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quant-ph2026

Operational bounds and diagnostics for coherence in energy transfer

Julia Liebert, Gregory D. Scholes

Excitation energy transfer in light-harvesting aggregates is highly efficient, yet whether quantum coherence plays an operational role in transport remains debated. A central chall…

quant-ph2026

Operational impact of quantum resources in chemical dynamics

Julia Liebert, Gregory D. Scholes

Quantum coherence and other non-classical features are widely discussed in chemical dynamics, yet it remains difficult to quantify when such resources are operationally relevant fo…

quant-ph2025

Solving one-body ensemble N-representability problems with spin

Julia Liebert, Federico Castillo, Jean-Philippe Labbé +2

The Pauli exclusion principle is fundamental to understanding electronic quantum systems. It namely constrains the expected occupancies of orbitals according to $0 \le…

quant-ph2025

Refining ensemble -representability of one-body density matrices from partial information

Julia Liebert, Anna O. Schouten, Irma Avdic +2

The -representability problem places fundamental constraints on reduced density matrices (RDMs) that originate from physical many-fermion quantum states. Motivated by recent dev…

quant-ph2025

A toolbox of spin-adapted generalized Pauli constraints

Julia Liebert, Yannick Lemke, Murat Altunbulak +3

We establish a toolbox for studying and applying spin-adapted generalized Pauli constraints (GPCs) in few-electron quantum systems. By exploiting the spin symmetry of realistic