activity
20242026
collaborators

5 papers

cond-mat.str-el2026

Plane-Wave Photon-Fock Cavity QED-DFT: Chiral-Cavity-Induced Topology in Graphene

Yetmgeta Aklilu, Kalman Varga

We develop an explicit plane-wave (PW) photon-Fock approach to the quantized, velocity-gauge Pauli--Fierz Hamiltonian for periodic, first-principles calculations: because…

physics.chem-ph2026

Quantum-Electrodynamical Time-Dependent Density Functional Theory Description of Molecules Interacting with Light

Yetmgeta Aklilu, Tiany Yang, Cody Covington +1

We study light-mediated interactions between spatially separated molecules using real-time quantum electrodynamical time-dependent density functional theory based on the Pauli-Fier…

physics.chem-ph2025

Quantum-electrodynamical time-dependent density functional theory description of molecules in optical cavities

Yetmgeta Aklilu, Matthew Shepherd, Cody L. Covington +1

A quantum electrodynamical time-dependent density functional theory framework is applied to describe strongly coupled light--matter interactions in cavity environments. The formali…

physics.chem-ph2025

The effect of finite mass in cavity QED calculations

Ankita Nair, Vikas Bharti, Yetmgeta S. Aklilu +1

The effect of finite nuclear mass is investigated in coupled light matter systems in cavity quantum electrodynamics (cavity QED) using the Pauli-Fierz Hamiltonian. Three different…

physics.chem-ph2024

Description of the hydrogen atom and the He+ ion in an optical cavity using the Pauli-Fierz Hamiltonian

Yetmgeta Aklilu, Kálmán Varga

A system of one electron in a Coulomb potential in an optical cavity is solved using a tensor-product light-matter basis. The problem was treated at the level of the Pauli-Fierz Ha…