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<p>The squeezing operator plays a pivotal role in controlling the quadrature components of quantum fields, such as position and momentum, which are essential for precise state manipulation and information processing in continuous-variable quantum systems (CVQS). This research paper presents a theoretical framework establishing the relationship between laser pump power and the squeezing parameter, derived from quantum optical Hamiltonians. It further introduces a corrected analytical model to account for performance degradation at higher powers due to practical limitations. Additionally, a covariance matrix-based noise model is employed to characterise loss-induced squeezing degradation, offering a physically accurate alternative to the traditional additive noise assumptions. These findings are crucial for optimising the generation of squeezed states and enhancing the performance of quantum technologies, such as teleportation, sensing and communication.</p>

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Laser power-dependent squeezing in optical quadratures: insights for quantum information processing

  • 期刊论文

  • 发表日期：

    2026年3月17日

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  • Lokesh Sharma,
  • Priya Mudgal,
  • Shobha Sharma,
  • Deepti Sharma,
  • Debabrata Sikdar

摘要

The squeezing operator plays a pivotal role in controlling the quadrature components of quantum fields, such as position and momentum, which are essential for precise state manipulation and information processing in continuous-variable quantum systems (CVQS). This research paper presents a theoretical framework establishing the relationship between laser pump power and the squeezing parameter, derived from quantum optical Hamiltonians. It further introduces a corrected analytical model to account for performance degradation at higher powers due to practical limitations. Additionally, a covariance matrix-based noise model is employed to characterise loss-induced squeezing degradation, offering a physically accurate alternative to the traditional additive noise assumptions. These findings are crucial for optimising the generation of squeezed states and enhancing the performance of quantum technologies, such as teleportation, sensing and communication.