6 papers
Extending the Feynman variational principle and analytical methods to lattice polarons
S. N. Klimin, J. Tempere, M. Houtput +6
We develop and compare several analytical approximations for the ground state and zero-temperature polaron dispersion in finite-width, nonparabolic conduction bands. The main focus…
A candidate to the long sought optical counterpart to the Rapid Burster in the bulge fossil fragment Liller 1
Cristina Pallanca, Francesco R. Ferraro, Barbara Lanzoni +6
We report on the possible identification of the optical counterpart of the Rapid Burster MXB 1730-335 in the stellar system Liller 1. The identification was performed by taking adv…
The collar of early-type galaxies -- probing evolution by focusing on the inner stellar density profile
Rongfu Liu, Alessandro Sonnenfeld, Carlo Nipoti +1
Aims: In this work we aim to investigate the late evolution of ETGs, both observationally and theoretically, by focusing on the stellar mass density profile inside a fixed aperture…
Edge-On Disk Study (EODS) II: Thermal Structure of the Flying Saucer Disk
S. Guilloteau, O. Denis-Alpizar, A. Dutrey +21
Context. The dust and gas temperature in proto-planetary disks play critical roles in determining their chemical evolution and influencing planet formation processes. Aims. We atte…
Time and frequency transfers in optical spacetime
Adrien Bourgoin, Pierre Teyssandier, Paolo Tortora +1
Solving the null geodesic equations for a ray of light is a difficult task even considering a stationary spacetime. The problem becomes even more difficult if the electromagnetic s…
Improving the Performance of Cryogenic Calorimeters with Nonlinear Multivariate Noise Cancellation Algorithms
Kenneth J. Vetter, Mattia Beretta, Chiara Capelli +11
State-of-the-art physics experiments require high-resolution, low-noise, and low-threshold detectors to achieve competitive scientific results. However, experimental environments i…