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  • Huang, Sumei  (8)
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  • 1
    Online Resource
    Online Resource
    Optomechanically Induced Transparency in Optomechanical System with a Cubic Anharmonic Oscillator
    MDPI AG ; 2023
    In:  Photonics Vol. 10, No. 4 ( 2023-04-05), p. 407-
    Details
    In: Photonics, MDPI AG, Vol. 10, No. 4 ( 2023-04-05), p. 407-
    Abstract: In this paper, we studied the optomechanically induced transparency (OMIT) in a cavity optomechanical system containing a cubic nonlinear oscillator. In our system, a partially transparent, dielectric membrane was placed in the middle of the F-P cavity. Due to the partial transmission and reflective property of the membrane, the membrane was combined with both the mirrors on the left and right sides to form two cavities. When the system was driven by two coupling fields, we calculated the quantum fluctuation of the optomechanical system operators and showed the response of the cavity optomechanical system to the probe field. We found that the cubic nonlinearity led to a shift of the OMIT window, which moved towards a frequency less than the resonance frequency, and the absorption peak became significantly asymmetrical when OMIT appeared. The shift of the OMIT dip provided a method to detect the nonlinear effects of the system due to the existence of cubic anharmonic potential.
    Type of Medium: Online Resource
    ISSN: 2304-6732
    URL: Article
    DOI: 10.3390/photonics10040407
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2770002-1
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  • 2
    Online Resource
    Online Resource
    Enhancing the Steady-State Entanglement between a Laguerre–Gaussian-Cavity Mode and a Rotating Mirror via Cross-Kerr Nonlinearity
    MDPI AG ; 2023
    In:  Photonics Vol. 10, No. 9 ( 2023-08-30), p. 986-
    Details
    In: Photonics, MDPI AG, Vol. 10, No. 9 ( 2023-08-30), p. 986-
    Abstract: Quantum entanglement will play an important role in future quantum technologies. Here, we theoretically study the steady-state entanglement between a cavity field and a macroscopic rotating mirror in a Laguerre–Gaussian-(LG)-cavity optomechanical system with cross-Kerr nonlinearity. Logarithmic negativity is used to quantify the steady-state entanglement between the cavity and mechanical modes. We analyze the impacts of the cross-Kerr coupling strength, the cavity detuning, the input laser power, the topological charge of the LG-cavity mode, and the temperature of the environment on the steady-state optomechanical entanglement. We find that cross-Kerr nonlinearity can significantly enhance steady-state optomechanical entanglement and make steady-state optomechanical entanglement more robust against the temperature of the thermal environment.
    Type of Medium: Online Resource
    ISSN: 2304-6732
    URL: Article
    DOI: 10.3390/photonics10090986
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2770002-1
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  • 3
    Online Resource
    Online Resource
    Stationary Entanglement between Two Rotating Mirrors in a Laguerre–Gaussian Rotational‐Cavity Optomechanical System with an Optical Parametric Amplifier
    Wiley ; 2022
    In:  Annalen der Physik Vol. 534, No. 9 ( 2022-09)
    Details
    In: Annalen der Physik, Wiley, Vol. 534, No. 9 ( 2022-09)
    Abstract: Generation of entanglement between macroscale mechanical oscillators is challenging yet important for future quantum technologies. Here, the possibility of creating a steady‐state entanglement between two rotating mirrors in a Laguerre–Gaussian (LG) rotational‐cavity optomechanical system by placing an especially tuned degenerate optical parametric amplifier (OPA) inside the cavity is theoretically explored. In the resolved‐sideband regime, a LG cavity mode is driven by a Gaussian laser beam tuned to the first lower mechanical sideband. The Duan quantity and the logarithmic negativity is used to study the stationary entanglement between two rotating mirrors. The influence of the parametric gain and phase of the OPA, the input laser power, the temperature of the environment, and the topological charge of the LG cavity mode on the mechanical entanglement are investigated. The achievable maximal degree of entanglement is limited by the parametric gain of the OPA.
    Type of Medium: Online Resource
    ISSN: 0003-3804 , 1521-3889
    URL: Issue
    URL: Article
    DOI: 10.1002/andp.v534.9
    DOI: 10.1002/andp.202200171
    RVK:
    UA 2050
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1479791-4
    detail.hit.zdb_id: 2165600-9
    detail.hit.zdb_id: 287-2
    SSG: 25
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    Online Resource
  • 4
    Online Resource
    Online Resource
    Improving the Stochastic Feedback Cooling of a Mechanical Oscillator Using a Degenerate Parametric Amplifier
    MDPI AG ; 2022
    In:  Photonics Vol. 9, No. 4 ( 2022-04-16), p. 264-
    Details
    In: Photonics, MDPI AG, Vol. 9, No. 4 ( 2022-04-16), p. 264-
    Abstract: Cooling of a macroscopic mechanical resonator to extremely low temperatures is a necessary condition to observe a variety of macroscopic quantum phenomena. Here, we study the stochastic feedback cooling of a mechanical resonator in an optomechanical system with a degenerate optical parametric amplifier (OPA). In the bad-cavity limit, we find that the OPA can enhance the cooling of the movable mirror in the stochastic feedback cooling scheme. The movable mirror can be cooled from 132 mK to 0.033 mK, which is lower than that without the OPA by a factor of about 5.
