2026 CAP Congress / Congrès de l'ACP 2026

Session

(DTP) R2-7 | (DPT)

R2-7

25 Jun 2026, 16:15

U. Ottawa - Learning Crossroads (CRX) Building

670. Modelling Thermoelectric Figure of Merit for Quantum Materials Using the Lambert W Function

Dr Farrukh Chishtie (Department of Occupational Science and Occupational Therapy)

25/06/2026, 16:15

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

Achieving high thermoelectric performance requires reconciling the competing dependences of the Seebeck coefficient, electrical conductivity, and thermal conductivity that together determine the figure of merit ZT. Our work develops a unified analytical framework that combines polylogarithmic representations of Fermi–Dirac statistics with multibranch formulations of the Lambert W function to...

896. Local pumping of competing order: Dynamical order within an expanding synchronization front

Ganesh Ramachandran

25/06/2026, 16:30

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

Many ordered physical systems are proximate to a low-energy competing phase. This can manifest as a roton-like feature within a dispersing collective mode. A paradigmatic example is the attractive Hubbard model with its superfluid ground state. Close to half-filling, it hosts a roton-like excitation associated with a competing charge density wave order. Inspired by pump-probe experiments, we...

490. Newton Revisited: Modifications and Practical Insights into Classical Mechanics

Amritpal Singh Nafria (Lamrin Tech Skills University)

25/06/2026, 16:45

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

This paper challenges the conventional application of Newton's second law, demonstrating its significant limitations in real-world environments. Through experiments measuring friction and air resistance, and through analyses extending to celestial bodies like Pluto, we reveal major discrepancies between theoretical predictions and observed force dynamics. Our findings underscore the critical...

929. resonant-state expansion for non-relativistic wave equation in one dimension

Dr Abdullahi Tanimu (Department of Physics, Faculty of natural and applied science, Umaru Musa Yar'adua University Katsina, Nigeria)

25/06/2026, 17:00

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Non-Student) / Orale (non-étudiant(e))

The resonant state expansion (RSE), a rigorous perturbation theory recently developed in electrodynamics, is here applied to non-relativistic wave equation in one dimension. The resonant state (RSs) of a symmetric double quantum well structure superimposed by a combination of delta functions was first calculated. These RSs are then taken as an unperturbed basis for the RSE. The resonant state...