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20242026
most citedPhoton Many-body Dispersion: an Exchange-correlation Functional for Strongly Coupled Light-matter Systems

14 citations · 15 across the 5 of their papers we have counts for

collaborators

7 papers

quant-ph2026

Competing pathways in polaritonic chemistry and general harmonic environments

Jonas Vinther, Leonardo A. Cunha, Johannes Flick

Recent experiments suggest that strong light-matter coupling between molecules and cavity modes can significantly modify chemical reaction rates and yields. Despite multiple propos…

cond-mat.mtrl-sci2026

Modifying van der Waals Materials via Cavity Vacuum Fluctuations

Mohammad Hassan, Cankut Tasci, Leonardo A. Cunha +2

In the field of cavity quantum materials, vacuum fluctuations of optical cavities are used for modifying ground-state properties of quantum materials without external driving. Here…

physics.chem-ph2026

Engineering molecular potential energy surfaces using magnetic cavity quantum electrodynamics

Lukas Weber, Leonardo dos Anjos Cunha, Johannes Flick +1

We investigate the effects of coupling a quantum-magnetic cavity field to molecules. Our high-precision auxiliary-field quantum Monte Carlo calculations capture the effect of the c…

physics.chem-ph2025

Super-Poissonian Squeezed Light in the Ground State of Strongly Coupled Light-matter Systems

Cankut Tasci, Mohammad Hassan, Leon Orlov-Sullivan +2

Strong light-matter coupling enables hybrid states in which photonic and electronic degrees of freedom become correlated even in the ground state. While many-body effects in long-r…

quant-ph2025

Testing electron-photon exchange-correlation functional performance for many-electron systems under weak and strong light-matter coupling

Iman Ahmadabadi, I-Te Lu, Leonardo A. Cunha +3

We present results of a photon-free exchange-correlation functional within the local density approximation (pxcLDA) for quantum electrodynamics density functional theory (QEDFT) th…

cond-mat.str-el2024★ 1 cited

The light-matter correlation energy functional of the cavity-coupled two-dimensional electron gas via quantum Monte Carlo simulations

Lukas Weber, Miguel A. Morales, Johannes Flick +2

We perform extensive simulations of the two-dimensional cavity-coupled electron gas in a modulating potential as a minimal model for cavity quantum materials. These simulations are…

physics.chem-ph2024★ 14 cited

Photon Many-body Dispersion: an Exchange-correlation Functional for Strongly Coupled Light-matter Systems

Cankut Tasci, Leonardo A. Cunha, Johannes Flick

We introduce an electron-photon exchange-correlation functional for quantum electrodynamical density-functional theory (QEDFT). The approach, photon MBD (pMBD), is inspired by the…