Related papers: Cubic nonlinear squeezing and its decoherence

Cubic nonlinear squeezing and its decoherence

URL: http://arxiv.org/abs/2107.06036v2
Date: Tue, 26 Apr 2022 09:43:41 GMT
Title: Cubic nonlinear squeezing and its decoherence
Authors: Vojt\v{e}ch Kala, Petr Marek and Radim Filip
Abstract summary: We analyze the behavior of quantum states with cubic nonlinear squeezing under loss and dephasing. The properties of nonlinear squeezed states depend on their initial parameters which can be optimized and adjusted to achieve the maximal robustness for the potential applications.
Score: 1.2891210250935146
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Squeezed states of the harmonic oscillator are a common resource in applications of quantum technology. If the noise is suppressed in a nonlinear combination of quadrature operators below threshold for all possible up-to-quadratic Hamiltonians, the quantum states are non-Gaussian and we refer to the noise reduction as nonlinear squeezing. Non-Gaussian aspects of quantum states are often more vulnerable to decoherence due to imperfections appearing in realistic experimental implementations. Therefore, a stability of nonlinear squeezing is essential. We analyze the behavior of quantum states with cubic nonlinear squeezing under loss and dephasing. The properties of nonlinear squeezed states depend on their initial parameters which can be optimized and adjusted to achieve the maximal robustness for the potential applications.

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