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Nonlinear response ...
Nonlinear response theory with relaxation : The first-order hyperpolarizability
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- Norman, Patrick (författare)
- Linköpings universitet,Tekniska högskolan,Beräkningsfysik
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- Bishop, D. M. (författare)
- University of Ottawa, Ontario
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- Jensen, H.J.A (författare)
- University of Southern Denmark, Odense
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- Oddershede, J. (författare)
- University of Southern Denmark, Odense
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(creator_code:org_t)
- American Institute of Physics (AIP), 2005
- 2005
- Engelska.
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Ingår i: Journal of Chemical Physics. - : American Institute of Physics (AIP). - 0021-9606 .- 1089-7690. ; 123:19
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Based on the Ehrenfest theorem, an equation of motion that takes relaxation into account has been presented in wave-function theory, and the resulting response functions are nondivergent in the off-resonant as well as the resonant regions of optical frequencies. The derivation includes single- and multideterminant reference states. When applied to electric dipole properties, the response functions correspond to the phenomenological sum-over-states expressions of Orr and Ward [Mol. Phys. 20, 513 (1971)] for polarizabilities and hyperpolarizabilities of an isolated system. A universal dispersion formula is derived for the complex second-order response function. Response theory calculations are performed on lithium hydride and para-nitroaniline for off-resonant and resonant frequencies in the electro-optical Kerr effect and second-harmonic generation.
Ämnesord
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
Nyckelord
- Ehrenfest theorem
- Hyperpolarizability
- Nonlinear response theory
- Sum-over-states
- Optical Kerr effect
- Polarization
- Relaxation processes
- Second harmonic generation
- Theorem proving
- Wave equations
- Equations of motion
- NATURAL SCIENCES
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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