All Disciplines – Page 866 – Kavli Institute Pre-Print Publications

Nanomechanical probing and strain tuning of the Curie temperature in suspended Cr$_2$Ge$_2$Te$_6$ heterostructures

Posted by klaurent April 19, 2021Delft

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Makars Šiškins, Samer Kurdi, Martin Lee, Benjamin J. M. Slotboom, Wenyu Xing | Summary: Two-dimensional (2D) magnetic materials with strong magnetostriction are interesting systems for strain-tuning the magnetization, enabling potential for realizing spintronic and nanomagnetic devices. Realizing this potential requires understanding of the […]

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Validation of the HERA Phase I Epoch of Reionization 21 cm Power Spectrum Software Pipeline

Posted by klaurent April 19, 2021MIT

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: James E. Aguirre, Steven G. Murray, Robert Pascua, Zachary E. Martinot, Jacob Burba | Summary: We describe the validation of the HERA Phase I software pipeline by a series of modular tests, building up to an end-to-end simulation. The philosophy of this approach is to validate […]

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BM-NAS: Bilevel Multimodal Neural Architecture Search

Posted by klaurent April 19, 2021Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Yihang Yin, Siyu Huang, Xiang Zhang, , | Summary: Deep neural networks (DNNs) have shown superior performances on various multimodal learning problems. However, it often requires huge efforts to adapt DNNs to individual multimodal tasks by manually engineering unimodal features and designing multimodal feature fusion strategies. This […]

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Leveraging Randomized Compiling for the QITE Algorithm

Posted by klaurent April 18, 2021Berkeley

Kavli Affiliate: Irfan Siddiqi | First 5 Authors: Jean-Loup Ville, Alexis Morvan, Akel Hashim, Ravi K. Naik, Marie Lu | Summary: The success of the current generation of Noisy Intermediate-Scale Quantum (NISQ) hardware shows that quantum hardware may be able to tackle complex problems even without error correction. One outstanding issue is that of coherent […]

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Cetacean Translation Initiative: a roadmap to deciphering the communication of sperm whales

Posted by dbos April 17, 2021Harvard

Kavli Affiliate: Robert J. Wood | First 5 Authors: Jacob Andreas, Gašper Beguš, Michael M. Bronstein, Roee Diamant, Denley Delaney | Summary: The past decade has witnessed a groundbreaking rise of machine learning for human language analysis, with current methods capable of automatically accurately recovering various aspects of syntax and semantics – including sentence structure […]

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Electronic instabilities of kagome metals: saddle points and Landau theory

Posted by klaurent April 17, 2021UCSB

Kavli Affiliate: Leon Balents | First 5 Authors: Takamori Park, Mengxing Ye, Leon Balents, , | Summary: We study electronic instabilities of a kagome metal with a Fermi energy close to saddle points at the hexagonal Brillouin zone face centers. Using parquet renormalization group, we determine the leading and subleading instabilities, finding superconducting, charge, orbital […]

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High-performance lasers for fully integrated silicon nitride photonics

Posted by klaurent April 17, 2021Caltech

Kavli Affiliate: Kerry J. Vahala | First 5 Authors: Chao Xiang, Joel Guo, Warren Jin, Jonathan Peters, Weiqiang Xie | Summary: Silicon nitride (SiN) waveguides with ultra-low optical loss enable integrated photonic applications including low noise, narrow linewidth lasers, chip-scale nonlinear photonics, and microwave photonics. Lasers are key components to SiN photonic integrated circuits (PICs), […]

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Composition of Terrestrial Exoplanet Atmospheres from Meteorite Outgassing Experiments

Posted by klaurent April 16, 2021Stanford

Kavli Affiliate: Laura Schaefer | First 5 Authors: Maggie A. Thompson, Myriam Telus, Laura Schaefer, Jonathan J. Fortney, Toyanath Joshi | Summary: Terrestrial exoplanets likely form initial atmospheres through outgassing during and after accretion, although there is currently no first-principles understanding of how to connect a planet’s bulk composition to its early atmospheric properties. Important […]

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Intense optical parametric amplification in dispersion engineered nanophotonic lithium niobate waveguides

Posted by klaurent April 16, 2021Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Luis Ledezma, Ryoto Sekine, Qiushi Guo, Rajveer Nehra, Saman Jahani | Summary: Strong amplification in integrated photonics is one of the most desired optical functionalities for computing, communications, sensing, and quantum information processing. Semiconductor gain and cubic nonlinearities, such as four-wave mixing and stimulated Raman and Brillouin […]

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Efficient Octave-Spanning Parametric Down-Conversion at the Picojoule Level

Posted by klaurent April 16, 2021Caltech

Kavli Affiliate: Alireza Marandi | First 5 Authors: Marc Jankowski, Nayara Jornod, Carsten Langrock, Boris Desiatov, Alireza Marandi | Summary: The generation and amplification of photons by parametric down-conversion in quadratic nonlinear media is used as a source of entangled photons, squeezed light, and short optical pulses at difficult to access wavelengths. Optical nonlinearities are […]

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