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arXiv · 2502.12901

Universality and emergent effective fluid from jets and string breaking in the massive Schwinger model using tensor networks

Romuald A. Janik·Maciej A. Nowak·Marek M. Rams·Ismail Zahed
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Abstract

We analyze the correlation between the energy, momentum and spatial entanglement produced by two luminal jets in the massive Schwinger model. Using tensor network methods, we show that for m/g > 1/{\pi}, in the vicinity of the strong to weak coupling transition, a nearly perfect and chargeless effective fluid behavior appears around the mid-rapidity region with a universal energy-pressure relationship. The evolution of energy and pressure is strongly correlated with the rise of the spatial entanglement entropy, indicating a key role of quantum dynamics. Some of these observations may be used to analyze high multiplicity jet fragmentation events, energy-energy and energy-charge correlators at current collider energies.

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Romuald A. Janik, Maciej A. Nowak, Marek M. Rams, Ismail Zahed. 2025-02-18. Universality and emergent effective fluid from jets and string breaking in the massive Schwinger model using tensor networks. https://arxiv.org/abs/2502.12901

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