Two-dimensional quantum materials provide a unique platform for new quantum technologies, because they offer the flexibility of combining different monolayers featuring radically distinct quantum states. Different two-dimensional materials can provide building blocks with features like superconductivity, magnetism, and topological matter. But so far, creating a monolayer of heavy-fermion Kondo matter – a state of matter dominated by quantum entanglement – has eluded scientists. Now, researchers at Aalto University have shown that it’s theoretically possible for heavy-fermion Kondo matter to appear in a monolayer material, and they’ve described the microscopic interactions that produces its unconventional behavior. These findings were published on February 23, 2024 in Nano Letters.

Researchers at the University of California San Diego have used an advanced optical technique to learn more about a quantum material called Ta2NiSe5 (TNS).

India announced it’s investing Rs.6003.65 Crore (approximately $740 million USD) over an eight-year span, from 2023-24 to 2030-31 for its National Quantum Mission.

A significant breakthrough has been achieved by quantum physicists from Dresden and Würzburg. They’ve created a semiconductor device where exceptional robustness and sensitivity are ensured by a quantum phenomenon. This topological skin effect shields the functionality of the device from external perturbations, allowing for measurements of unprecedented precision. This remarkable advance results from the clever arrangement of contacts on the aluminum-gallium-arsenide material. It unlocks potential for high-precision quantum modules in topological physics, bringing these materials into the semiconductor industry's focus.

Researchers at the Helmholtz-Zentrum Berlin (HZB) have made a significant leap in the field of quantum materials by developing a novel measurement method that accurately detects minuscule temperature differences in the thermal Hall effect. This groundbreaking technique, capable of measuring temperature variations as small as 100 microkelvin, overcomes previous challenges posed by thermal noise, marking a pivotal moment in the study of quantum materials.

Measurement of the non-Hermitian skin effect via iteration for the OBC setup. a, Elements of the initial, randomly generated current vector displayed in polar coordinates for a six-site setup. b, Flow chart of the iterative procedure. c, Final current configuration in the system after 40 iterations. d, Evolution of the phase of each vector element versus the iteration number. e, Evolution of the amplitude of each element versus the iteration number, in units of the largest injected current (150 nA). This final current configuration shows an exponential decay as a function of the lead index, from 6 to 1 (from dark to light blue), which is a direct manifestation of the non-Hermitian skin effect in experiment.