Quantum mechanics articles from across Nature Portfolio

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.

Confining atoms to lattices can modify their interaction and collision. Here the authors show suppression of dipolar relaxation in the form of reduced decay rate of dysprosium atoms in quasi-2D regime.

Quantum annealing is usually discussed as a means of finding an optimal solution for a problem where there are many local minima, such as the travelling salesman. Here, Zhao et al present an intriguing example of quantum annealing in the case of the frustrated magnet α-CoV₂O₆, where a transverse magnetic field triggers the quantum annealing process.

The Majorana Demonstrator experiment reports searches for the violation of the Pauli exclusion principle and of charge conservation. In the absence of a signal, exclusion limits for these processes are reported.

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.

The 2022 Nobel Prize in Physics has been awarded “for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science”, a long-anticipated topic for the prize.