Nature Physics, Published online: 26 March 2025; doi:10.1038/s41567-025-02782-3
A complete theoretical understanding of many simple problems in quantum physics is still lacking, especially when entanglement is involved. Now the full set of possible observations has been established for a minimal scenario of shared entanglement.
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- Quantum statistics in the minimal Bell scenario
- Simulating two-dimensional lattice gauge theories on a qudit quantum computerNature Physics, Published online: 25 March 2025; doi:10.1038/s41567-025-02797-w Qubit-based simulations of gauge theories are challenging as gauge fields require high-dimensional encoding. Now a quantum electrodynamics model has been demonstrated using trapped-ion qudits, which encode information in multiple states of ions.
- Active membrane deformations of a minimal synthetic cellNature Physics, Published online: 24 March 2025; doi:10.1038/s41567-025-02839-3 How cells actively change their shape is an open question. Now, a reconstituted minimal cytoskeleton composed of microtubules and molecular motors is shown to produce membrane fluctuations that drive active shape changes in synthetic cells.
- Light-induced cortical excitability reveals programmable shape dynamics in starfish oocytesNature Physics, Published online: 24 March 2025; doi:10.1038/s41567-025-02807-x Optogenetically induced chemo-mechanical excitations are used to drive and study shape deformations in starfish oocytes. Understanding and eventually controlling such waves is important for the development of synthetic cells.
- Deterministic remote entanglement using a chiral quantum interconnectNature Physics, Published online: 21 March 2025; doi:10.1038/s41567-025-02811-1 Large quantum computers are likely to require methods of connecting devices by transmitting and absorbing photons. Entanglement between two superconducting qubit devices has now been established using a waveguide with tunable directionality.
- Interplay between topology and correlations in the second moiré band of twisted bilayer MoTe<sub>2</sub>Nature Physics, Published online: 20 March 2025; doi:10.1038/s41567-025-02803-1 It may be possible to find non-Abelian electronic states in the higher bands of flat-band materials. Now a detailed transport study of the second moiré band of twisted bilayer MoTe2 maps out several topological and magnetic states.
- High-resolution tunnelling spectroscopy of fractional quantum Hall statesNature Physics, Published online: 20 March 2025; doi:10.1038/s41567-025-02830-y Local probes of quantum Hall states are still in their infancy. Now scanning tunnelling measurements were used to extract the energy gap of candidate non-Abelian fractional states, which are found to be encouragingly large for applications.
- Ferromagnetism and topology of the higher flat band in a fractional Chern insulatorNature Physics, Published online: 20 March 2025; doi:10.1038/s41567-025-02804-0 In analogy with quantum Hall systems, it may be possible to find non-abelian anyons in the higher bands of Chern insulators. Now, the phase diagram of the second moiré band of twisted MoTe2 is explored, laying the groundwork for such investigations.
