Nature Physics, Published online: 06 March 2026; doi:10.1038/s41567-026-03209-3
In a semiconductor bilayer system, local moments in one layer interact with itinerant carriers in the other to realize a two-dimensional topological Kondo insulator.
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- Kondo with a topological twist
- Transient grating spectroscopy down to the atomic length scaleNature Physics, Published online: 06 March 2026; doi:10.1038/s41567-026-03203-9 Free-electron lasers generate intense, femtosecond and sub-nanometre wavelength pulses. Incorporating such X-ray light into transient grating spectroscopy reveals electron dynamics at the nanometre length scale.
- Cavity-enhanced spectroscopy in the deep cryogenic regime for quantum sensing and metrologyNature Physics, Published online: 06 March 2026; doi:10.1038/s41567-026-03204-8 Operating cavity-based spectrometers at low temperature has several advantages, such as improved sensitivity. Now, a cavity-enhanced spectrometer is demonstrated down to 4 K.
- Logical multi-qubit entanglement with dual-rail superconducting qubitsNature Physics, Published online: 06 March 2026; doi:10.1038/s41567-026-03211-9 Quantum computers often exhibit a bias in the type of error that is the most common or severe. Entanglement has now been demonstrated for qubits encoded with an error correction code that is designed to efficiently handle biased errors.
- The coarsening of biomimetic condensates in an active fluid is non-self-similarNature Physics, Published online: 06 March 2026; doi:10.1038/s41567-026-03191-w A study of condensates that mimic biological ones within a reconstituted cytoskeleton reveals the mechanisms underlying the coarsening of the condensate.
- Dots of entropyNature Physics, Published online: 04 March 2026; doi:10.1038/s41567-026-03200-y Irreversibility is linked to the production of entropy and relaxation to thermal equilibrium. Entropy production has now been measured at the nanoscale using quantum dots.
- A universal scheme to self-test any quantum state or measurementNature Physics, Published online: 03 March 2026; doi:10.1038/s41567-026-03181-y Self-testing makes it possible to certify quantum properties without having to trust measurement or communication devices. A protocol has now been developed that allows the self-testing of any quantum state or measurement.
- Quantum-limited metrology of macroscopic spin ensemblesNature Physics, Published online: 25 February 2026; doi:10.1038/s41567-026-03187-6 Quantum fluctuations have been detected in a macroscopic, millimole-scale solid-state spin ensemble without the use of external excitations, enabling non-invasive quantum sensing techniques.
