Results 31 to 40 of about 777,754 (321)
Excited-State Downfolding Using Ground-State Formalisms [PDF]
arXiv, 2023 Downfolding coupled cluster (CC) techniques are powerful tools for reducing the dimensionality of many-body quantum problems. This work investigates how ground-state downfolding formalisms can target excited states using non-Aufbau reference determinants, paving the way for applications of quantum computing in excited-state chemistry.
arxiv
Excitable Delaunay triangulations [PDF]
Kybernetes, 2011, Vol. 40 Iss: 5/6, pp.719 - 735, 2011 In an excitable Delaunay triangulation every node takes three states (resting, excited and refractory) and updates its state in discrete time depending on a ratio of excited neighbours. All nodes update their states in parallel. By varying excitability of nodes we produce a range of phenomena, including reflection of excitation wave from edge of ...
arxiv +1 more source
Nucleon Excited States on the Lattice [PDF]
Acta Physica Polonica B Proceedings Supplement, 2013 6 pages, 2 figures, talk presented at Excited QCD 2013, Bjelasnica Mountain ...
Christian B. Lang, V. Verduci
openaire +3 more sources
Excited Kinks as Quantum States
The European Physical Journal C, 2021 AbstractAt one loop, quantum kinks are described by a sum of quantum harmonic oscillator Hamiltonians, and so their spectra are known exactly. We find the first correction beyond one loop to the quantum states corresponding to kinks with an excited bound or unbound normal mode, and also the corresponding two-loop correction to the energy cost of ...
Evslin, Jarah, Guo, Hengyuan
openaire +4 more sources
Excited-state band structure mapping [PDF]
Physical Review B, 2022 Angle-resolved photoelectron spectroscopy is an extremely powerful probe of materials to access the occupied electronic structure with energy and momentum resolution. However, it remains blind to those dynamic states above the Fermi level that determine technologically relevant transport properties.
Puppin, M. +12 more
openaire +7 more sources
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Rydberg excitation through detuned microwave transition in rubidium [PDF]
arXiv, 2023 We study the excitation of Rydberg states in warm rubidium vapor. Using an inverted wavelength excitation scheme, we observe the effect of microwave coupling between Rydberg states through electromagnetically induced transparency. We observe AC stark shifts of the Rydberg states from the microwave coupling, and demonstrate detuned excitation to a ...
arxiv
Monopole Excitation to Cluster States [PDF]
Progress of Theoretical Physics, 2008 We discuss strength of monopole excitation of the ground state to cluster states in light nuclei. We clarify that the monopole excitation to cluster states is in general strong as to be comparable with the single particle strength and shares an appreciable portion of the sum rule value in spite of large difference of the structure between the cluster ...
Kiyomi Ikeda +5 more
openaire +4 more sources
Amide Activation in Ground and Excited States
Molecules, 2018 Not all amide bonds are created equally. The purpose of the present paper is the reinterpretation of the amide group by means of two concepts: amidicity and carbonylicity.
Ervin Kovács +4 more
doaj +1 more source