Stabilizing correlated pair tunneling of spin-orbit-coupled bosons in a non-Hermitian driven double well

Quantum Physics [Submitted on 18 Mar 2026] Stabilizing correlated pair tunneling of spin-orbit-coupled bosons in a non-Hermitian driven double well Miaoqian Lu, Xinzhou Guan, Mohan Xia, Wenjuan Li, Jincheng Hu, Xinyue Zhang, Yunrong Luo We present an analytical framework for stabilizing second-order correlated tunneling of two spin-orbit-coupled bosons in a periodically driven non-Hermitian double-well potential. By combining Floquet theory with multiple-scale asymptotic analysis, we derive effective second-order dynamics and exact quasienergy spectra in the strongly interacting regime. Our analysis reveals distinct stability mechanisms for three fundamental tunneling channels: interwell spin-conserving, interwell spin-flipping, and intrawell spin-flipping. For balanced gain and loss, we identify discrete, well-defined parameter regions where stable pair tunneling emerges, with the spin-flipping channel exhibiting a characteristic symmetry absent in its spin-conserving counterpart. Under unbalanced gain-loss conditions, stability is achieved only when the gain and loss coefficients satisfy specific parametric relations, enabling dissipation-controlled tunneling. Most notably, stable intrawell spin-flipping, while inherently unstable for an initial Fock state, becomes accessible when the system is prepared in a coherent superposition state, thereby revealing that initial-state coherence can serve as a control parameter for dynamical stability in non-Hermitian systems. These results expand the possibilities for controlling correlated tunneling in many-body systems with engineered dissipation. Subjects: Quantum Physics (quant-ph) Cite as: arXiv:2603.17410 [quant-ph]   (or arXiv:2603.17410v1 [quant-ph] for this version)   https://doi.org/10.48550/arXiv.2603.17410 Focus to learn more Submission history From: Yunrong Luo [view email] [v1] Wed, 18 Mar 2026 06:39:48 UTC (2,838 KB) Access Paper: HTML (experimental) view license Current browse context: quant-ph < prev   |   next > new | recent | 2026-03 References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar Export BibTeX Citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Demos Related Papers About arXivLabs Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)