Imaging gate-tunable Tomonaga-Luttinger liquids in 1H-MoSe$_2$ mirror twin boundaries

Posted by Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Tiancong Zhu, Wei Ruan, Yan-Qi Wang, Hsin-Zon Tsai, Shuopei Wang | Summary: One-dimensional electron systems (1DESs) exhibit properties that are fundamentally different from higher-dimensional systems. For example, electron-electron interactions in 1DESs have been predicted to induce Tomonaga-Luttinger liquid behavior. Naturally-occurring grain boundaries in single-layer semiconducting transition […]


Continue.. Imaging gate-tunable Tomonaga-Luttinger liquids in 1H-MoSe$_2$ mirror twin boundaries

Mechanical Cloak via Data-Driven Aperiodic Metamaterial Design

Posted by Caltech

Kavli Affiliate: Chiara Daraio | First 5 Authors: Liwei Wang, Jagannadh Boddapati, Ke Liu, Ping Zhu, Chiara Daraio | Summary: Mechanical cloaks are materials engineered to manipulate the elastic response around objects to make them indistinguishable from their homogeneous surroundings. Typically, methods based on material-parameter transformations are used to design optical, thermal and electric cloaks. […]


Continue.. Mechanical Cloak via Data-Driven Aperiodic Metamaterial Design

A full spectral-timing model to map the accretion flow in black hole binaries: the low/hard state of MAXI J1820+070

Posted by Tokyo

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: Tenyo Kawamura, Magnus Axelsson, Chris Done, Tadayuki Takahashi, | Summary: The nature and geometry of the accretion flow in the low/hard state of black hole binaries is currently controversial. While most properties are generally explained in the truncated disc/hot inner flow model, the detection of a broad […]


Continue.. A full spectral-timing model to map the accretion flow in black hole binaries: the low/hard state of MAXI J1820+070

Identifying Majorana vortex modes via non-local transport

Posted by Berkeley

Kavli Affiliate: Joel E. Moore | First 5 Authors: Björn Sbierski, Max Geier, An-Ping Li, Matthew Brahlek, Robert G. Moore | Summary: The combination of two-dimensional Dirac surface states with s-wave superconductivity is expected to generate localized topological Majorana zero modes in vortex cores. Putative experimental signatures of these modes have been reported for heterostructures […]


Continue.. Identifying Majorana vortex modes via non-local transport

Constraining continuous topology optimizations to discrete solutions for photonic applications

Posted by Caltech

Kavli Affiliate: Andrei Faraon | First 5 Authors: Conner Ballew, Gregory Roberts, Tianzhe Zheng, Andrei Faraon, | Summary: Photonic topology optimization is a technique used to find the electric permittivity distribution of a device that optimizes an electromagnetic figure-of-merit. Two common techniques are used: continuous density-based optimizations that optimize a grey-scale permittivity defined over a […]


Continue.. Constraining continuous topology optimizations to discrete solutions for photonic applications

The Simplest and Most Predictive Model of Muon $g-2$ and Thermal Dark Matter

Posted by Chicago

Kavli Affiliate: Gordan Krnjaic | First 5 Authors: Ian Holst, Dan Hooper, Gordan Krnjaic, , | Summary: The long-standing $4.2 , sigma$ muon $g-2$ anomaly may be the result of a new particle species which could also couple to dark matter and mediate its annihilations in the early universe. In models where both muons and […]


Continue.. The Simplest and Most Predictive Model of Muon $g-2$ and Thermal Dark Matter

Rayleigh wave propagation in nonlinear metasurfaces

Posted by Caltech

Kavli Affiliate: Chiara Daraio | First 5 Authors: Antonio Palermo, Behrooz Yousefzadeh, Chiara Daraio, Alessandro Marzani, | Summary: We investigate the propagation of Rayleigh waves in a half-space coupled to a nonlinear metasurface. The metasurface consists of an array of nonlinear oscillators attached to the free surface of a homogeneous substrate. We describe, analytically and […]


Continue.. Rayleigh wave propagation in nonlinear metasurfaces

Quasiparticle kinetic theory for Calogero models

Posted by Berkeley

Kavli Affiliate: Joel E. Moore | First 5 Authors: Vir B. Bulchandani, Manas Kulkarni, Joel E. Moore, Xiangyu Cao, | Summary: We show that the quasiparticle kinetic theory for quantum and classical Calogero models reduces to the free-streaming Boltzmann equation. We reconcile this simple emergent behaviour with the strongly interacting character of the model by […]


Continue.. Quasiparticle kinetic theory for Calogero models