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  1. Vor einem Tag · We calculate nonperturbative self-consistent fermionic and bosonic spectral functions of ultracold Fermi gases with the spectral functional approach. This approach allows for a direct real-time computation of nonperturbative correlation functions, and in the present work we use spectral Dyson-Schwinger equations. We focus on the normal phase of the spin-balanced Fermi gas and provide numerical ...

  2. en.wikipedia.org › wiki › Planck's_lawPlanck's law - Wikipedia

    Vor 4 Tagen · Planck's law describes the unique and characteristic spectral distribution for electromagnetic radiation in thermodynamic equilibrium, when there is no net flow of matter or energy. [2] Its physics is most easily understood by considering the radiation in a cavity with rigid opaque walls.

  3. Vor 5 Tagen · The limit of the empirical spectral measure of invariant matrix ensembles is described by a certain integral equation which arises from potential theory. Fluctuations. For the linear statistics N f,H = n −1 Σ f(λ j), one is also interested in the fluctuations about ∫ f(λ) dN(λ). For many classes of random matrices, a central limit ...

  4. Vor 2 Tagen · The dynamics of the nuclei of both a chromophore and its condensed-phase environment control many spectral features, including the vibronic and inhomogeneous broadening present in spectral line shapes. For the cresyl violet chromophore in methanol, we here analyze and isolate the effect of specific chromophore–solvent interactions on simulated spectral densities, reorganization energies, and ...

  5. Vor einem Tag · This early enhancement of saliency reliant on spectral features was not observed in the auditory thalamus or cortex. (3) Untuned neurons form an accessory, “nonspectral” PE signaling system, which reports all surprising auditory deviances in a robust and consistent manner, resembling nonlemniscal neurons in the auditory cortex. These nonlemniscal IC neurons show unstructured and unstable ...

  6. Vor 5 Tagen · Contrast-enhanced spectral mammography (CEM) is increasingly recognized as a powerful diagnostic tool in breast imaging. CEM relies on similar principles as breast MRI, highlighting cancer by IV contrast, thereby bypassing the limitation of dense breast tissue. Possible applications of CEM are problem solving and screening in women with dense ...

  7. Vor einem Tag · Spectral sequences via linear presheaves. Muriel Livernet, Sarah Whitehouse. We study homotopy theory of the category of spectral sequences with respect to the class of weak equivalences given by maps which are quasi-isomorphisms on a fixed page. We introduce the category of extended spectral sequences and show that this is bicomplete by ...

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