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学者姓名：叶赛云
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Abstract ：
In this paper, we present a theoretical investigation of multiphoton processes between a single atom and a multimode optical or microwave field. At first, we examine two-photon excitation, which involves the simultaneous excitation of two photons in different cavity modes by a single atom. We demonstrate that when the transition frequency of an atom is equal to the sum of the frequencies of two cavity modes, there exists a resonant coupling between the atom and the two-mode cavity field, which leads to the simultaneous excitation of the two cavity photons with the atom initially in its excited state. Moreover, we found that this coupling is coherent and reversible, allowing the atom initially in the ground state to simultaneously absorb all the photons from the cavities and transit to its excited state. Finally, we also show that this coherent interaction, in principle, can be extended to describe multiphoton processes between a single atom and a multimode cavity field, such as a three-mode cavity. The parameters used in the numerical simulation are based on the experimentally demonstrated values in circuit quantum electrodynamics systems.
Keyword ：
multiphoton processes multiphoton processes quantum coherence quantum coherence quantum electrodynamics quantum electrodynamics
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| GB/T 7714 | Cheng, Lu-Yun , Lan, Zi-Liang , Ye, Sai-Yun et al. Multiphoton processes between one atom and a multimode field [J]. | LASER PHYSICS LETTERS , 2025 , 22 (6) . |
| MLA | Cheng, Lu-Yun et al. "Multiphoton processes between one atom and a multimode field" . | LASER PHYSICS LETTERS 22 . 6 (2025) . |
| APA | Cheng, Lu-Yun , Lan, Zi-Liang , Ye, Sai-Yun , Zhong, Zhi-Rong . Multiphoton processes between one atom and a multimode field . | LASER PHYSICS LETTERS , 2025 , 22 (6) . |
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Cooling the internal and external degrees of freedom (DOFs) of a massive mechanical system close to the quantum ground state is a prerequisite for the quantum manipulation of macroscopic mechanical devices. In this paper, we propose a approach to simultaneously cool both the internal and external DOFs (phonon and center-of-mass modes) of a levitated micromagnet within a cavity magnomechanical (CMM) system. By driving the cavity mode and magnon mode on their respective red sidebands with microwave fields, the proposed scheme effectively suppresses Stokes scattering and significantly enhances the net cooling rate. Moreover, differing from conventional CMM systems, our proposal can achieve simultaneous cooling of the internal and external DOFs even in the unresolved-sideband regime. Our numerical simulations demonstrate the robustness and effectiveness of the scheme by analyzing average occupancies of the internal and external DOFs, as well as identifying the optimal cooling conditions. The proposed scheme establishes a foundation for probing and manipulating the internal DOFs by controlling the external DOFs, which may open additional possibilities for studying nonequilibrium quantum mesoscopic physics.
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| GB/T 7714 | Chen, Lei , Liu, Yang , Bin, Liang et al. Simultaneous cooling of the internal and external degrees of freedom of a levitated micromagnet in a cavity magnomechanical system [J]. | PHYSICAL REVIEW RESEARCH , 2025 , 7 (3) . |
| MLA | Chen, Lei et al. "Simultaneous cooling of the internal and external degrees of freedom of a levitated micromagnet in a cavity magnomechanical system" . | PHYSICAL REVIEW RESEARCH 7 . 3 (2025) . |
| APA | Chen, Lei , Liu, Yang , Bin, Liang , Ye, Sai-Yun , Zhong, Zhi-Rong . Simultaneous cooling of the internal and external degrees of freedom of a levitated micromagnet in a cavity magnomechanical system . | PHYSICAL REVIEW RESEARCH , 2025 , 7 (3) . |
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Abstract ：
This paper presents a theoretical analysis of remote information transmission based on a cavity-magnon quantum system. We first investigate the dynamics of a two-site coupled-cavity model, where each cavity contains a magnon. Under the condition of large hopping between two cavities or large detuning between the magnon and cavity modes, the state transfer between two distant magnons could be achieved without exciting the cavity field modes. Optimal coherent state transfer is also demonstrated by carefully adjusting parameters to suppress the cavity excitations. Our model could be utilized as the building block for quantum network by extending to one-dimensional coupled cavity chains.
Keyword ：
cavity-magnonics cavity-magnonics coherent state transfer coherent state transfer dynamics of a two-site coupled-cavity model dynamics of a two-site coupled-cavity model large hopping and large detuning large hopping and large detuning
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| GB/T 7714 | Chen, Ya-Wen , Cheng, Lu-Yun , Lin, Si-Qi et al. Remote information transfer between cavity-magnonics nodes [J]. | PHYSICA SCRIPTA , 2025 , 100 (1) . |
| MLA | Chen, Ya-Wen et al. "Remote information transfer between cavity-magnonics nodes" . | PHYSICA SCRIPTA 100 . 1 (2025) . |
| APA | Chen, Ya-Wen , Cheng, Lu-Yun , Lin, Si-Qi , Ye, Sai-Yun , Zhong, Zhi-Rong . Remote information transfer between cavity-magnonics nodes . | PHYSICA SCRIPTA , 2025 , 100 (1) . |
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Cooling the motion of multiple isolated, levitated particles has the potential to explore the limits of quantum mechanics in a new mass regime. This technique not only serves as a foundation for examining macroscopic quantum states and building high-precision sensors, but also crucial for overcoming detrimental cross-coupling and decoherence effects in multimode systems. In this paper, we studied that the center-of-mass modes of multi-magnons can be simultaneously cooled to their quantum ground states. Our scheme is realized by adjusting the coupling position of the particle to compensate for the reduction in coupling strength due to magnonic excitations. Additionally, we find that the cooling rate of a magnon is influenced by its own coupling strength and the effective detuning. The numerical simulation results indicate that the lowest phonon occupancy can be cooled to less than 1 simultaneously.
