Results 21 to 30 of about 777,754 (321)
Targeted excited state algorithms [PDF]
The Journal of Chemical Physics, 2007 To overcome the limitations of the traditional state-averaging approaches in excited state calculations, where one solves and represents all states between the ground state and excited state of interest, we have investigated a number of new excited state algorithms. Building on the work of van der Vorst and Sleijpen [SIAM J. Matrix Anal. Appl. 17, 401 (
Dorando, Jonathan J. +2 more
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Nanomaterials, 2023 Photo-controlled self-assembly of nanoparticles (NPs) is an advanced and promising approach to address a series of material issues from the molecular level to the nano/micro scale, owing to the fact that light stimulus is typically precise and rapid, and
Juntan Li, Xiaoyong Jia
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Excited Binomial States and Excited Negative Binomial States of the Radiation Field and Some of their Statistical Properties [PDF]
Int.J.Theor.Phys.39:1437-1444,2000, 1999 We introduce excited binomial states and excited negative binomial states of the radiation field by repeated application of the photon creation operator on binomial states and negative binomial states. They reduce to Fock states and excited coherent states in certain limits and can be viewed as intermediate states between Fock states and coherent ...
arxiv +1 more source
Some applications of excited-state-excited-state transition densities [PDF]
Physical Review A, 1975 We derive an approximation for transition moments between excited states consistent with the approximations and assumptions normally used to obtain transition moments betwen the ground and excited states in the random-phase approximation and its higher-order approximations. We apply the result to the calculation of the photoionization cross sections of
Yeager, D. L. +2 more
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Excited states of zero seniority based on a pair condensate [PDF]
, 2022 We study the excited states of zero seniority for various like-particle systems interacting by pairing forces and by general two-body interactions. We consider two types of excitations, generated from a ground state described by a pair condensate. One type is obtained by breaking a pair from the ground state condensate and replacing it by "excited ...
arxiv +1 more source
23Na relaxometry: An overview of theory and applications
Magnetic Resonance Letters, 2023 23Na is a nuclear magnetic resonance (NMR)-active isotope with a nuclear spin quantum number of 3/2. 23Na relaxation phenomenon is at the core of 23Na NMR measurement and analysis.
Yifan Song +4 more
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Targeting excited states in all-trans polyenes with electron-pair states [PDF]
J. Chem. Phys. 145, 234105 (2016), 2019 Wavefunctions restricted to electron pair states are promising models for strongly-correlated systems. Specifically, the pair Coupled Cluster Doubles (pCCD) ansatz allows us to accurately describe bond dissociation processes and heavy-element containing compounds with multiple quasi-degenerate single-particle states.
arxiv +1 more source
Advances in Physics: X, 2022 Ultrafast optical spectroscopy delivers unparalleled insights into the dynamic response of photoactive materials, including semiconducting, photonic and phase-change materials.
Ronnie R. Tamming +2 more
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Excited states of holographic superconductors [PDF]
Journal of High Energy Physics, 2020 Abstract In this paper we re-investigate the model of the anti-de Sitter gravity coupled to Maxwell and charged scalar fields, which has been studied as the gravitational dual to a superconductor for a long time since the famous work [Phys. Rev. Lett. 101 (2008) 031601]. By numerical method, we present a novel family of
Yong-Qiang Wang +4 more
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Advanced Sensor and Energy Materials, 2022 As one of most advanced transduction techniques, electrochemiluminescence (ECL), such as that generated by tris(2,2′-bipyridyl)ruthenium (Ru(bpy)32+), has been extensively used in chemical sensing and analysis, but the reaction mechanism has not been ...
Wen-Xuan Fu +3 more
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