physics papers | Gist.Science

Integrated coherent LiDAR with broadband low-noise-laser-driven, multidimensionally multiplexed passive beam steering

This paper presents a hybrid integrated coherent LiDAR system that overcomes scalability bottlenecks by combining a self-injection-locked external-cavity laser with a multidimensionally multiplexed passive dispersive optical phased array to achieve a wide field of view, ultra-narrow linewidth, and high-precision ranging through co-optimized source coherence and passive spatial multiplexing.

Linjie Zhou, Siyu E, Qiqi Yuan, Yuyao Guo, Xinhang Li, Chang Li, Weihan Xu, Minhui Jin, yanyang zhou, Yu Li, Liangjun Lu (…)2026-08-18

🔬 physics

Sub-Nanometer Lithography Alignment and Zero-Entropy Thermal Cancellation via 4D Spatiotemporal Phonon Phase Resonance

This paper proposes a novel framework utilizing 4D spatiotemporal phonon phase resonance and a virtual quantum processing unit to simultaneously achieve sub-nanometer lithography alignment precision and room-temperature zero-entropy thermal cancellation, thereby overcoming fundamental physical bottlenecks in next-generation semiconductor manufacturing.

Min Ho Jung2026-08-18

🔬 physics

Highly Reconfigurable Microwave Photonic All-Pass Filters based on Optical Microcombs

This paper proposes and experimentally demonstrates a highly reconfigurable microwave photonic all-pass filter system driven by optical microcombs, which achieves sharp phase transitions, high group delays, and low loss through programmable tap coefficients without hardware changes.

David Moss2026-08-18

🔬 physics

Complex Physical Ontology from Computable Coordinate Frames and Local Helicity

This paper proposes a complex-valued extension of the Computable Coordinate System (CCS) that couples real geometric frames with a topological phase driven by local helicity density to model topology-changing events like vortex reconnection, which traditional real-valued continuum models cannot describe.

GuoJun Pan2026-08-18

🔬 physics

Superresolution imaging across scales

This paper provides the first rigorous mathematical proof that the explicit MeanShift vector can resolve Gaussian-distributed incoherent point sources beyond the Sparrow limit, a finding validated through simulations and real-world imaging data across fluorescence microscopy, astronomy, and X-ray spectroscopy.

Esley Torres2026-08-18

🔬 physics

Catalyzed Deuterium Operation in Pulsed Field-Reversed Configuration Systems: Helium-3 Recycle, Secondary Burn, and Requirements for Net Energy Gain

This paper evaluates the potential of Helium-3 recycling to significantly reduce confinement requirements for net energy gain in pulsed Field-Reversed Configuration systems, concluding that while it lowers the ideal confinement floor by a factor of 4.8 compared to single-pass secondary burn, achieving this goal remains contingent on unresolved challenges in separator retention, charged-product deposition, radiative transfer, and energy recovery.

Joseph Finberg2026-08-18

🔬 physics

Qualification Architecture for a Pulsed Field-Reversed-Configuration Deuterium Reactor: 20 T Requirements, Regulatory Envelope, and Falsification Gates

This paper establishes a comprehensive qualification architecture for a pulsed deuterium-deuterium Field-Reversed Configuration reactor targeting a 20 T external field, defining specific design parameters, energy storage scales, and a hierarchy of falsification gates to validate critical systems ranging from magnet cycling to fuel-cycle control.

Joseph Finberg2026-08-18

🔬 physics

Exact Bounds on Exponential Concentration for Block-Product Quantum Fidelity Kernels

This paper establishes exact bounds on the exponential concentration of block-product quantum fidelity kernels, demonstrating that partitioning $n$ qubits into $m$ independent $b$ -qubit blocks with maximally mixed first moments yields a second-moment concentration exponent $c$ ranging from 1 (attained by digitized encodings) to a block-size-dependent upper limit $c(b)$ approaching 2, thereby providing a rigorous framework to mitigate barren plateaus while distinguishing between shot-noise and ranking resolvability thresholds.

Mezbah Uddin Rafi2026-08-18

🔬 physics

A unified algebraic turbulence closure for channel, pipe and boundary-layer flows: sub-percent errors against DNS and experimental data with a minimal set of inputs

This paper presents a unified algebraic turbulence closure that achieves sub-percent accuracy across channel, pipe, and boundary-layer flows by systematically reconstructing a minimal model from validated classical terms and DNS-derived features, thereby demonstrating that reducing input parameters directly enhances simulation reliability without sacrificing performance.

Lucas Lima Freitag2026-08-18

🔬 physics

Microwatt 3D printing of metal nanostructures via photothermally activated Coulombic potential

The paper introduces thermoplasmonic laser printing (TPLP), a cost-effective technique that utilizes microwatt continuous-wave lasers to transduce diffusive heat into a confining Coulombic potential, enabling the high-resolution, low-roughness fabrication of 3D metal nanostructures with superior electrical conductivity that overcomes the limitations of conventional high-power laser methods.

Xiangping Li, Xianzhi Zeng, Qingshuai Yang, Jinping Su, Yucong Xie, Hongbing Zhu, Shichao Song, Yaoyu Cao, Min Gu2026-08-18

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