Linear Boltzmann equation as the weak coupling limit of a random Schrödinger equation

Linear Boltzmann equation as the weak coupling limit of a random Schrödinger equation
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线性玻尔兹曼方程作为随机薛定谔方程的弱耦合极限

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发表时间:
2013
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通讯作者:
H. Yau
H. Yau
中科院分区:
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文献类型:
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作者:
H. Yau

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我们研究高斯随机环境中量子粒子的时间演化。我们证明,在弱耦合极限下,波函数的维格纳分布及时收敛到线性玻尔兹曼方程的解。玻尔兹曼碰撞核由量子微分散射截面的玻恩近似给出。
We study the time evolution of a quantum particle in a Gaussian random environment. We show that in the weak coupling limit the Wigner distribution of the wave function converges to a solution of a linear Boltzmann equation globally in time. The Boltzmann collision kernel is given by the Born approximation of the quantum differential scattering cross section.