Birth and Death of Entanglement in Hamiltonian-Driven Quantum Games under Decoherence
Abstract
Quantum game theory investigates the influence of quantum resources on strategic decision-making. In this work, two-player quantum games based on the Transverse Field Ising Model(TFIM) are investigated under amplitude-damping decoherence. The TFIM Hamiltonian naturally produces a family of entangling gates, enabling a physically motivated implementation of quantum games. The effects of noise on Nash equilibria, players' payoffs, concurrence and coherence of the quantum states for different initial states and strategy pairs are analyzed. The results show that decoherence progressively suppresses quantum strategic advantages, with maximum damping driving all outcomes to identical classical payoffs. The concurrence and coherence analysis of the states generated in the quantum game reveal initial state and strategy dependent quantum correlation dynamics, including entanglement sudden birth and death.
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BibTeX
@misc{thomas2026birth,
title = {{Birth and Death of Entanglement in Hamiltonian-Driven Quantum Games under Decoherence}},
author = {Teena Thomas and S. Balakrishnan},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.11522},
eprint = {2609.11522},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.11522},
}
RIS
TY - UNPB
TI - Birth and Death of Entanglement in Hamiltonian-Driven Quantum Games under Decoherence
AU - Teena Thomas
AU - S. Balakrishnan
PY - 2026
DA - 2026/09/10
PB - arXiv
DO - 10.48550/arxiv.2609.11522
UR - https://arxiv.org/abs/2609.11522
AB - Quantum game theory investigates the influence of quantum resources on strategic decision-making. In this work, two-player quantum games based on the Transverse Field Ising Model(TFIM) are investigated under amplitude-damping decoherence. The TFIM Hamiltonian naturally produces a family of entangling gates, enabling a physically motivated implementation of quantum games. The effects of noise on Nash equilibria, players' payoffs, concurrence and coherence of the quantum states for different initial states and strategy pairs are analyzed. The results show that decoherence progressively suppresses quantum strategic advantages, with maximum damping driving all outcomes to identical classical payoffs. The concurrence and coherence analysis of the states generated in the quantum game reveal initial state and strategy dependent quantum correlation dynamics, including entanglement sudden birth and death.
ER -