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1 Superconductivity and strong correlations in moiré flat bands 2020-05-20             

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Nature Physics, Published online: 19 May 2020; doi:10.1038/s41567-020-0906-9

The identification of superconductivity and strong interactions in twisted bilayer 2D materials prompted many questions about the interplay of these phenomena. This Perspective presents the status of the field and the urgent issues for future study.

2 Direct measurement of the intrinsic electric dipole moment in pear-shaped thorium-228 2020-05-19             

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Nature Physics, Published online: 18 May 2020; doi:10.1038/s41567-020-0899-4

The intrinsic dipole moment of 228Th is reported, from which the degree of the nucleus’s octupole deformation is estimated, suggesting that 229Th and 229Pa may be suitable candidates for the search for a permanent atomic electric dipole moment.

3 Interference of chiral Andreev edge states 2020-05-19             

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Nature Physics, Published online: 18 May 2020; doi:10.1038/s41567-020-0898-5

The interface between a quantum Hall state and a superconductor hosts topological modes. Here, interference between two such modes turns an electron into either a hole or an electron depending on the phase difference along the interference path.

4 A quantum memory at telecom wavelengths 2020-05-19             

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Nature Physics, Published online: 18 May 2020; doi:10.1038/s41567-020-0891-z

By exploiting the long-lived phonon modes in nanoscale mechanical resonators, a quantum memory that operates around the standard telecom wavelength of 1,550 nm is realized on a silicon platform.

5 Strong photon coupling to the quadrupole moment of an electron in a solid-state qubit 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0862-4

Coupling of the quadrupole moment of an electron in a triple quantum dot to photons has been predicted to be a good platform for reducing the effect of charge noise on the decoherence time of a qubit. Here, the authors create such a coupling.

6 Superconductivity with broken time-reversal symmetry inside a superconducting s-wave state 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0886-9

An exotic s + is multiband superconducting state manifests in a doped pnictide superconductor when a second band moves below the Fermi surface. This creates an internal magnetic field, breaking time-reversal symmetry.

7 Probing molecular environment through photoemission delays 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0887-8

Ionization delays from ethyl iodide around a giant dipole resonance are measured by attosecond streaking spectroscopy. Using theoretical knowledge of the iodine atom as a reference, the contribution of the functional ethyl group can be obtained.

8 Towards satellite-based quantum-secure time transfer 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0892-y

Transmitting the time signal and generating the secure key with the same carrier photon improves the security of a satellite-based quantum-secure time transfer protocol, which uses two-way quantum key distribution.

9 Non-Hermitian linear response theory 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0889-6

Generalization of linear response theory to the non-Hermitian case turns dissipation into a new tool for detecting equilibrium phases. The prediction from this theory remarkably agrees with a recent cold atom experiment.

10 Mechanochemical symmetry breaking during morphogenesis of lateral-line sensory organs 2020-05-12             

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Nature Physics, Published online: 11 May 2020; doi:10.1038/s41567-020-0894-9

Symmetry breaking is essential for polarization of cells and generation of left–right body asymmetry. Here the authors investigate the arrangement of hair cells in zebrafish and show that mirror-symmetric patterns arise from a combination of biochemical and mechanical symmetry-breaking events.

 
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