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Achieving the Ground State and Enhancing Optomechanical Entanglement

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Exploring Macroscopic Quantum Mechanics in Optomechanical Devices

Part of the book series: Springer Theses ((Springer Theses))

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Abstract

In the previous chapter, we have seen that in order to achieve the quantum ground state of a mechanical oscillator, with three-mode or even general optomechanical devices, the cavity bandwidth needs to be smaller than the mechanical frequency. This is the so-called resolved-sideband or good-cavity limit. In this chapter, we provide a new but physically equivalent insight into the origin of such a limit: that is information loss due to a finite cavity bandwidth.

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Notes

  1. 1.

    There is a factor of two difference in defining the cavity bandwidth here compared with the one defined in Ref. [33].

  2. 2.

    For simplicity, we use the same \(\hat o\) to denote its perturbed part.

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  1. Caltech M350-17, Theoretical Astrophysics, E. California Blvd 1200, Pasadena, CA, 91125, USA

    Haixing Miao

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Miao, H. (2012). Achieving the Ground State and Enhancing Optomechanical Entanglement. In: Exploring Macroscopic Quantum Mechanics in Optomechanical Devices. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25640-0_7

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  • DOI: https://doi.org/10.1007/978-3-642-25640-0_7

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