    Type of Medium: Online Resource
    ISSN: 2304-6732
    URL: Article
    DOI: 10.3390/photonics9040264
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2770002-1
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  • 5
    Online Resource
    Online Resource
    Electromagnetically induced transparency with quantized fields in a dissipative optomechanical system
    American Physical Society (APS) ; 2023
    In:  Physical Review A Vol. 107, No. 1 ( 2023-1-26)
    Details
    In: Physical Review A, American Physical Society (APS), Vol. 107, No. 1 ( 2023-1-26)
    Type of Medium: Online Resource
    ISSN: 2469-9926 , 2469-9934
    URL: Article
    DOI: 10.1103/PhysRevA.107.013524
    RVK:
    UA 6500.3A
    Language: English
    Publisher: American Physical Society (APS)
    Publication Date: 2023
    detail.hit.zdb_id: 2844156-4
    detail.hit.zdb_id: 209769-2
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  • 6
    Online Resource
    Online Resource
    Squeezed States of Magnons and Phonons in a Cavity Magnomechanical System with a Microwave Parametric Amplifier
    Wiley ; 2023
    In:  Annalen der Physik Vol. 535, No. 7 ( 2023-07)
    Details
    In: Annalen der Physik, Wiley, Vol. 535, No. 7 ( 2023-07)
    Abstract: The cavity magnomechanical system has become a promising platform for preparing macroscopic quantum states. In this work, a scheme for generating the steady‐state quadrature squeezing of the magnon and phonon modes in a cavity magnomechanical system is presented. This scheme uses a degenerate microwave parametric amplifier (PA) inside the microwave cavity. It is found that the squeezing of the cavity mode produced by the PA can be transferred to the magnon mode due to the cavity‐magnon beamsplitter‐like interaction, and the squeezing of the magnon mode can be further transferred to the phonon mode due to the magnon‐phonon beamsplitter‐like interaction induced by driving the magnon mode with a red‐detuned microwave field. The effects of the parametric gain and phase of the PA, the magnon‐cavity coupling strength, the power of the magnon drive, and the temperature of the environment on the squeezing of the magnon and phonon modes have been evaluated. The results show that the squeezing of the magnon and phonon modes is robust against the temperature of the environment.
    Type of Medium: Online Resource
    ISSN: 0003-3804 , 1521-3889
    URL: Issue
    URL: Article
    DOI: 10.1002/andp.v535.7
    DOI: 10.1002/andp.202300095
    RVK:
    UA 2050
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 1479791-4
    detail.hit.zdb_id: 2165600-9
    detail.hit.zdb_id: 287-2
    SSG: 25
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    Online Resource
  • 7
    Online Resource
    Online Resource
    Enhanced Entanglement of the Two Cavity Modes in the Laguerre–Gaussian Cavity Optorotating System via an Optical Parametric Amplifier
    MDPI AG ; 2023
    In:  Photonics Vol. 10, No. 8 ( 2023-08-11), p. 926-
    Details
    In: Photonics, MDPI AG, Vol. 10, No. 8 ( 2023-08-11), p. 926-
    Abstract: Quantum entanglement in macroscopic systems plays an important role in quantum information processing. Here, we show that the steady-state entanglement between the two cavity modes in the macroscopic Laguerre–Gaussian (L–G) cavity optorotating system can be enhanced by placing a degenerate optical parametric amplifier (OPA) inside the cavity. The two L–G cavity modes are coupled to the same rotating mirror and are respectively driven at the red and blue mechanical sidebands. We use the logarithmic negativity to quantify the steady-state entanglement between the two cavity modes. We study the influences of the nonlinear gain and phase of the OPA, the temperature of the environment, and the angular momentums of the two cavity modes on the entanglement between the two cavity modes. In the cryogenic environment temperatures, when the angular momentums of the two cavity modes are identical, the enhancement of the entanglement between the two cavity modes by the OPA is the most significant.
    Type of Medium: Online Resource
    ISSN: 2304-6732
    URL: Article
    DOI: 10.3390/photonics10080926
    Language: English
    Publisher: MDPI AG
    Publication Date: 2023
    detail.hit.zdb_id: 2770002-1
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  • 8
    Online Resource
    Online Resource
    Cooling a Rotating Mirror Coupled to a Single Laguerre–Gaussian Cavity Mode Using Parametric Interactions
    MDPI AG ; 2022
    In:  Nanomaterials Vol. 12, No. 20 ( 2022-10-21), p. 3701-
    Details
    In: Nanomaterials, MDPI AG, Vol. 12, No. 20 ( 2022-10-21), p. 3701-
    Abstract: We study the cooling of a rotating mirror coupled to a Laguerre–Gaussian (L–G) cavity mode, which is assisted by an optical parametric amplifier (OPA). It is shown that the presence of the OPA can significantly lower the temperature of the rotating mirror, which is very critical in the application of quantum physics. We also find that the increase in angular momentum has an influence on the cooling of the rotating mirror. Our results may provide a potential application in the determination of the orbital angular momentum of light fields and precision measurement.
    Type of Medium: Online Resource
    ISSN: 2079-4991
    URL: Article
    DOI: 10.3390/nano12203701
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2662255-5
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