Formalism of rotating-wave approximation in high-spin system with quadrupole interaction
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作者:
Ding, Wen-Kui
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Zhejiang Sci Tech Univ, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
Zhejiang Sci Tech Univ, Dept Phys, Hangzhou 310018, Peoples R China
Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China
Zhejiang Univ, Dept Phys, Dept Phys, Hangzhou 310027, Peoples R ChinaZhejiang Sci Tech Univ, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
Ding, Wen-Kui
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,2
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,4
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Wang, Xiao-Guang
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Zhejiang Sci Tech Univ, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
Zhejiang Sci Tech Univ, Dept Phys, Hangzhou 310018, Peoples R China
China Acad Engn Phys, Grad Sch, Beijing 100193, Peoples R ChinaZhejiang Sci Tech Univ, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
Wang, Xiao-Guang
[1
,2
,5
]
机构:
[1] Zhejiang Sci Tech Univ, Key Lab Opt Field Manipulat Zhejiang Prov, Hangzhou 310018, Peoples R China
[2] Zhejiang Sci Tech Univ, Dept Phys, Hangzhou 310018, Peoples R China
[3] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China
[4] Zhejiang Univ, Dept Phys, Dept Phys, Hangzhou 310027, Peoples R China
[5] China Acad Engn Phys, Grad Sch, Beijing 100193, Peoples R China
We investigate the rotating wave approximation applied in the high-spin quantum system driven by a linearly polarized alternating magnetic field in the presence of quadrupole interactions. The conventional way to apply the rotating wave approximation in a driven high-spin system is to assume the dynamics being restricted in the reduced Hilbert space. However, when the driving strength is relatively strong or the driving is off resonant, the leakage from the target resonance subspace cannot be neglected for a multi-level quantum system. We propose the correct formalism to apply the rotating wave approximation in the full Hilbert space by taking this leakage into account. By estimating the operator fidelity of the time propagator, our formalism applied in the full Hilbert space unambiguously manifests great advantages over the conventional method applied in the reduced Hilbert space.
机构:
Al Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Phys, Riyadh, Saudi Arabia
Abdus Salam Int Ctr Theoret Phys, Miramare Trieste, ItalyAl Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Phys, Riyadh, Saudi Arabia
机构:
Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China
Hubei Univ Sci & Technol, Inst Photon & Phototechnol, Xianning 437100, Peoples R ChinaHuazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China
Deng, Wen-Wu
Li, Gao-xiang
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Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R ChinaHuazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China
机构:
Chongqing Univ, Ctr Modern Phys, Chongqing 400044, Peoples R ChinaChongqing Univ, Ctr Modern Phys, Chongqing 400044, Peoples R China
Zhang, Yu-Yu
Chen, Qing-Hu
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Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
Zhejiang Normal Univ, Ctr Stat & Theoret Condensed Matter Phys, Jinhua 321004, Peoples R ChinaChongqing Univ, Ctr Modern Phys, Chongqing 400044, Peoples R China
Chen, Qing-Hu
Zhao, Yang
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Nanyang Technol Univ, Div Mat Sci, Singapore 639798, SingaporeChongqing Univ, Ctr Modern Phys, Chongqing 400044, Peoples R China