Search

Researchers created a moiré superlattice in Sb₂Te₃/FeTe bilayers, producing spatially modulated superconducting gaps directly imaged with Josephson scanning tunnelling microscopy and spectroscopy, tunable by replacing Sb₂Te₃ with Bi₂Te₃.

In superconducting circuits, the nonlinearity of Josephson junctions mediates photon interactions, but they are typically dominated by two-photon processes. Here the authors observe multi-photon interactions in a superconducting circuit with Cooper-pair pairing, revealing a new regime of microwave quantum optics.

By coupling two quantum dots via a superconductor-semiconductor hybrid region in a 2D electron gas, the authors achieve efficient splitting of Cooper pairs. Further, by applying a magnetic field perpendicular to the spin-orbit field, they can induce and measure large triplet correlations in the Cooper pair splitting process.

Disorder leads to localization of electrons at low temperatures, changing metals to insulators. In a superconductor the electrons are paired up, and scanning tunnelling microscopy shows that the pairs localize together rather than breaking up and forming localized single electrons in the insulating state.

Whether and how the Dirac electrons can be driven into superconducting state remains unclear. Here, Duet al. present systematic study to demonstrate the Dirac electrons condensing into Cooper pairs on the surface of a possible topological superconductor Sr_xBi₂Se₃.

Controllable detection of singlet and triplet Cooper pair splitting via crossed Andreev reflection is demonstrated in spin-polarized quantum dots on a superconducting nanowire platform with strong spin–orbit coupling.

BaTa₂S₅, which consists of alternating layers of TaS₂ and Ba₂TaS₄, is shown to host a triplet superconducting phase at high magnetic field. This triplet phase emerges from another—more conventional—superconducting state.

By pushing scanning tunnelling spectroscopy down to millikelvin temperatures, it is now possible to image a heavy fermion superconductor and measure the superconducting gap symmetry, with gap nodes in unexpected momentum-space locations.

One of the most counterintuitive fundamental properties of quantum mechanics is non-locality, which manifests itself as correlations between spatially separated parts of a quantum system. Although experimental tests of non-locality (Bell inequalities) have been successfully conducted with pairwise entangled photons, similar demonstrations using electrons have so far not been possible. The realization of a Y-shaped tunable Cooper pair splitter, to split entangled electrons on demand, brings this one step closer.

Although quantum phase transitions are attracting increasing attention as the conceptual link between conventional and exotic states of quantum matter—having been implicated, for example, in the properties of high-temperature superconductors—there are few model systems in which they can be studied and understood. Now it is revealed that placing simple elemental chromium under pressure suppresses its normal magnetic state and gives direct experimental access to the underlying quantum phase transition responsible for these changes.

Scanned Josephson tunnelling microscopy is used to image Cooper pair tunnelling from a superconducting microscope tip to the quantum condensate of Bi₂Sr₂CaCu₂O_8+x, thus revealing the spatially modulated density of Cooper pairs predicted from several theories of the cuprate pseudogap phase.

Global Burden of Disease analysis found that in 2023, suboptimal diet was estimated to be responsible for 4 million deaths and 97 million morbidity burdens from ischemic heart disease.

The authors from the ALICE collaboration identify multiple species of mesons and baryons and measure the anisotropic flow with non-flow removal techniques in pp and p-Pb collisions at the LHC, identifying the hallmark of quark flow associated with an expanding quark-gluon plasma.

The standard model describes many aspects of particle physics but mechanisms such as the binding of quarks into hadrons, still remain a mystery. The authors theoretically outline an analogy with the Cooper pairs of a superinsulator to demonstrate that the mechanisms behind the infinite resistance of a superinsulator are analogous to that which confine quarks into hadrons.

Superconducting spintronics has the potential to enhance device functionality by realising spin polarised supercurrents with greater coherence and reduced dissipation. Here, using ferromagnetic resonance, the authors investigate the temperature dependence of the Gilbert damping for the Fe layer of Nb/Fe/Nb and Nb/Cr/Fe/Cr/Nb stacks and the impact superconducting spin triplets have on the spin pumping behaviour.

The authors have applied an eight-tissue rat multi-omic dataset to analyze the gene regulatory landscape of endurance exercise training, identifying tissue-specific regulatory patterns involved in muscle function, metabolism and immune response.

In high-temperature superconductors, a very low density of states, the pseudogap, exists even above the critical temperature. Here, the authors show that this is also the case for a conventional superconductor, titanium nitride thin films, and that this pseudogap is induced by superconducting fluctuations.

