Coupling state

As written, Eq. (52) depends on all the (infinite number of) adiabatic electi onic states. Fortunately, the inverse dependence of the coupling strength on energy separation means that it is possible to separate the complete set of states into manifolds that effeetively do not interact with one another. In particular, Baer has recendy shown [54] that Eq. (57), and hence Eq. (58) also holds in the subset of mutually coupled states. This finding has important consequences for the use of diabatic states explored below. 

While this derivation uses a complete set of adiabatic states, it has been shown [54] that this equation is also valid in a subset of mutually coupled states that do not interact with the other states. 

In constitutively active receptor systems (where the baseline is elevated due to spontaneous formation of receptor active states, see Chapter 3 for full discussion), unless the antagonist has identical affinities for the inactive receptor state, the spontaneously formed active state, and the spontaneously G-protein coupled state (three different receptor conformations, see discussion in Chapter 1 on receptor conformation) it will alter the relative concentrations of these species—and in so doing alter the baseline response. If the antagonist has higher affinity for the... 

Gianturco F. A., Serna S., Sanna N. Dynamical decoupling in the quantum calculations of transport coefficients. I. Coupled state results for He-N2 gaseous mixture, Mol. Phys. 74, 1071-87 (1991). 

For reference purposes, we consider first adiabatic population transfer in a subset of three states decoupled from the full manifold of states. This adiabatic transfer can be driven by STIRAP. The subset of states we consider consists of 1200000), 1300000) and 200020), and the population transfer is from 200000) to 1200020). In the following paragraph, we refer to these states as 11), 5 ), and 6), respectively. We note that state 210011) with energy 5658.1828 cm is nearly degenerate with state 1200020) with energy 5651.5617 cm . We refer to 1210011) as state 9). Since the transition moment coupling states 11) and 6) is one order of... 

One can see that E is a vector, whereas B is a pseudovector, that is, E changes sign upon inversion of the coordinate system, while B remains unchanged. As a consequence, electric-field-induced interactions couple states of different parity, while interactions induced by the magnetic field conserve parity. Thus, parity remains a good quantum number for quantum systems in a magnetic field. 

The numerical computations of the cross sections for molecular collisions in fields are demanding. Part of the complexity is due to the fact that most molecules of interest are open-shell radicals, so the basis for the coupled channel calculations must include multiple angular momentum states. In addition, the interactions of the molecules with an external field couple states with different total angular momenta. Note that in the presence of a single, axially symmetric field, the... 

Addition of NO to oxidized cytochrome oxidase produces a state in which NO binds to the copper center rather than to the heme (Brudvig et al., 1980. The Cu(Il)-NO complex is diamagnetic EPR signals can be observed at g = 6 which probably result from the ferric heme a, now uncoupled from Cu(ll). It is also possible to assign these signals to some S = f coupled state involving both iron and cooper, but this is much less likely. 

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