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arXiv 1005.4572quant-ph
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非马尔可夫主方程的层析方法

A tomographic approach to non-Markovian master equations

Bruno Bellomo, Antonella De Pasquale, Giulia Gualdi, Ugo Marzolino

摘要:

我们提出了一个基于辛层析重建的无卷积非马尔可夫高斯噪声演化的未知参数的过程。每当时间相关的主方程系数作为一些未知的时间无关的参数的函数给出,我们表明,这些参数可以通过有限数量的断层图像重建。两种不同的重建方法,积分和微分,并施加到一个基准模型的谐振子耦合到玻色子浴。对于这个模型的数量的断层图像需要检索的未知参数显式计算。

英文摘要:

We propose a procedure based on symplectic tomography for reconstructing the unknown parameters of a convolutionless non-Markovian Gaussian noisy evolution. Whenever the time-dependent master equation coefficients are given as a function of some unknown time-independent parameters, we show that these parameters can be reconstructed by means of a finite number of tomograms. Two different approaches towards reconstruction, integral and differential, are presented and applied to a benchmark model made of a harmonic oscillator coupled to a bosonic bath. For this model the number of tomograms needed to retrieve the unknown parameters is explicitly computed.

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