5 papers
Reply to "Comment on `Theory of Phonon-Assisted Adsorption in Graphene: Many-Body Infrared Dynamics' "
Sanghita Sengupta
Based on a new self-energy for atom-phonon interaction, preceding Comment argues about the insufficiency of the mathematical techniques within the Independent Boson Model (IBM) to…
Phonon magnetochiral effect of band-geometric origin in Weyl semimetals
Sanghita Sengupta, M. Nabil Y. Lhachemi, Ion Garate
The phonon magnetochiral effect consists of a nonreciprocity in the velocity or attenuation of acoustic waves when they propagate parallel and antiparallel to an external magnetic…
Anomalous Transition Magnetic Moments in two-dimensional Dirac Materials
Sanghita Sengupta, Madalina I. Furis, Oleg P. Sushkov +1
We show that the magnetic response of atomically thin materials with Dirac spectrum and spin-orbit interactions can exhibit strong dependence on electron-electron interactions. Whi…
Theory of Phonon-Assisted Adsorption in Graphene: Many-Body Infrared Dynamics
Sanghita Sengupta
We devise a theory of adsorption of low-energy atoms on suspended graphene membranes maintained at 10 K based on a model of atom-acoustic phonon interactions. Our primary technique…
Infrared Dynamics of Cold Atoms on Hot Graphene Membranes
Sanghita Sengupta, Valeri N. Kotov, Dennis P. Clougherty
We study the infrared dynamics of low-energy atoms interacting with a sample of suspended graphene at finite temperature. The dynamics exhibits severe infrared divergences order by…