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Quantum transport in chains with noisy off-diagonal couplings

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 نشر من قبل Andrey Pereverzev
 تاريخ النشر 2005
  مجال البحث فيزياء
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We present a model for conductivity and energy diffusion in a linear chain described by a quadratic Hamiltonian with Gaussian noise. We show that when the correlation matrix is diagonal, the noise-averaged Liouville-von Neumann equation governing the time-evolution of the system reduces to the Lindblad equation with Hermitian Lindblad operators. We show that the noise-averaged density matrix for the system expectation values of the energy density and the number density satisfy discre

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