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quant-ph2024★ 1 cited
Quantum dynamics of frustrated Josephson junction arrays embedded in a transmission line: an effective XX spin chain with long-range interaction
Benedikt J. P. Pernack, Mikhail V. Fistul, Ilya M. Eremin
We study theoretically a variety of collective quantum phases occurring in frustrated saw-tooth chains of Josephson junctions embedded in a dissipationless transmission line. The b…
quant-ph2023★ 3 cited
Schrieffer-Wolff transformation for non-Hermitian systems: application for -symmetric circuit QED
Grigory A. Starkov, Mikhail V. Fistul, Ilya M. Eremin
Combining non-hermiticity and interactions yields novel effects in open quantum many-body systems. Here, we develop the generalized Schrieffer-Wolff transformation and derive the e…