Nature Physics, Published online: 21 June 2024; doi:10.1038/s41567-024-02548-3
Acoustic and optical traps enable contactless manipulation of objects, but trapping has been limited to homogeneous environments. Wavefront shaping now extends this versatile manipulation tool to dynamic and disordered media.
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- Wavefronts wield tweezers amid disorder
- Collective flow of fermionic impurities immersed in a Bose–Einstein condensateNature Physics, Published online: 21 June 2024; doi:10.1038/s41567-024-02541-w The complex interactions arising in mixtures of bosons and fermions make it hard to understand their coupled dynamics. The collective oscillations of fermions embedded in a boson condensate have now been characterized in an ultracold-atom experiment.
- Wave-momentum shaping for moving objects in heterogeneous and dynamic mediaNature Physics, Published online: 21 June 2024; doi:10.1038/s41567-024-02538-5 Although manipulation of objects using light and sound waves is an established technique, it has so far been confined to static environments. Iterative tailoring of acoustic far fields now allows control of objects in disordered and dynamic media.
- Quantum squeezing in a nonlinear mechanical oscillatorNature Physics, Published online: 21 June 2024; doi:10.1038/s41567-024-02545-6 Mechanical modes promise applications in continuous-variable quantum information processing, but only if the final two elements—squeezing and nonlinearity—are achieved. Experiments with an oscillator coupled to a transmon qubit now achieve this.
- Critical delay accumulationNature Physics, Published online: 20 June 2024; doi:10.1038/s41567-024-02507-y In many schedule-based systems, timeliness is paramount. A recent study provides insights into delay accumulation in networks, revealing a phase transition with connections to the physics of interfaces.
- Geometry-driven migration efficiency of autonomous epithelial cell clustersNature Physics, Published online: 19 June 2024; doi:10.1038/s41567-024-02532-x The collective migration of cell clusters is modulated by substrate geometry through a combination of velocity and polarity alignment.
- Hole spins somersault in a CMOS quantum computerNature Physics, Published online: 19 June 2024; doi:10.1038/s41567-024-02556-3 The rotation of holes jumping between quantum dots in silicon quantum computers creates additional complexity for two-qubit operations. Understanding the rules of this somersaulting movement is key to the progress of hole-based qubit technology.
- Violation of Bell inequality by photon scattering on a two-level emitterNature Physics, Published online: 19 June 2024; doi:10.1038/s41567-024-02543-8 A semiconductor quantum dot can passively mediate interactions between two photons, enabling the creation of entangled photon states.
