6 papers
Physics-Informed Graph-Neural Decoding of the Surface Code: the Logical Signal as an Exact Topological Pairing
P. E. Trevisanutto, S. Dhanpal, S. Basak +2
We develop a physics-informed graph neural network (GNN) decoder for the surface code that solves a discrete Poisson equation on the syndrome graph, with the syndrome as the charge…
Period spacings and global seismic parameters for K2 red giants using deep learning
Nipun Ghanghas, Siddharth Dhanpal, Shravan Hanasoge +2
Gravity-mode period spacings (DPi_1) of red giants probe the stellar core directly, constraining its structure, mass and evolutionary state. Their measurement requires resolving na…
Potential of Gaia XP Spectra in Red Giant Star Asteroseismology: A Deep-Learning Approach
Rajarshi Barman, Shatanik Bhattacharya, Shravan M. Hanasoge +1
Red giants are tracers of stellar evolution & Galactic structure & their asteroseismic properties, particularly large frequency separation, frequency of maximum oscillation power &…
Anomalously fast core and envelope rotation in red giants
Siddharth Dhanpal, Othman Benomar, Shravan Hanasoge +1
Red giants undergo dramatic and complex structural transformations as they evolve. Angular momentum is transported between the core and envelope during this epoch, a poorly underst…
Seismic constraints on the spin evolution of slowly rotating young intermediate-mass stars
K. H. Singh, S. K. Panda, S. M. Hanasoge +1
Scuti stars are hot, rapid rotators and are a poorly understood class of pulsators. Asteroseismology provides the only means with which to probe their interior dynamics. Howev…
Quadratic frequency dispersion in the oscillations of intermediate-mass stars
Subrata Kumar Panda, Shravan Hanasoge, Siddharth Dhanpal +1
Asteroseismology, the study of stellar vibration, has met with great success, shedding light on stellar interior structure, rotation, and magnetism. Prominently known as Scuti…