Spoof surface plasmon photonics

Author(s): Francisco J. Garcia-Vidal, Antonio I. Fernández-Domínguez, Luis Martin-Moreno, Hao Chi Zhang, Wenxuan Tang, Ruwen Peng, and Tie Jun CuiStructuring metallic surfaces allows for the support of surface electromagnetic modes at frequencies for which they would not be allowed for smooth surfaces. These modes are called “spoof surface plasmons”...

13h

Coupling of mechanical deformation and electromagnetic fields in biological cells

Author(s): Mehdi Torbati, Kosar Mozaffari, Liping Liu, and Pradeep SharmaA distinctive characteristic of the biological cell is its ability to mechanically deform to crawl or squeeze through trapped spaces. When a cell is taken apart, the structural deformation of its cellular components as biological matter can be manipulated by electrical and magnetic...

2w

Interfacial thermal resistance: Past, present, and future

Author(s): Jie Chen, Xiangfan Xu, Jun Zhou, and Baowen LiAs devices and circuits scale to ever smaller sizes and thermal management in them becomes more important, heat transport across their interfaces plays a crucial role in their development. While the study of interfacial thermal resistance goes back almost 90 years, its increasing importance has...

4w

Parameter estimation with gravitational waves

Author(s): Nelson Christensen and Renate MeyerFollowing their first detection, gravitational wave signals from astrophysical binary mergers have been collected by the LIGO-Virgo network of interferometers, inaugurating the era of gravitational wave astronomy. With a new generation of instruments, one major challenge is the development of statistical...

Apr 2022

Power functional theory for many-body dynamics

Author(s): Matthias SchmidtIn equilibrium, the unifying framework of density-functional theory provides a variational scheme to determine both the thermodynamics and correlation functions of classical systems in the presence of an external potential field. Density-functional theory has found a range of application and nowadays forms a central pillar...

Mar 2022

Complex paths around the sign problem

Author(s): Andrei Alexandru, Gökçe Başar, Paulo F. Bedaque, and Neill C. WarringtonA promising path to solving QCD is on a computer by discretizing spacetime, rewriting the QCD Lagrangian to fit in that discretization, and then taking the appropriate continuum and infinite volume limits. A problem with this method is that the calculation of certain...

Mar 2022

Collective nonlinear dynamics and self-organization in decentralized power grids

Author(s): Dirk Witthaut, Frank Hellmann, Jürgen Kurths, Stefan Kettemann, Hildegard Meyer-Ortmanns, and Marc TimmeThe rapid increase in renewable energy production facilities, domestic installations injecting energy back onto the grid, and the surge in electric vehicle adoption and associated high voltage charging stations are all placing unprecedented...

Feb 2022

Noisy intermediate-scale quantum algorithms

Author(s): Kishor Bharti, Alba Cervera-Lierta, Thi Ha Kyaw, Tobias Haug, Sumner Alperin-Lea, Abhinav Anand, Matthias Degroote, Hermanni Heimonen, Jakob S. Kottmann, Tim Menke, Wai-Keong Mok, Sukin Sim, Leong-Chuan Kwek, and Alán Aspuru-GuzikNoisy quantum computers can in principle perform reliable quantum computations, but truly scalable systems require...

Feb 2022

Semitauonic $b$-hadron decays: A lepton flavor universality laboratory

Author(s): Florian U. Bernlochner, Manuel Franco Sevilla, Dean J. Robinson, and Guy WormserWhile searches for interactions at high-energy experiments have yielded more stringent bounds on new physics, the discovery potential of indirect searches has drawn renewed attention. The standard model predicts that physical processes involving charged leptons...

Feb 2022

The proton charge radius

Author(s): H. Gao and M. VanderhaeghenThe proton is responsible for about half the mass in our personal lives. So it is perhaps surprising that little is known about how it got here or how it is bound from its fundamental quark and gluon constituents. This uncertainty is the largest source of error to extracting some fundamental constants of nature....

Jan 2022