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20242026
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quant-ph2026

Liouvillian Geometry of Multidimensional Spectra: Pathway Transport and Observational Holonomy in Open Quantum Systems

Eric R. Bittner, Carlos Silva-Acuña, Carlos Silva-Acuña +1

Liouville pathways provide the conceptual foundation for interpreting multidimensional spectroscopies and are commonly represented as independent contributions to the nonlinear res…

quant-ph2026

Geometric Response in Open Quantum Systems: Coherence, Curvature, and Susceptibility

Eric R. Bittner, Carlos Silva-Acuña

We develop a response-geometric framework for open quantum systems by decomposing the stationary-state response tensor into symmetric and antisymmetric sectors. The symmetric secto…

quant-ph2026

Holonomy and Complementarity in Open Quantum Systems

Eric R Bittner

Complementarity relations constrain the distribution of coherence, predictability, and openness in quantum systems. Here we show that, in open quantum systems, these local constrai…

quant-ph2026

Phase-Reference Control of Steady-State Entanglement in Open Quantum Systems

Areeda Ayoub, Alfonso Castillo-Gonzalez, Eric R Bittner

We show that steady-state entanglement in open quantum systems is controlled by the phase reference of a phase-sensitive reservoir. Using a covariance-matrix approach for Gaussian-…

quant-ph2026

Geometric Thermodynamics in Open Quantum Systems: Coherence, Curvature, and Work

Eric R. Bittner

We formulate a geometric framework for quasistatic thermodynamics in open quantum systems by parameterizing the dynamics on a control manifold. In the quasistatic limit, the system…

quant-ph2026

Thermalization Regimes in a Chaotic Tavis-Cummings Model

Sameer Dambal, Eric R. Bittner

This work investigates the emergent thermalization regimes in a chaotic Tavis-Cummings (TC) model and their implications in quantum spectroscopy. While the TC model is a cornerston…