Keyword ：
Cavity magnomechanical system Cavity magnomechanical system Levitated macromagnets Levitated macromagnets Quantum ground-state cooling Quantum ground-state cooling
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| GB/T 7714 | Chen, Lei , Liu, Yang , Bin, Liang et al. Simultaneous cooling of two levitated macromagnets in cavity magnomechanical system [J]. | QUANTUM INFORMATION PROCESSING , 2025 , 24 (3) . |
| MLA | Chen, Lei et al. "Simultaneous cooling of two levitated macromagnets in cavity magnomechanical system" . | QUANTUM INFORMATION PROCESSING 24 . 3 (2025) . |
| APA | Chen, Lei , Liu, Yang , Bin, Liang , Ye, Sai-Yun , Luo, Rong-Xiang , Zhong, Zhi-Rong . Simultaneous cooling of two levitated macromagnets in cavity magnomechanical system . | QUANTUM INFORMATION PROCESSING , 2025 , 24 (3) . |
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In this paper, we show that the dynamical Casimir effect can be observed in a hybrid cavity optomechanical system. By introducing a two-level atom into the cavity, the atomic transition from an excited state to the ground state can evoke a two-photon process. Our proposal does not require a driving field to induce the dynamical Casimir effect, which is very alternative to previous schemes. Furthermore, we show that when the atom is replaced by an identical atomic ensemble, the system not only can simulate the similar dynamic Casimir effect, but also exist more plentiful physical phenomena, i.e., higher-order resonance. Numerical simulation confirms the validity of our derivation.
Keyword ：
Cavity optomechanical system Cavity optomechanical system Dynamical Casimir effect Dynamical Casimir effect Two-photon JC model Two-photon JC model
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| GB/T 7714 | Lan, Zi-Liang , Chen, Ya-Wen , Cheng, Lu-Yun et al. Dynamical Casimir effect in a hybrid cavity optomechanical system [J]. | QUANTUM INFORMATION PROCESSING , 2024 , 23 (3) . |
| MLA | Lan, Zi-Liang et al. "Dynamical Casimir effect in a hybrid cavity optomechanical system" . | QUANTUM INFORMATION PROCESSING 23 . 3 (2024) . |
| APA | Lan, Zi-Liang , Chen, Ya-Wen , Cheng, Lu-Yun , Chen, Lei , Ye, Sai-Yun , Zhong, Zhi-Rong . Dynamical Casimir effect in a hybrid cavity optomechanical system . | QUANTUM INFORMATION PROCESSING , 2024 , 23 (3) . |
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Nonclassical effects in mesoscopic systems have attracted much attention recently. In this paper, it is shown that multiphonon bundle emission can be observed in a strong-coupling cavity optomechanical system. Theoretical analysis shows that when the driving field is adjusted to nth-order sideband excitation, the coupling between the cavity mode and the vibrational mode leads to super-Rabi oscillations, and finally results in an n-phonon bundles emission. Based on the current technology, this process can work in a wide range of parameters. Numerical simulation confirms the validity of the derivation. It is thought that this physical mechanism broadens the applications of cavity optomechanical system in realm of quantum phononics, such as in quantum metrology and phonon laser.
Keyword ：
cavity optomechanical systems cavity optomechanical systems multiphonon bundle emissions multiphonon bundle emissions super-Rabi oscillations super-Rabi oscillations
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| GB/T 7714 | Deng, Tong-Hui , An, Xing-Wei , Lan, Zi-Liang et al. Multiphonon Bundle Emission in a Strong-Coupling Cavity Optomechanical System [J]. | ANNALEN DER PHYSIK , 2023 , 535 (4) . |
| MLA | Deng, Tong-Hui et al. "Multiphonon Bundle Emission in a Strong-Coupling Cavity Optomechanical System" . | ANNALEN DER PHYSIK 535 . 4 (2023) . |
| APA | Deng, Tong-Hui , An, Xing-Wei , Lan, Zi-Liang , Chen, Lei , Ye, Sai-yun , Zhong, Zhi-Rong . Multiphonon Bundle Emission in a Strong-Coupling Cavity Optomechanical System . | ANNALEN DER PHYSIK , 2023 , 535 (4) . |
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Abstract ：
We present an alternative scheme to achieve Schrodinger cat states in a strong coupling hybrid cavity optomechanical system. Under the single-photon strong-coupling regime, the interaction between the atom-cavity-oscillator system can induce the mesoscopic mechanical oscillator to Schrodinger cat states. Comparing to previous schemes, the proposed proposal consider the second order approximation on the Lamb-Dicke parameter, which is more universal in the experiment. Numerical simulations confirm the validity of our derivation.