Quarks in the interior of hadrons make up most of ordinary matter, yet their observation is not possible, and their properties can only be probed indirectly. Adopting an analogy between physics of superinsulators and high energy physics, the authors present direct observations of the interior of electric mesons made of Cooper pairs by standard transport measurements.

The authors present experimental evidence of three-dimensional superinsulation in a nanopatterned slab of NbTiN. In the electric Meissner state, they find polar nematic order arising from ferroelectric alignment of short electric strings excited by external electromagnetic fields.

Single-variant and ultrarare variant burden analyses leveraging exome sequencing data from 22 cohorts identify new risk genes for amyotrophic lateral sclerosis and show cumulative effects of several rare variants on disease risk.

High kinetic inductance materials are widely used in superconducting circuits, yet their loss mechanisms are not fully understood. Here the authors study quantum circuits incorporating nanowires made of quasi-2D disordered superconductor WSi and identify localized quasiparticles as the dominant source of loss.

Hodgson, Huang, Lang et al. show that TDP-43 limits ribonucleoprotein particle condensation into paraspeckles in a concentration- and polymerization-dependent manner. They also link paraspeckle condensation to stress response and neuroprotection.

This Review highlights chip-scale superconducting coherent photon source technologies and their rich potential as an important integrated quantum hardware to advance quantum information processing and communication networks.

A measurement strategy is described that is able to read out the parity of minimal two-site Kitaev chains in real time, by coupling two Majoranas and resolving their quantum capacitance.

Chiral superconductors are very rare topological materials. Here, the authors report spontaneous magnetic fields inside the superconducting state and low temperature linear behavior in the superfluid density in LaPt₃P, suggesting a chiral d-wave singlet superconducting state.

The authors observe shot noise orders of magnitude greater than expected in superconductor/insulator/ferromagnet (V/MgO/Fe) junctions. They argue that the origin involves orbital-symmetry-controlled superconducting proximity effect and spin-triplet superconductivity in the Fe.

Natural Killer cells are key mediators of anti-tumour immunosurveillance and anti-viral immunity. Here, the authors map regulatory genetic variation in primary Natural Killer cells, providing new insights into their role in human health and disease.

Terahertz microspectroscopic imaging at subgap millielectronvolt energies of a two-dimensional superfluid plasmon in few-layer Bi₂Sr₂CaCu₂O_8+x is demonstrated, allowing the spatial resolution of its deeply subdiffractive terahertz electrodynamics.

Pairing interaction appears at room temperature in traditional superconductors with a Cooper instability in the Fermi sea. Here, Maier et al.report that in the pseudogap phase of cuprate, where this instability is absent, superconductivity arises from an increase in the strength of the spin fluctuation pairing interaction as the temperature decreases.

Werner et al. present the results of the 201 Trial, a 12-week randomized, double-blind placebo-controlled phase 2a study of risvodetinib, in patients with early untreated Parkinson’s disease. Risvodetinib was found to be safe and well tolerated.

Superconducting circuits are promising for quantum computing, but quasiparticle tunnelling across Josephson junctions introduces qubit decoherence. Ristè et al. convert a transmon qubit into its own real-time quasiparticle tunnelling detector and accurately measure induced decoherence in the millisecond range.

The interfaces between ferromagnets and superconductors receive many attentions due to emergent relativistic spin-orbit coupling. Here, the authors provide possible evidence for spin triplet Andreev reflection at the interface between a van der Waals ferromagnet Fe_0.29TaS₂ and a s-wave superconductor NbN.

Exploring the photoionization process leads to better understanding of the fundamental interactions between light and matter. Here the authors show the non-dipole contribution in the form of asymmetric photoelectron angular distribution from the ionization of argon atoms and ions.

The microscopic pairing mechanism in high-temperature superconductors remains debated. Here, the authors offer a new perspective on this problem by proposing that the strong pairing in Fermi-Hubbard type models relevant to cuprates is driven by a Feshbach resonance, which enhances interactions between doped holes.

The authors study a disordered β-Ta film, finding that quasiparticle recombination is governed by the phonon scattering time, which is faster than conventional recombination in ordered superconductors. The authors interpret the results in terms of quasiparticle localization, which helps to understand the quasiparticle relaxation in disordered superconducting circuits.

A major mystery in cuprate superconductors is how Cooper pairs form and condense. Here, the authors use RIXS and STM techniques to reveal that a charge-ordered insulating phase and enhanced bond-buckling phonons play important roles in this process.

This study shows that biomarker prediction accuracy from whole-slide images can reflect confounding by codependent biomarkers and correlated variables, suggesting that models may not learn the intended biology and may face challenges in clinical translation.