Preprint: Na3Bi surface terminations linked to different Fermi-arc patterns
A two-structure calculation finds arcs on both surfaces in one model, but an arc on one surface and closed loops on the other in another.
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2,451 results
2201–2220
Preprint finds video object removers can erase objects but leave shadows and reflections
A 180-sequence benchmark and a human-validated scoring system suggest local pixel metrics can miss physical traces left behind in edited videos.
Preprint finds language models can favor the wrong evidence
In a controlled synthetic benchmark, models were pulled toward misleading forecasts, prompt order and other cues when sources disagreed.
Preprint review finds no exact replications among 24 usable security and privacy papers
Across 13 selected venues, most identified replications changed more than one part of a study; only about half explicitly encouraged replication.
Preprint: Higher helium-ion doses linked to lower YBCO junction current
In three selected weak links, a diffusive SNS model fit the temperature response, but its fitted energy scale did not explain the full fall in the current–resistance product.
Preprint maps how shaped laser fields could steer quantum ‘cat’ states
Model calculations find different phase-space paths and geometric phases as polarization, spatial mode and relative phase are varied; the needed conditional measurement remains undeveloped.
Preprint: New controller reports lower error in a simulated watershed
A two-stage design came with a conditional performance guarantee and showed substantially closer tracking than optimized static feedback in one numerical test.
Preprint tests location-aware rules to explain extreme-weather AI
On wildfire, tropical-cyclone and atmospheric-river data, the rules matched internal model features at about 93% and 85% accuracy.
Preprint reports privacy-preserving cell analysis close to standard accuracy
A three-party secure-computing system came close to CellCnn on small CMV/NK and AML benchmarks, but its protections depend on a non-colluding, honest-majority setup.
Preprint finds volunteers took longer with virtual-reality graph than slides
A controlled comparison found no significant advantage for the immersive system on errors, recall, confidence, usability or reported workload.
Preprint puts a ceiling on worst-case safety risks in uncertain systems
A mathematical framework uses summary information about a system’s starting state to bound the chance of entering an unsafe region over a fixed time horizon.
Preprint reports Selmer-group bounds persist near a reference extension
A theoretical study finds conditional local stability for key Iwasawa invariants, while its p-adic L-function result depends on the cyclotomic Main Conjecture.
Preprint reports stronger reward steering for an AI language model
Nested sampling methods recorded higher reported toxicity rates and lower perplexity than listed baselines, but the test used one model and automated proxy measures.
Preprint reports lower error and backlog for task-aware UAV model in simulations
RMWorld recorded lower scores than named baselines in a 100-trial formula-channel test and a 30-seed severe-load comparison, but used more offline computation.
Preprint: Vision Transformer features mostly move toward earlier layers
A descriptive analysis of ViT-Tiny training found rare movement toward deeper layers and earlier stabilization in the network’s deeper sections.
Preprint links pattern complexity to entanglement in an SU(3) model
A computational study found that one measure tracked half-system entanglement and marked three mean-field phase boundaries, while finer signals depended on window shape.
Preprint models 99.7% single-run success for a 200-photon state
The theoretical scheme uses quantum amplitude amplification to target large fixed-photon states, but no laboratory result is reported.
Preprint Traces Minkowski’s Geometric Route to Lorentz Contraction
An archival reading places one manuscript between January 22 and April 5 and suggests it was likely being prepared for a Ferienkurs lecture, while leaving its exact setting uncertain.
Preprint reports no vacuum drag in a relativistic detector model
A fully relativistic classical calculation finds no spontaneous velocity-dependent drag during uniform motion, while a nonrelativistic version produces terms the authors interpret as artifacts.
Preprint models terahertz wavefronts shaped by a moving laser focus
Simulations suggest that changing the focus velocity could produce parabolic or conical near-field patterns, but no experiment is reported.