Keyword ：
hybrid cavity optomechanical system hybrid cavity optomechanical system quantum network quantum network
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| GB/T 7714 | An, Xingwei , Deng, Tonghui , Chen, Lei et al. Generation of Schrodinger Cat States in a Hybrid Cavity Optomechanical System [J]. | ENTROPY , 2022 , 24 (11) . |
| MLA | An, Xingwei et al. "Generation of Schrodinger Cat States in a Hybrid Cavity Optomechanical System" . | ENTROPY 24 . 11 (2022) . |
| APA | An, Xingwei , Deng, Tonghui , Chen, Lei , Ye, Saiyun , Zhong, Zhirong . Generation of Schrodinger Cat States in a Hybrid Cavity Optomechanical System . | ENTROPY , 2022 , 24 (11) . |
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Abstract ：
The coherent evolution of two qubits mediated by a set of bosonic field modes is investigated. By assuming a specific asymmetric encoding of the quantum states in the internal levels of the qubits, we show that entangling quantum gates can be realized, with high fidelity, even when a large number of mediating modes is involved. The effect of losses and imperfections on the gates' operation is also considered in detail.
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| GB/T 7714 | Ye, Sai-Yun , Yang, Zhen-Biao , Zheng, Shi-Biao et al. Coherent quantum effects through dispersive bosonic media [J]. | PHYSICAL REVIEW A , 2010 , 82 (1) . |
| MLA | Ye, Sai-Yun et al. "Coherent quantum effects through dispersive bosonic media" . | PHYSICAL REVIEW A 82 . 1 (2010) . |
| APA | Ye, Sai-Yun , Yang, Zhen-Biao , Zheng, Shi-Biao , Serafini, Alessio . Coherent quantum effects through dispersive bosonic media . | PHYSICAL REVIEW A , 2010 , 82 (1) . |
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We propose a scheme for the deterministic coherent manipulation of two atomic qutrits, trapped in separate cavities coupled through a short optical fibre or optical resonator. We study such a system in the regime of dispersive atom-field interactions, where the dynamics of atoms, cavities and fibre operates through virtual population of both the atomic excited states and photonic states in the cavities and fibre. We show that the resulting effective dynamics allows for the creation of robust qutrit entanglement, and thoroughly investigate the influence of imperfections and dissipation, due to atomic spontaneous emission and photon leakage, on the entanglement of the two-qutrit state.
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| GB/T 7714 | Yang, Zhen-Biao , Ye, Sai-Yun , Serafini, Alessio et al. Distributed coherent manipulation of qutrits by virtual excitation processes [J]. | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS , 2010 , 43 (8) . |
| MLA | Yang, Zhen-Biao et al. "Distributed coherent manipulation of qutrits by virtual excitation processes" . | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS 43 . 8 (2010) . |
| APA | Yang, Zhen-Biao , Ye, Sai-Yun , Serafini, Alessio , Zheng, Shi-Biao . Distributed coherent manipulation of qutrits by virtual excitation processes . | JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS , 2010 , 43 (8) . |
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Abstract ：
An approach for realizing conditional phase gate for two atoms separately trapped in two distant cavities mediated by an optical fiber is proposed. Utilizing the adiabatic passage, the atomic spontaneous emission, and the decays of the fiber and cavities are avoided under certain condition. The effects of the losses in the fiber and cavities on the fidelity are analyzed. Moreover, our scheme is not restricted to Lamb-Dicke limit. We also generalize the approach to generate one-dimensional cluster state and entangled state for two collections of atoms. (C) 2007 Elsevier B.V. All rights reserved.
Keyword ：
adiabatic evolution adiabatic evolution cluster state cluster state entangled state entangled state optical fiber optical fiber phase gate phase gate
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| GB/T 7714 | Ye, Sal-Yun , Zheng, Shi-Blao . Scheme for reliable realization of quantum logic gates for two atoms separately trapped in two distant cavities via optical fibers [J]. | OPTICS COMMUNICATIONS , 2008 , 281 (5) : 1306-1311 . |
| MLA | Ye, Sal-Yun et al. "Scheme for reliable realization of quantum logic gates for two atoms separately trapped in two distant cavities via optical fibers" . | OPTICS COMMUNICATIONS 281 . 5 (2008) : 1306-1311 . |
| APA | Ye, Sal-Yun , Zheng, Shi-Blao . Scheme for reliable realization of quantum logic gates for two atoms separately trapped in two distant cavities via optical fibers . | OPTICS COMMUNICATIONS , 2008 , 281 (5) , 1306-1311 . |
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