Emergent order in a continuous state adaptive network model of living systems

Kavli Affiliate: Timon Idema | First 5 Authors: Carsten T. van de Kamp, George Dadunashvili, Johan L. A. Dubbeldam, Timon Idema, | Summary: Order can spontaneously emerge from seemingly noisy interactions between biological agents, like a flock of birds changing their direction of flight in unison, without a leader or an external cue. We are […]


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Electrically tunable and reversible magnetoelectric coupling in strained bilayer graphene

Kavli Affiliate: Katja C. Nowack | First 5 Authors: Brian T. Schaefer, Katja C. Nowack, , , | Summary: The valleys in hexagonal two-dimensional systems with broken inversion symmetry carry an intrinsic orbital magnetic moment. Despite this, such systems possess zero net magnetization unless additional symmetries are broken, since the contributions from both valleys cancel. […]


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Impact of Semiconductor Band Tails and Band Filling on Photovoltaic Efficiency Limits

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Joeson Wong, Stefan T. Omelchenko, Harry A. Atwater, , | Summary: The theoretical maximum efficiency of a solar cell is typically characterized by a detailed balance of optical absorption and emission for a semiconductor in the limit of unity radiative efficiency and an ideal step-function response […]


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Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Joeson Wong, Artur R. Davoyan, Bolin Liao, Andrey Krayev, Kiyoung Jo | Summary: Van der Waals materials exhibit naturally passivated surfaces and can form versatile heterostructures, enabling observation of carrier transport mechanisms not seen in three-dimensional materials. Here we report observation of a "band bending junction", […]


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OPTIMADE, an API for exchanging materials data

Kavli Affiliate: Kristin A. Persson | First 5 Authors: Casper W. Andersen, Rickard Armiento, Evgeny Blokhin, Gareth J. Conduit, Shyam Dwaraknath | Summary: The Open Databases Integration for Materials Design (OPTIMADE) consortium has designed a universal application programming interface (API) to make materials databases accessible and interoperable. We outline the first stable release of the […]


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Scalable Hamiltonian learning for large-scale out-of-equilibrium quantum dynamics

Kavli Affiliate: Eliska Greplova | First 5 Authors: Agnes Valenti, Guliuxin Jin, Julian LĂ©onard, Sebastian D. Huber, Eliska Greplova | Summary: Large-scale quantum devices provide insights beyond the reach of classical simulations. However, for a reliable and verifiable quantum simulation, the building blocks of the quantum device require exquisite benchmarking. This benchmarking of large scale […]


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Quantum Oscillations and the Quasiparticle Properties of Thin Film Sr$_2$RuO$_4$

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Yawen Fang, Hari P. Nair, Ludi Miao, Berit Goodge, Nathaniel J. Schreiber | Summary: We measure the Shubnikov-de Haas effect in thin-film Sr$_2$RuO$_4$ grown on an (LaAlO$_3$)$_{0.29}$-(SrAl$_{1/2}$Ta$_{1/2}$O$_3$)$_{0.71}$ (LSAT) substrate. We detect all three known Fermi surfaces and extract the Fermi surface volumes, cyclotron effective masses, and […]


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Mutual Information Scaling for Tensor Network Machine Learning

Kavli Affiliate: Birgitta Whaley | First 5 Authors: Ian Convy, William Huggins, Haoran Liao, K. Birgitta Whaley, | Summary: Tensor networks have emerged as promising tools for machine learning, inspired by their widespread use as variational ansatze in quantum many-body physics. It is well known that the success of a given tensor network ansatz depends […]


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Principles of Low Dissipation Computing from a Stochastic Circuit Model

Kavli Affiliate: David T. Limmer | First 5 Authors: Chloe Ya Gao, David T. Limmer, , , | Summary: We introduce a thermodynamically consistent, minimal stochastic model for complementary logic gates built with field-effect transistors. We characterize the performance of such gates with tools from information theory and study the interplay between accuracy, speed, and […]


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