Nature Physics, Published online: 28 March 2025; doi:10.1038/s41567-025-02821-z
Quantum electrodynamics (QED) is a cornerstone of the standard model of particle physics. A decade-long effort to simulate QED on a two-dimensional lattice has now succeeded — through the use of a trapped-ion quantum computer based on multidimensional ‘qudits’, which are uniquely suited to the challenge.
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- A qudit quantum computer for simulation of two-dimensional quantum electrodynamics
- The mechanics of protein sweet spotsNature Physics, Published online: 28 March 2025; doi:10.1038/s41567-025-02826-8 Proteins rely on dynamic flexibility to function as life’s molecular machines. Now, artificial intelligence predictions and mechanics experiments reveal how mutations at specific protein sites modulate enzyme catalysis, advancing protein design.
- Twist angle serves as a tuning knob for superconductivityNature Physics, Published online: 28 March 2025; doi:10.1038/s41567-025-02829-5 Ultra-low-temperature scanning tunnelling spectroscopy measurements indicate that twisting the layers in heterostructures making up a single layer of superconducting NbSe2 on graphene leads to momentum-dependent changes in the superconducting gap. This ability could enable the development of artificial superconductors with nontrivial magnetic and topological properties.
- Enzymes as viscoelastic catalytic machinesNature Physics, Published online: 28 March 2025; doi:10.1038/s41567-025-02825-9 Enzymes are viscoelastic, deformable machines. Mutating high-strain regions in these machines affect their catalytic function.
- Acousto-dewetting enables droplet microfluidics on superhydrophilic surfacesNature Physics, Published online: 28 March 2025; doi:10.1038/s41567-025-02844-6 In droplet microfluidic setups, droplets are driven around on a surface, which is normally hydrophobic. Now, droplet microfluidics with superhydrophilic substrates is shown to also be feasible by exploiting acoustic effects.
- Quantifying second-messenger information transmission in bacteriaNature Physics, Published online: 27 March 2025; doi:10.1038/s41567-025-02848-2 Bacterial second messengers carry signals from the environment to target proteins in the cell. Now the associated information transmission capacity is quantified and the optimal frequency to maximize it is determined.
- Quantum statistics in the minimal Bell scenarioNature 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.
- The limits of quantum correlationsNature Physics, Published online: 26 March 2025; doi:10.1038/s41567-025-02836-6 Measurements on quantum particles produce random outcomes whose correlations can sometimes never be explained by classical physics. The complete set of possible quantum correlations for two particles under two measurements has now been identified.
