Nature Physics, Published online: 22 August 2025; doi:10.1038/s41567-025-02970-1
Studies of Bloch oscillations in many-body systems remain limited due to their interaction-induced damping. Now, such oscillations have been observed in a solitonic wave packet of atoms in a Bose gas at the mesoscopic scale.
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- Bloch oscillations of a soliton in a one-dimensional quantum fluid
- Extended native gate sets to unlock the performance of quantum processorsNature Physics, Published online: 21 August 2025; doi:10.1038/s41567-025-02991-w Quantum operations are modelled as unitary matrices, yet experimental implementations have been restricted to only a few gate types. This fundamental limitation has now been overcome using a scheme that combines frequency control with microwave driving, enabling universal implementation of arbitrary two-qubit operations.
- Universal quantum gate set for Gottesman–Kitaev–Preskill logical qubitsNature Physics, Published online: 21 August 2025; doi:10.1038/s41567-025-03002-8 There are many quantum systems that act as high-quality quantum harmonic oscillators, and they can be used to store quantum information using the Gottesman–Kitaev–Preskill code. Entangling gates have now been demonstrated between two of these qubits.
- Quantum logic with bosonic error correctionNature Physics, Published online: 21 August 2025; doi:10.1038/s41567-025-03011-7 The most commonly pursued quantum error-correction schemes encode quantum information using multiple two-level qubits. Now, two logical qubits have been encoded in the infinite-dimensional bosonic motional degrees of freedom of a trapped ion.
- Evasive condensate caught by fingerprintsNature Physics, Published online: 20 August 2025; doi:10.1038/s41567-025-03017-1 Like charges can pair up to make superconductors, so intuitively opposite charges should also have no trouble forming pairs. But condensates of electron–hole pairs are not common — one must search carefully for their fingerprints.
- Optical signatures of interlayer electron coherence in a bilayer semiconductorNature Physics, Published online: 20 August 2025; doi:10.1038/s41567-025-02971-0 Condensates of excitons have been observed in the quantum Hall regime, but evidence for their existence at low magnetic fields remains controversial. Now evidence of coherence between optically pumped interlayer excitons in MoS2 marks a step towards confirming exciton condensation at low magnetic fields.
- Image-guided treatment of mouse tumours with radioactive ion beamsNature Physics, Published online: 19 August 2025; doi:10.1038/s41567-025-02993-8 Particle therapy is subject to uncertainties in the range of the beam. In this study, tumours in the necks of mice were treated with radioactive ion beams, which enabled real-time verification of the beam range.
- Coherent control of magnon–polaritons using an exceptional pointNature Physics, Published online: 19 August 2025; doi:10.1038/s41567-025-02998-3 Deterministic control of the gain–loss balance in non-Hermitian systems remains challenging. A magnonic hybrid platform is now shown to enable this and, hence, coherently control excitations by leveraging an exceptional point.
