that epigenetic predisposition via NR3C1-dependent early postnatal 3D gene regulation primes astrocytes for lifelong immune vulnerability.

Quantum light injected in one interferometer has demonstrated to improve the phase sensitivity in relevant applications. Here, the authors analyse and demonstrate the potential advantage of quantum light, in particular quantum correlated bipartite states, in a system of two interferometers aimed at the detection of Planck scale effects.

A technique that controls electron spins using single optical pulses far detuned from the optical transition has been demonstrated. This approach may enable fast spin manipulation in a variety of solid-state systems.

Structural and functional analysis shows that only SH3 domains forming tertiary contacts with p85 release p110 inhibition, revealing a binding-mode–based selection mechanism that ensures specific activation of PI3K.

Optically trapped and levitated nanoparticles can be used to study macroscopic quantum effects, but fully controlling their motion is difficult. Now, all six roto-translational degrees of freedom have been cooled, although not to the quantum ground state.

Reaching the strong coupling regime is a crucial step towards room-temperature quantum control with mesoscopic objects. Here, the authors use coherent scattering to demonstrate room temperature strong coupling between a levitated silica particle and a high-finesse optical cavity.

Controlling structures at the atomic level provides an opportunity to design and understand catalysts. Here the authors use thin-film deposition to fabricate perovskite heterostructures in a non-equilibrium manner to assess the effects on electrocatalytic activity for oxygen reduction.

The reduction in thermal conductivity is usually achieved by increasing the scattering rate or localization of heat carriers. Here, the authors propose a mechanism to suppress the thermal transport in amorphous systems such as SiTe binary alloys via tailoring the cross-linking network between the atoms.

The use of optical phase sensitive amplifiers (PSA) has been shown to allow fast quantum tomography of Gaussian states, but non-Gaussian states are a key component for quantum computation using optical continuous-variable systems. Here, the authors extend PSA-enhanced high-bandwidth homodyne detection to non-Gaussian states.

'Recent developments in spectroscopy have witnessed the establishment of dual-comb techniques. In this work the authors demonstrate dual-comb photothermal spectroscopy providing gas sensing with superfine resolution and high sensitivity

In this work the authors demonstrate on-chip integration of Brillouin lasing operating at visible wavelengths, with engineered design for stable output. This technical and scientific advance will help develop integrated light sources for quantum computing or atomic and molecular spectroscopy.