Quantum mechanics articles from across Nature Portfolio

Critical quantum sensing is now a well-established approach, based on the exploitation of quantum phase transitions. This work shows that a collective quantum advantage can be achieved when using coupled critical sensors, a conceptual result of practical relevance for parametrically coupled solid-state quantum resonators.

Our understanding of the phase diagram of twisted graphene structures is incomplete. Now, twisted trilayer graphene is examined using a technique that locally images quantum oscillations and shows that a nematic semimetal is favoured at low density.

There is a natural though unexpected resonance between the concept of intersectionality — the simultaneous and compounded impact of two or more axes of discrimination — and that of emergence in physics.

Questioning the validity of axioms can teach us about physics beyond the standard model. A recent search for the violation of charge conservation and the Pauli exclusion principle yields limits on these scenarios.

Some quantum acoustic resonators possess a large number of phonon modes at different frequencies. Direct interactions between modes similar to those available for photonic devices have now been demonstrated. This enables manipulation of multimode states.

A milestone for the coherence time of a macroscopic mechanical oscillator may be a crucial advance for enabling the development of quantum technologies based on optomechanical architectures and for fundamental tests of quantum mechanics.

Two studies explore strongly correlated states of Bose–Fermi excitonic complexes realized in two distinct solid-state platforms, setting the stage for tabletop quantum simulators.

Reconstructing the motional quantum states of massive particles has important implications for quantum information science. Motional tomography of a single atom in an optical tweezer has now been demonstrated.