Spectral-density estimation with the Gaussian integral transform
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DOI: 10.1103/physreva.102.022409
Abstract: The spectral density operator $\hat{\rho}(\omega)=\delta(\omega-\hat{H})$ plays a central role in linear response theory as its expectation value, the dynamical response function, can be used to compute scattering cross-sections. In this work, we describe a near… read more here.
Keywords: log left; spectral density; density; gaussian integral ... See more keywords