Nature Physics
Second-scale rotational coherence and dipolar interactions in a gas of ultracold polar molecules
Nature Physics, Published online: 17 January 2024; doi:10.1038/s41567-023-02328-5
Coherence between rotational states of polar molecules has previously been limited by light shifts in optical traps. A magic-wavelength trap is able to maximize the coherence time and enables the observation of tunable dipolar interactions.Diversity of information pathways drives sparsity in real-world networks
Nature Physics, Published online: 17 January 2024; doi:10.1038/s41567-023-02330-x
Topological features such as modularity and small-worldness are common in real-world networks. The emergence of such features may be driven by a trade-off between information exchange and response diversity that resembles thermodynamic efficiency.A new way to use old codes
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02369-w
Scalable quantum computers require quantum error-correcting codes that can robustly store information. Exploiting the structure of well-known classical codes may help create more efficient approaches to quantum error correction.Squeeze it tight
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02355-2
Quantum technologies change our notion of measurement. Chenyu Wang elaborates on how quantum squeezing enhances the precision of gravitational-wave interferometers.Twenty years of 2D materials
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02381-0
Two-dimensional crystals have revolutionized fundamental research across a staggering range of disciplines. We take stock of the progress gained after twenty years of work.Never write off writing
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02356-1
Never write off writingA tiny escape
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02373-0
A tiny escapeFerroelectric and spontaneous quantum Hall states in intrinsic rhombohedral trilayer graphene
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02327-6
Bilayer graphene is known to host states where interactions dominate the electronic behaviour. Now, transport measurements show that this is also true for trilayer graphene and give evidence for ferroelectric states and states with high Chern number.Programmable Heisenberg interactions between Floquet qubits
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02326-7
External driving of qubits can exploit their nonlinearity to generate different forms of interqubit interactions, broadening the capabilities of the platform.Time-Efficient Constant-Space-Overhead Fault-Tolerant Quantum Computation
Nature Physics, Published online: 16 January 2024; doi:10.1038/s41567-023-02325-8
Large quantum computers will require error correcting codes, but most proposals have prohibitive requirements for overheads in the number of qubits, processing time or both. A way to combine smaller codes now gives a much more efficient protocol.Parallel quantum control meets optical atomic clocks
Nature Physics, Published online: 15 January 2024; doi:10.1038/s41567-023-02343-6
Optical atomic clocks are extremely accurate sensors despite the poor use of their resources. A parallel quantum control approach might help to optimize the resources of optical atomic clocks, which could lead to an exponential improvement in their performance.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.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.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.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.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.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.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.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.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.Pages
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