English

Generating pairwise entanglement in periodically driven quantum spin chains with stochastic resetting

Quantum Physics 2026-04-22 v1 Statistical Mechanics

Abstract

We show that stochastic resetting may lead to finite entanglement between individual, spatially separated spins (pairwise entanglement) in the steady state of the spin chains driven periodically with frequency ωD\omega_D. We find the presence of a critical resetting rate rcr_c below which the steady state pairwise entanglement, measured via concurrence CC, vanishes. We also identify an optimal resetting rate rmr_m at which CC becomes maximum. These critical and optimal rates exhibit a non-monotonic dependence on ωD\omega_D. Our analysis demonstrates the existence of special drive frequencies at which rcr_c vanishes and rmr_m attains minima. We compute CC in the presence of stochastic resetting using exact diagonalization for both the integrable XY model and non-integrable Rydberg spin chains, which demonstrate these features. Our numerical results match perturbative analytical expressions for the special drive frequencies in the large drive amplitude regime.

Keywords

Cite

@article{arxiv.2604.19333,
  title  = {Generating pairwise entanglement in periodically driven quantum spin chains with stochastic resetting},
  author = {Sinchan Ghosh and Manas Kulkarni and K. Sengupta and Satya N. Majumdar},
  journal= {arXiv preprint arXiv:2604.19333},
  year   = {2026}
}

Comments

19 pages, 9 figures, including supplementary material

R2 v1 2026-07-01T12:28:09.580Z