5 papers
Graph-Reweighted Behavior Cloning with Human Interventions for Precise Robotic Manipulation
Xiaoman Li, Zhiqiang Yang, Jiayu Hu +6
Long-horizon precise manipulation produces mixed-quality data for post-training vision-language-action (VLA) models: even successful demonstrations and intervention-assisted rollou…
Fast Population Leakage in Astronomical Masers: Maser Amplification and Transient Superradiance
Vahid Anari, Toktam Rashidi, Fereshteh Rajabi
We use a -type three-level Maxwell--Bloch model to test whether an inverted molecular transition in an astronomical maser source can produce maser amplification or superradiance…
A Unified Maxwell-Bloch Framework for Multi-periodic 6.7 GHz Methanol Flaring in G9.62+0.20E
T. Rashidi, V. Anari, O. Powles +4
We analyze a decade of 6.7 GHz methanol monitoring data in G9.62+0.20E, confirming the known periodicities of p1 = 241.3 +/- 2.3 d and p2 = 52.5 +/- 0.3 d, and identifying three ne…
Quantum coherence and the invisible Universe: Subradiance as a dark matter mechanism
Martin Houde, Fereshteh Rajabi, Lamies Sati +1
The origin of dark matter in galactic halos, one of the deepest unsolved problems in astrophysics, may find an unexpected contribution from the quantum mechanics of ordinary atomic…
Superradiance and Periodic 6.7 GHz Methanol Flaring in G22.356+0.066
T. Rashidi, V. Anari, A. Bartkiewicz +3
We present a comprehensive analysis of the periodic flares observed in the 6.7 GHz methanol transition in G22.356+0.066, utilizing the Maxwell-Bloch equations (MBEs) as a framework…