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Policy Split: Incentivizing Dual-Mode Exploration in LLM Reinforcement with Dual-Mode Entropy Regularization
arXiv:2604.11510v2 Announce Type: replace Abstract: To encourage diverse exploration in reinforcement learning (RL) for large language models (LLMs) without compromising accuracy, we propose Policy Split, a novel paradigm that bifurcates the policy into normal and high-entropy modes with a high-entropy prompt. While sharing model parameters, the two modes undergo collaborative dual-mode entropy regularization tailored to distinct objectives. Specifically, the normal mode optimizes for task...
Disentangling spanwise asymmetries in unsteady wing wakes: global mode sensitivity and spatio-temporal harmonic resolvent analyses
arXiv:2606.00859v1 Announce Type: new Abstract: We investigate the emergence of long-time spanwise asymmetries in an unsteady wake downstream of a finite-span wing by disentangling flow asymmetries into symmetric and anti-symmetric components using global mode (structural) sensitivity and spatio-temporal harmonic resolvent analysis. The global mode sensitivity analysis shows that asymmetric modes emerge when symmetric and anti-symmetric eigenmodes appear as pairs and exhibit high levels of...
Microsoft's Xbox mode starts making its way to Windows 11 PCs
Microsoft's Xbox mode starts making its way to Windows 11 PCs Microsoft has started rolling out Xbox mode to Windows 11 devices, including laptops, desktop PCs and tablets, just like it promised in March. The mode, which debuted on the Asus ROG Xbox Ally X handheld, brings a console-like full screen Xbox experience to Windows. It's a controller-optimized interface that puts a focus on an aggregated library, which allows you to easily browse and launch your collection of games, including ones...
OpenAI rolls out a Lockdown Mode for extra protection against prompt injection attacks
OpenAI rolls out a Lockdown Mode for extra protection against prompt injection attacks The company says most users don't need to use the feature. OpenAI has begun rolling out Lockdown Mode, an optional security setting designed to offer users advanced protection from prompt injection attacks. For the unfamiliar, prompt injection is a form of social engineering that is specific to conversational chatbots.
Nonlinear oscillations of the amplitude of energetic-particle induced geodesic acoustic modes
arXiv:2606.09561v1 Announce Type: new Abstract: Energetic particle induced geodesic acoustic modes (EGAMs) are axisymmetric perturbations of the radial electric field in tokamak plasmas. They are driven unstable by the phase space nonuniformity of a population of energetic particles (EP). In this paper, the nonlinear oscillation in the amplitude of the energetic-particle induced geodesic acoustic modes is studied by means of the gyrokinetic particle-in-cell code ORB5.
Spurs go into attack mode to top Knicks in Game 3
Spurs go into attack mode to top Knicks in Game 3 NEW YORK, June 9 : San Antonio Spurs coach Mitch Johnson said his team went into attack mode in Game 3 of the NBA Finals at Madison Square Garden on Monday as they beat the Knicks 115-111 to trim New York's lead to 2-1 in the best-of-seven series. The game felt like a must-win for San Antonio, who dropped the first two at home and faced a hostile crowd in New York, where Knicks fans emptied out their wallets for tickets to their first home...
YouTube's picture-in-picture mode is rolling out to all users worldwide
YouTube's picture-in-picture mode is rolling out to all users worldwide YouTube's picture-in-picture mode for Android and iOS is now making its way to all users around the world, including those who aren't paying for a Premium subscription. Team YouTube says the feature will pop up in more and more users' accounts over the coming months, so it could take some time to reach most people's accounts. But once it arrives for them, they'll be able to shrink the YouTube video they're playing and...
Dual-Mode Wireless Devices for Adaptive Pull and Push-Based Communication
arXiv:2507.23421v2 Announce Type: replace Abstract: This paper introduces a dual-mode communication framework for wireless devices that integrates query-driven (pull) and event-driven (push) transmissions within a unified time-frame structure. Devices typically respond to information requests in pull mode, but if an anomaly is detected, they preempt the regular response to report the critical condition. Additionally, push-based communication is used to proactively send critical data without...
Quantum-limited estimation of atmospheric turbulence via spatial mode decomposition
Quantum Physics [Submitted on 4 Jun 2026] Title:Quantum-limited estimation of atmospheric turbulence via spatial mode decomposition View PDF HTML (experimental)Abstract:We establish the ultimate precision limit for estimating the optical spatial coherence radius (Fried parameter) within a quantum metrological framework. In the weak field regime, we show that spatial-mode decomposition -- originally introduced for superresolution imaging -- enables substantially more precise estimation than...
Observation of spectral mode splitting in a pump-enhanced ring cavity for mid-infrared generation
arXiv:2606.05598v1 Announce Type: new Abstract: We report on experimental and theoretical investigation of mode-splitting dynamics in a ring cavity under the perturbation of fractional Bragg reflection from a periodically-poled nonlinear crystal. Counterintuitively, pronounced mode splitting in the spectral domain could been observed even with a tiny intensity reflection of 0.0003. The breaking of running-wave operation in the ring-cavity configuration resulted in comparable circulating...