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Nature Physics
Nature Physics offers news and reviews alongside top-quality research papers in a monthly publication, covering the entire spectrum of physics. Physics addresses the properties and interactions of matter and energy, and plays a key role in the development of a broad range of technologies. To reflect this, Nature Physics covers all areas of pure and applied physics research. The journal focuses on core physics disciplines, but is also open to a broad range of topics whose central theme falls within the bounds of physics.
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Probing many-body correlations using quantum-cascade correlation spectroscopy
Nature Physics, Published online: 15 January 2024; doi:10.1038/s41567-023-02322-x
Quantum-correlated photons typically characterize strongly nonlinear quantum emitters. A two-photon correlation spectroscopy method now provides a powerful probe of weakly nonlinear many-body quantum systems.
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Emergence of highly coherent two-level systems in a noisy and dense quantum network
Nature Physics, Published online: 15 January 2024; doi:10.1038/s41567-023-02321-y
Quantum coherence is hard to maintain in solid-state systems, as interactions usually lead to fast dephasing. Exploiting disorder effects and interactions, highly coherent two-level systems have now been realized in a rare-earth insulator compound.
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Multi-ensemble metrology by programming local rotations with atom movements
Nature Physics, Published online: 15 January 2024; doi:10.1038/s41567-023-02323-w
Addressing optical transitions at the level of a single site is crucial to unlock the potential of quantum computers and atomic clocks. A scheme based on atom rearrangement now demonstrates such control with demonstrable metrological benefits.
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Precisely simple
Nature Physics, Published online: 12 January 2024; doi:10.1038/s41567-023-02331-w
Precise frequencies of nearly forbidden transitions have been ascertained in the simplest molecule, the molecular hydrogen ion. This work offers a new perspective on precision measurements and fundamental physical tests with molecular spectroscopy.
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One-ninth magnetization plateau stabilized by spin entanglement in a kagome antiferromagnet
Nature Physics, Published online: 12 January 2024; doi:10.1038/s41567-023-02318-7
Magnets with frustrated interactions are predicted to form quantum entangled states that feature measurable plateaus in their magnetization. Evidence for one of these plateau phases has now been found in a kagome lattice antiferromagnet.
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Laser spectroscopy of a rovibrational transition in the molecular hydrogen ion <InlineEquation ID="IEq1">...
Nature Physics, Published online: 12 January 2024; doi:10.1038/s41567-023-02320-z
Vibrational laser spectroscopy of the molecular hydrogen ion $${\rm{H}}_{2}^{+}$$ H 2 + offers new prospects for fundamental physics studies.
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Tales from the edge in the Weyl superconductor MoTe<sub>2</sub>
Nature Physics, Published online: 11 January 2024; doi:10.1038/s41567-023-02317-8
In its superconducting state, MoTe2 displays oscillations arising from an edge supercurrent, and when it is near niobium, there is an incompatibility between electron pairs diffusing from niobium and the pairs intrinsic to MoTe2. Insight into this competition between pairs is obtained by monitoring the noise spectrum of the MoTe2 supercurrent oscillations.
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Direct comparison of two spin-squeezed optical clock ensembles at the 10<sup>−17</sup> level
Nature Physics, Published online: 11 January 2024; doi:10.1038/s41567-023-02310-1
Noise is a fundamental obstacle to the stability of atomic optical clocks. An experiment now realizes the design of a spin-squeezed clock that improves interrogation times and enables direct comparisons of performance between different clocks.
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Edge supercurrent reveals competition between condensates in a Weyl superconductor
Nature Physics, Published online: 11 January 2024; doi:10.1038/s41567-023-02316-9
How superconducting states with different order parameter symmetries can interact with each other is not well understood. Now, the edge mode of a Weyl superconductor serves as a probe for competing condensates.
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Intrinsic simplicity of complex systems
Nature Physics, Published online: 10 January 2024; doi:10.1038/s41567-023-02268-0
Predicting the large-scale behaviour of complex systems is challenging because of their underlying nonlinear dynamics. Theoretical evidence now verifies that many complex systems can be simplified and still provide an insightful description of the phenomena of interest.
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Room-temperature long-range ferromagnetic order in a confined molecular monolayer
Nature Physics, Published online: 10 January 2024; doi:10.1038/s41567-023-02312-z
Realizing robust ferromagnetic order in two dimensions is challenging as an underlying crystalline framework is normally required. Now room-temperature ferromagnetism is demonstrated in a two-dimensional honeycomb self-assembly of confined molecules.
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The low-rank hypothesis of complex systems
Nature Physics, Published online: 10 January 2024; doi:10.1038/s41567-023-02303-0
Although using low-rank matrices is the go-to approach to model the dynamics of complex systems, its validity remains formally unconfirmed. An analysis of random networks and real-world data now sheds light on this low-rank hypothesis and its implications.
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Quantum-inspired classical algorithms for molecular vibronic spectra
Nature Physics, Published online: 10 January 2024; doi:10.1038/s41567-023-02308-9
It has been suggested that Gaussian boson sampling may provide a quantum computational advantage for calculating the vibronic spectra of molecules. Now, an equally efficient classical algorithm has been identified.
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Discrete degeneracies distinguished by the anomalous Hall effect in a metallic kagome ice compound
Nature Physics, Published online: 10 January 2024; doi:10.1038/s41567-023-02307-w
Transport measurements of the metallic kagome spin ice HoAgGe show that it has an emergent discrete symmetry that is not apparent from measurements of its magnetization.
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Interacting loop models explain the flows of active fluids in hydraulic networks
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02315-w
Predicting the complex flows that emerge in active fluid networks remains a challenge. A combination of experiments and theory was used to determine the hydraulic laws of active fluids. Analogies with frustrated magnetism and loop models explain the emergent flow patterns that result when active fluids explore pipe networks.
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Friction pulls cells into shape
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02304-z
Cells actively rearrange their cytoplasmic machinery to perform diverse functions. Now, friction forces generated between cytoplasmic components provide a physical basis for cell shape change.
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Pathway to cool hot molecules
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02359-y
A promising pathway towards the laser cooling of a molecule containing a radioactive atom has been identified. The unique structure of such a molecule means that it can act as a magnifying lens to probe fundamental physics.
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Precision spectroscopy and laser-cooling scheme of a radium-containing molecule
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02296-w
Measurements of the rovibronic structure of radium monofluoride molecules allow the identification of a laser cooling scheme. This will enable precise tests of fundamental physics, such as searches for parity or time-reversal symmetry violation.
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Active hydraulics laws from frustration principles
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02301-2
Experiments with active colloidal fluids in large-scale hydraulic networks reveal a connection between emergent flows and dynamical spin-ice patterns.
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Friction forces determine cytoplasmic reorganization and shape changes of ascidian oocytes upon fertilization
Nature Physics, Published online: 09 January 2024; doi:10.1038/s41567-023-02302-1
Friction forces at the interface between tissues play a key role in tissue morphogenesis. Now friction at the cellular scale is shown to influence cell shape and cell rearrangements.
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