Researchers have made a breakthrough in understanding the role of non-Hermiticity in inducing thermal entanglement phase transitions in quantum systems. A theoretical analysis of a two-qubit system with asymmetric Heisenberg $XY$ interactions revealed that non-Hermiticity can trigger maximal bipartite entanglement and quantum phase transitions without the need for external magnetic fields1. As the system approaches thermal equilibrium at zero temperature, it achieves maximal entanglement, demonstrating the significant impact of non-Hermiticity on quantum behavior. This discovery sheds light on the complex interplay between non-Hermiticity, entanglement, and quantum phase transitions, which is crucial for the development of quantum technologies. The findings have significant implications for practitioners working on quantum computing and quantum information processing, as they may lead to new methods for controlling and manipulating entanglement in quantum systems.
Non-Hermiticity induced thermal entanglement phase transition
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Why This Matters
At thermal equilibrium as $T\rightarrow 0$, the system attains maximal entanglement ${C}=
References
- Anonymous. (2026, March 23). Non-Hermiticity induced thermal entanglement phase transition. arXiv Quantum Physics. https://arxiv.org/abs/2603.21968v1
Original Source
arXiv Quantum Physics
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