Research briefing
Track frontier research without the noise.
Browse recent and foundational papers by research area, generate concise briefs, and open source documents in a focused reader.
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Space & PhysicsarXiv2026-07-02Preprint (40)
OrbitQuant: Data-Agnostic Quantization for Image and Video Diffusion Transformers
Donghyun Lee, Jitesh Chavan, Duy Nguyen, Sam Huang, Liming Jiang et al.
Diffusion transformers (DiTs) achieve state of the art image and video generation, but their multi step sampling and growing parameter count make inference expensive. Post training quantization (PTQ) is the natural remedy, yet DiT activations shift across timesteps, prompts, and guidance branches, forcing prior methods to re fit calibration data for every new checkpoint or modality. We present OrbitQuant, a data a...
AI & CognitionOpenAlex2026-07-23Verified (73)
Motor imagery-based brain–computer interface training for post-stroke upper limb dysfunction: systematic review and meta-analysis
Zhen Yang, Shangang Zhang, Du Wang et al.
Background Motor imagery based brain–computer Interface (MI BCI) utilises electroencephalographic signals from imagined limb movements for control commands, enabling real time interaction with external devices. Clinical trials suggest its potential for upper limb recovery post stroke. This study aims to systematically evaluate the effectiveness of MI BCI on upper limb motor function in patients with post stroke he...
AI & CognitionarXiv2026-07-23Preprint (50)
AXIS: A Growable Community-Driven Data Engine for Scalable Robot Manipulation
Mengfei Zhao, Dihong Huang, Yikai Tang et al.
Learning effective robot manipulation policies requires diverse, high quality demonstrations, yet existing data pipelines are often difficult to scale because they rely on specialized hardware, centralized operators, or fixed task suites. We present AXIS, a growable community driven data engine and benchmark for scalable robot learning, which enables browser based teleoperation for large scale demonstration collec...
Quantum TechnologyarXiv2026-07-23Skeptical (25)
An integrated all-van der Waals nanobeam laser
Aris Koulas-Simos, Pietro Metuh, Athanasios Paralikis et al.
Transition metal dichalcogenides offer a promising platform for integrated coherent light sources, yet lasing has largely relied on hybrid photonic architectures without direct quantum optical verification. Here, we demonstrate an all van der Waals (all vdW) high $β$ nanobeam laser based on a WS$ 2$/MoSe$ 2$/WS$ {2}$ heterostructure, with the MoSe$ 2$ monolayer directly integrated in the WS$ {2}$ based optical res...
Quantum TechnologyarXiv2026-07-23Skeptical (20)
Fault-tolerant quantum algorithms for simulating atomic nuclei
James Benstead, Michael Garn, Neil Gaspar et al.
To maximize the value of fault tolerant quantum computers, it is essential to develop concrete applications beyond well established domains such as chemistry and condensed matter physics. Here we construct and compile quantum algorithms to simulate the structure of atomic nuclei a topic that has received relatively little attention from the quantum computing community despite its similarities to the electronic str...
Space & PhysicsarXiv2026-07-23Preprint (55)
Neural solutions of coupled ghost and gluon Dyson--Schwinger equations in Landau gauge
Rodrigo Carmo Terin
The coupled ghost and gluon Dyson Schwinger equations (DSEs) of four dimensional Landau gauge Yang Mills (YM) theory are solved with a neural representation trained only from renormalized equation residuals. The neural and fixed point solutions agree at the percent level and remain stable under changes of initialization, network size, integration grid, and infrared boundary condition. Variations of the three gluon...
Space & PhysicsarXiv2026-07-23Skeptical (30)
ElasticTTT: Prior-Preserving Test-Time Tuning for Video Editing
Yueyi Liu, Chi Zhang, Sen Cui et al.
Test Time Tuning (TTT) on pretrained diffusion models has emerged as a powerful paradigm for video editing. However, there exists a foundational mismatch between the distribution mapping nature of generative models and the single point optimization of standard TTT. In this paper, we demonstrate that this mismatch triggers \textit{Prior Collapse}, a degenerate state where the model discards the text conditions and ...
Bio-EngineeringarXiv2026-07-23Skeptical (20)
Visual Contrastive Self-Distillation
Yijun Liang, Yunjie Tian, Yijiang Li et al.
On policy self distillation (OPSD) is promising as it removes the external teacher required by on policy distillation (OPD), yet it still needs asymmetric information between teacher and student to ensure that the self teacher provides a stronger learning signal than the student. Existing methods create this asymmetry either through privileged answers or visual evidence. We ask whether both can be removed, yieldin...
Bio-EngineeringarXiv2026-07-23Preprint (40)
GraphVid: Interactive Graph-Controllable Video Generation
Vedant Shah, Onkar Susladkar, Tushar Prakash et al.
Controllable video generation remains challenging due to the difficulty of specifying precise multi object interactions using text prompts or motion control inputs that primarily constrain pixel movement. In practice, trajectory based control often requires users to draw accurate tracks for multiple objects, which scales poorly with scene complexity and becomes ambiguous under occlusion or overlap. To enable flexi...
NanotechnologyarXiv2026-07-23Preprint (58)
Probing the nonlocality of Landau levels in GaAs quantum wells through modified Purcell factors, Lamb shifts and dipole emitted spectra
Lara Greten, Sabrina Meyer, Christina Schröder et al.
In a two dimensional electron gas, a strong perpendicular magnetic field confines electrons to quantized cyclotron orbits, giving rise to Landau levels with discrete orbit radii. Even the smallest Landau orbit, set by the magnetic length, spans tens of nanometers for fields of a few Tesla, imposing an intrinsic nonlocal response to electromagnetic excitations. From a microscopic theory of the nonlocal susceptibili...
NanotechnologyarXiv2026-07-22Verified (71)
Competing ferromagnetic and antiferromagnetic interactions in non-altermagnetic Ru$_{1-x}$Cr$_{x}$O$_{2}$
David T. Plouff, Nawsher J. Parvez, Subhash Bhatt et al.
We investigate the proposal of hole doping RuO$ {2}$ via alloying with Cr ions to induce altermagnetism. Thin film samples of Ru$ {1 x}$Cr$ {x}$O$ {2}$ ($0 \leq x \leq 0.28$) were prepared by reactive magnetron co sputtering on TiO$ {2}$ substrates, with epitaxial nature verified by X ray diffraction and composition depth profiles determined by X ray photoelectron spectroscopy combined with Ar etching. Neutron dif...
