Chiral Transfer and Entanglement Generation of Even-Parity Bell States with Engineered Two-Photon Loss
Abstract
We investigate chiral transfer and dissipative generation of even-parity Bell states in a two-qubit system with coherent two-photon driving and engineered two-photon loss. We find that adiabatic encirclement of a second-order exceptional point induces direction-dependent transfer between the Bell states |Φ+⟩ and |Φ-⟩, governed by a time-integrated low-loss branch-selection mechanism. We develop a hybrid-Liouvillian description with a control parameter q that interpolates between conditional no-jump dynamics and unconditional Lindblad evolution, and use it to assess how exceptional-point-induced chirality survives in the presence of quantum jumps. When the same parameter loop is initialized in the separable state |00⟩, it directly generates strong even-parity entanglement. Together, these results extend dissipative Bell-state control beyond the single-excitation manifold. They further demonstrate that exceptional-point-based protocols can unify chiral state transfer and entanglement generation within a single engineered two-photon platform.
Related
- Exceptional point structure and chiral state transfer in a rate-operator-engineered 𝒫𝒯-symmetric Bose-Hubbard dimer
- Parity-odd CMB Correlations induced by a Chiral Gravitational Wave Background
- Odd-parity magnon spin polarization from chiral four-spin exchange in a honeycomb antiferromagnet
- The effective gravitational action of a massless chiral fermion and the absence of parity-odd contributions
- Single Dirac Fermions on a Lattice: A Unified View of Chiral and Parity Anomalies in Condensed Matter
BibTeX
@misc{xiao2026chiral,
title = {{Chiral Transfer and Entanglement Generation of Even-Parity Bell States with Engineered Two-Photon Loss}},
author = {Lin Xiao and Jian Li and Mu Zhou and Bin Wei and Qing-Xu Li and Jia-Ji Zhu},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.31239},
eprint = {2609.31239},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.31239},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Chiral Transfer and Entanglement Generation of Even-Parity Bell States with Engineered Two-Photon Loss
AU - Lin Xiao
AU - Jian Li
AU - Mu Zhou
AU - Bin Wei
AU - Qing-Xu Li
AU - Jia-Ji Zhu
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.31239
UR - https://arxiv.org/abs/2609.31239
AB - We investigate chiral transfer and dissipative generation of even-parity Bell states in a two-qubit system with coherent two-photon driving and engineered two-photon loss. We find that adiabatic encirclement of a second-order exceptional point induces direction-dependent transfer between the Bell states |Φ^+⟩ and |Φ^-⟩, governed by a time-integrated low-loss branch-selection mechanism. We develop a hybrid-Liouvillian description with a control parameter q that interpolates between conditional no-jump dynamics and unconditional Lindblad evolution, and use it to assess how exceptional-point-induced chirality survives in the presence of quantum jumps. When the same parameter loop is initialized in the separable state |00⟩, it directly generates strong even-parity entanglement. Together, these results extend dissipative Bell-state control beyond the single-excitation manifold. They further demonstrate that exceptional-point-based protocols can unify chiral state transfer and entanglement generation within a single engineered two-photon platform.
ER -