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Dynamical evolution of imaginarity resources in non-Markovian environments |
| Hong-Biao Li(李宏彪)1, Deng-Guo Kong(孔德国)1, Xue-Ping Chai(柴学平)1, Jin-Long Yu(余金龙)1,†, and Qiang Zheng(郑强)2,‡ |
1 College of Mechanical and Electrical Engineering, Tarim University, Aral 843300, China;
2 School of Physical Science and Technology, Tiangong University, Tianjin 300387, China |
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Abstract The pivotal role of complex numbers in quantum mechanics underpins the resource theory of imaginarity. We investigate imaginarity dynamics in a single-qubit open system coupled to a non-Markovian environment. Crucially, cavity field detuning emerges as the dominant regulator, driving continuous conversion between the real and imaginary components of coherence. Nonzero detuning induces characteristic non-periodic oscillations of imaginarity between zero and maximal values, preventing complete decoherence at specific times. We establish that imaginarity resources stem from both intrinsic system evolution and environmental feedback. Significantly, detuning-driven imaginarity generation persists even in Markovian regimes, demonstrating its origin beyond environmental memory effects. These insights offer new perspectives for understanding and harnessing quantum coherence.
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Received: 03 April 2025
Revised: 01 June 2025
Accepted manuscript online: 16 June 2025
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PACS:
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03.67.-a
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(Quantum information)
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| Fund: This work received the generous support of the Tianchi Talented Young Doctoral Fund Project and Huyang Talent Research Startup Fund Project of Tarim University (Project Number: TDZKSS202511). |
Corresponding Authors:
Jin-Long Yu, Qiang Zheng
E-mail: 120220016@taru.edu.cn;qiangzhengtg@tiangong.edu.cn
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Cite this article:
Hong-Biao Li(李宏彪), Deng-Guo Kong(孔德国), Xue-Ping Chai(柴学平), Jin-Long Yu(余金龙), and Qiang Zheng(郑强) Dynamical evolution of imaginarity resources in non-Markovian environments 2025 Chin. Phys. B 34 110309
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