Beyond real: Alternative unitary cluster Jastrow models for molecular electronic structure calculations on near-term quantum computers

Posted by dbos Berkeley, This Week: Nanoscience

Kavli Affiliate: Birgitta Whaley | First 5 Authors: Nikolay V. Tkachenko, Hang Ren, Wendy M. Billings, Rebecca Tomann, K. Birgitta Whaley | Summary: Near-term quantum devices require wavefunction ans"atze that are expressive while also of shallow circuit depth in order to both accurately and efficiently simulate molecular electronic structure. While unitary coupled cluster (e.g., UCCSD) […]


Continue.. Beyond real: Alternative unitary cluster Jastrow models for molecular electronic structure calculations on near-term quantum computers

Unconventional polaronic ground state in superconducting LiTi$_2$O$_4$

Posted by dbos Cornell, This Week: Nanoscience

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Zubia Hasan, Grace A. Pan, Harrison LaBollita, Austin Kaczmarek, Suk Hyun Sung | Summary: Geometrically frustrated lattices can display a range of correlated phenomena, ranging from spin frustration and charge order to dispersionless flat bands due to quantum interference. One particularly compelling family of such materials […]


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On the Learning with Augmented Class via Forests

Posted by dbos Caltech, This Week: Nanoscience

Kavli Affiliate: Wei Gao | First 5 Authors: Fan Xu, Wuyang Chen, Wei Gao, , | Summary: Decision trees and forests have achieved successes in various real applications, most working with all testing classes known in training data. In this work, we focus on learning with augmented class via forests, where an augmented class may […]


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Stacking-Selective Epitaxy of Rare-Earth Diantimonides

Posted by dbos Caltech, This Week: Nanoscience

Kavli Affiliate: Joseph Falson | First 5 Authors: Reiley Dorrian, Jinwoong Kim, Adrian Llanos, Veronica Show, Mizuki Ohno | Summary: Deterministic control of the layering configuration of two-dimensional quantum materials plays a central role in studying their emergent electronic properties. Here we demonstrate in-situ control over competing stacking configurations in thin film crystals of the […]


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PtyRAD: A High-performance and Flexible Ptychographic Reconstruction Framework with Automatic Differentiation

Posted by dbos Cornell, This Week: Nanoscience

Kavli Affiliate: David A. Muller | First 5 Authors: Chia-Hao Lee, Steven E. Zeltmann, Dasol Yoon, Desheng Ma, David A. Muller | Summary: Electron ptychography has recently achieved unprecedented resolution, offering valuable insights across diverse material systems, including in three dimensions. However, high-quality ptychographic reconstruction is computationally expensive and time consuming, requiring a significant amount […]


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Weak transcription factor clustering at binding sites can facilitate information transfer from molecular signals

Posted by dbos Delft, This Week: Nanoscience

Kavli Affiliate: Jos W. Zwanikken | First 5 Authors: Tamara Mijatović, Aimée R. Kok, Jos W. Zwanikken, Marianne Bauer, | Summary: Transcription factor concentrations provide signals to cells that allow them to regulate gene expression to make correct cell fate decisions. Calculations for noise bounds in gene regulation suggest that clustering or cooperative binding of […]


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Resonant Self-Diffraction of Femtosecond Extreme Ultraviolet Pulses in Cobalt

Posted by dbos Caltech

Kavli Affiliate: Scott K. Cushing | First 5 Authors: Alexei A. Maznev, Wonseok Lee, Scott K. Cushing, Dario De Angelis, Danny Fainozzi | Summary: Self-diffraction is a non-collinear four-wave mixing technique well-known in optics. We explore self-diffraction in the extreme ultraviolet (EUV) range, taking advantage of intense femtosecond EUV pulses produced by a free electron […]


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Differentiable NMS via Sinkhorn Matching for End-to-End Fabric Defect Detection

Posted by dbos Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Zhengyang Lu, Bingjie Lu, Weifan Wang, Feng Wang, | Summary: Fabric defect detection confronts two fundamental challenges. First, conventional non-maximum suppression disrupts gradient flow, which hinders genuine end-to-end learning. Second, acquiring pixel-level annotations at industrial scale is prohibitively costly. Addressing these limitations, we propose a differentiable NMS […]


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Compilation strategies for quantum network programs using Qoala

Posted by dbos Delft

Kavli Affiliate: Stephanie Wehner | First 5 Authors: Samuel Oslovich, Bart van der Vecht, Stephanie Wehner, , | Summary: Execution of quantum network applications requires a software stack for nodes. Recently, the first designs and demonstrations have been proposed for such software stacks, including QNodeOS and its extension, Qoala. The latter enables compilation strategies previously […]


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Inferring charge noise source locations from correlations in spin qubits

Posted by dbos Delft

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Juan S. Rojas-Arias, Akito Noiri, Jun Yoneda, Peter Stano, Takashi Nakajima | Summary: We investigate low-frequency noise in a spin-qubit device made in isotopically purified Si/Si-Ge. Observing sizable cross-correlations among energy fluctuations of different qubits, we conclude that these fluctuations are dominated by charge noise. At low […]


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