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Phonons are quanta of the vibrations of the lattice in solids. They can carry angular momentum and allow an emergent chirality. This Perspective defines various types of chiral phonon and classifies the previously observed manifestations of them.
Higher-order interactions reveal new aspects of the interplay between topology and dynamics in complex systems. This Perspective describes the emerging field of higher-order topological dynamics and discusses the open research questions in the area.
Free-electron quantum optics is an emerging field that requires a quantum-mechanical description of both the electronic and the optical contributions. This Perspective summarizes recent developments and discusses challenges and opportunities.
After 30 years of extensive research, the nature of the unconventional superconductivity in Sr2RuO4 is still not fully understood. This Perspective summarizes the controversies surrounding this and discusses future research.
Optical near-field microscopy has facilitated our understanding of nanophotonics. This Perspective explores the opportunities that near-field studies of terahertz fields provide for ultrafast phase transitions in condensed matter systems.
Although topological photonics has been an active field of research for some time, most studies still focus on the linear optical regime. This Perspective summarizes recent investigations into the nonlinear properties of discrete topological photonic systems.
Encouraging students to take ownership of their learning can improve their outcomes. This Perspective discusses ways to achieve this in the context of physics education and how digital technology can help Gen Z students in particular.
Quantum computers promise to efficiently predict the structure and behaviour of molecules. This Perspective explores how this could overcome existing challenges in computational drug discovery.
Majorana zero modes are emergent excitations in topological superconductors. This Perspective introduces the physics of these modes, recaps the recent history of the experimental search for them and discusses the future prognosis for success.
Recent experiments utilizing strain have shed light on the role of electronic nematicity in determining the properties of unconventional superconductors. This Perspective reviews these developments and discusses open questions.
Multiple scattering of light in complex and disordered media scrambles optical information. This Perspective showcases how this often detrimental physical mixing can be exploited to extract and process information for optical imaging and computing.
It is not immediately obvious whether photons retain the information they carry when they traverse a disordered or multimodal medium. This Perspective discusses the extent to which the quantum properties of light can be preserved and controlled.
High-resolution imaging methods have been instrumental in advancing our understanding of the structure of materials. To move microscopy and tomography methods forwards, approaches to reassess macroscopic concepts such as symmetry are needed.
Tokamak plasmas are prone to sudden collapses that terminate the nuclear fusion reactions. This perspective discusses the prediction of these so-called disruptions with artificial intelligence techniques.
Drawing on notions from non-equilibrium physics, an interdisciplinary team of economists and scientists describe a framework for understanding the factors that underpin economic resilience, and identify the basic tools for implementing it.
Superconductivity and ordered states formed by interactions—both of which could be unconventional—have recently been observed in a family of kagome materials.
The interaction between light and the crystal lattice of a quantum material can modify its properties. Utilizing nonlinear interactions allows this to be done in a controlled way to design specific non-equilibrium functionalities.
Network representations of complex systems are limited to pairwise interactions, but real-world systems often involve higher-order interactions. This Perspective looks at the new physics emerging from attempts to characterize these interactions.
The interplay of topological properties and non-Hermitian symmetry breaking has been implemented for a range of classical-wave systems. Recent advances, challenges and opportunities are reviewed across the different physical platforms.
