Confinement, deconfinement, and bound states in the spin-$1$ and spin-$3/2$ generalizations of the Majumdar–Ghosh chain

Posted by klaurent Delft

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Aman Sharma, Aman Sharma, , , | Summary: We investigate the nature of low-energy excitations in a spin chain with antiferrmomagnetic nearest-neighbor $J_1$, next-nearest-neighbor $J_2$, and three-site $J_3$ interactions using the time-dependent density matrix renormalization group and the single mode approximation techniques. In the absence of the […]


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GUIDe: Generative and Uncertainty-Informed Inverse Design for On-Demand Nonlinear Functional Responses

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Haoxuan Dylan Mu, Haoxuan Dylan Mu, , , | Summary: Inverse design problems are pervasive in engineering, particularly when dealing with nonlinear system responses, such as in mechanical behavior or spectral analysis. The inherent intractability, non-existence, or non-uniqueness of their solutions, and the need for swift exploration […]


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Fishing for Answers: Exploring One-shot vs. Iterative Retrieval Strategies for Retrieval Augmented Generation

Posted by klaurent UCAS

Kavli Affiliate: Gang Su | First 5 Authors: Huifeng Lin, Huifeng Lin, , , | Summary: Retrieval-Augmented Generation (RAG) based on Large Language Models (LLMs) is a powerful solution to understand and query the industry’s closed-source documents. However, basic RAG often struggles with complex QA tasks in legal and regulatory domains, particularly when dealing with […]


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Optomechanical method for characterizing thermal transport across van der Waals interfaces

Posted by klaurent Delft

Kavli Affiliate: Herre S. J. Van Der Zant | First 5 Authors: Hanqing Liu, Hanqing Liu, , , | Summary: For the development of nanoscale electronics and photonics using atomically thin two-dimensional (2D) materials, it is important to realize van der Waals (vdW) interfaces with low thermal resistance, to minimize performance reduction caused by heat […]


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GEMINI: The First Underground Testbed for Seismic Isolation and Interplatform Control in Next-Generation Gravitational-Wave Detectors

Posted by klaurent Stanford

Kavli Affiliate: Brian Lantz | First 5 Authors: Tomislav Andric, Tomislav Andric, , , | Summary: GEMINI is an underground research and development facility dedicated to advancing seismic isolation and control technologies for future gravitational-wave observatories, including the Einstein Telescope (ET) and the Lunar Gravitational-Wave Antenna (LGWA). This paper presents the technical design and theoretical […]


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On the connection between nitrogen-enhanced field stars and the Galactic globular clusters

Posted by klaurent Chicago

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Sarah G. Kane, Sarah G. Kane, , , | Summary: As sites of some of the most efficient star formation in the Universe, globular clusters (GCs) have long been hypothesized to be the building blocks of young galaxies. Within the Milky Way, our best tracers of the […]


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A carbon-rich atmosphere on a windy pulsar planet

Posted by klaurent Stanford

Kavli Affiliate: Roger W. Romani | First 5 Authors: Michael Zhang, Michael Zhang, , , | Summary: A handful of enigmatic Jupiter-mass objects have been discovered orbiting pulsars. One such object, PSR J2322-2650b, uniquely resembles a hot Jupiter exoplanet due to its minimum density of 1.8 g/cm^3 and its ~1900 K equilibrium temperature. We use […]


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Optical Fiber-Waveguide Hybrid Architecture for Mid-Infrared Ring Lasers

Posted by klaurent UCAS

Kavli Affiliate: Long Zhang | First 5 Authors: Tinghui An, Tinghui An, , , | Summary: We report a mid-infrared ring laser via fiber-to-waveguide hybrid integration enabled by directional couplers fabricated in fluoride glasses. Directional couplers were inscribed into fluoride glass using femtosecond laser direct writing, forming low-loss waveguides with a high positive refractive index […]


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Role of Fe intercalation on the electronic correlation in resistively switchable antiferromagnet Fe$_x$NbS$_2$

Posted by klaurent Berkeley

Kavli Affiliate: Jeffrey B. Neaton | First 5 Authors: Wenxin Li, Wenxin Li, , , | Summary: Among the family of intercalated transition-metal dichalcogenides (TMDs), Fe$_x$NbS$_2$ is found to possess unique current-induced resistive switching behaviors, tunable antiferromagnetic states, and a commensurate charge order, all of which are tied to a critical Fe doping of $x_c$ […]


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Deconfined Quantum Critical Point in Quantum Hall Bilayers

Posted by klaurent UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Guangyu Yu, Guangyu Yu, , , | Summary: Deconfined quantum critical points (DQCPs) represent an unconventional class of quantum criticality beyond the Landau-Ginzburg-Wilson-Fisher paradigm. Nevertheless, both their theoretical identification and experimental realization remain challenging. Here we report compelling evidence of a DQCP in quantum Hall bilayers with […]


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