Non-Markovian corrections to quantum regression theorem for the strong coupling spin-boson model

The energy states for the J , b , ɤ bands and electromagnetic transitions B (E2) values for even – even molybdenum 90 – 94 Mo nuclei are calculated in the present work of "the interacting boson model (IBM-1)" . The parameters of the equation of IBM-1 Hamiltonian are determined which yield the best excellent suit the experimental energy states . The positive parity of energy states are obtained by using IBS1. for program for even 90 – 94 Mo isotopes with bosons number 5 , 4 and 5 respectively. The" reduced transition probability B(E2)" of these neuclei are calculated and compared with the experimental data . The ratio of the excitation energies of the 41+ to 21+ states ( R4/2) are also calculated . The calculated and experimental (R4/2) values showed that the 90 – 94 Mo nuclei have the vibrational dynamical symmetry U(5). Good agreement was found from comparison between the calculated energy states and electric quadruple probabilities B(E2) transition of the 90–94Mo isotopes with the experimental data .

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Exchange-Correlation Energy Densities and Response Potentials: Connection Between Two Definitions and Analytical Model for the Strong-Coupling Limit of a Stretched Bond

10.26434/chemrxiv.10283678.v1 ◽

2019 ◽

Author(s):

S. Giarrusso ◽

Paola Gori-Giorgi

Keyword(s):

Density Functional Theory ◽

Strong Coupling ◽

Density Functional ◽

Correlation Energy ◽

Order Term ◽

Strong Coupling Limit ◽

Local Form ◽

Coupling Constant ◽

Functional Theory ◽

Exchange Correlation

We analyze in depth two widely used definitions (from the theory of conditional probablity amplitudes and from the adiabatic connection formalism) of the exchange-correlation energy density and of the response potential of Kohn-Sham density functional theory. We introduce a local form of the coupling-constant-dependent Hohenberg-Kohn functional, showing that the difference between the two definitions is due to a corresponding local first-order term in the coupling constant, which disappears globally (when integrated over all space), but not locally. We also design an analytic representation for the response potential in the strong-coupling limit of density functional theory for a model single stretched bond.<br>

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Strong Coupling Effects on Bound States in Plasmas.

10.21236/ada154353 ◽

1985 ◽

Author(s):

G. J. Kalman

Keyword(s):

Strong Coupling ◽

Bound States ◽

Coupling Effects

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Determination of the Strong Coupling Constant ($\alpha_s$) and a Test of Perturbative QCD Using $W +$ Jets Processes in the D0 Detector

10.2172/1425601 ◽

1993 ◽

Author(s):

Jaehoon Yu

Keyword(s):

Perturbative Qcd ◽

Strong Coupling ◽

Strong Coupling Constant ◽

Coupling Constant ◽

D0 Detector

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Strong Coupling: Polariton Bose Condensation

10.1093/oso/9780198782995.003.0008 ◽

2017 ◽

Author(s):

Alexey V. Kavokin ◽

Jeremy J. Baumberg ◽

Guillaume Malpuech ◽

Fabrice P. Laussy

Keyword(s):

Strong Coupling ◽

Room Temperature ◽

Elevated Temperatures ◽

Dissipative System ◽

Bose Condensation ◽

Einstein Condensation ◽

Strong Coupling Regime ◽

Stimulated Scattering ◽

Exciton Polaritons ◽

Bose Einstein

In this Chapter we address the physics of Bose-Einstein condensation and its implications to a driven-dissipative system such as the polariton laser. We discuss the dynamics of exciton-polaritons non-resonantly pumped within a microcavity in the strong coupling regime. It is shown how the stimulated scattering of exciton-polaritons leads to formation of bosonic condensates that may be stable at elevated temperatures, including room temperature.

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Strong coupling: resonant effects

10.1093/oso/9780198782995.003.0007 ◽

2017 ◽

Author(s):

Alexey V. Kavokin ◽

Jeremy J. Baumberg ◽

Guillaume Malpuech ◽

Fabrice P. Laussy

Keyword(s):

Strong Coupling ◽

Experimental Studies ◽

Strong Coupling Regime ◽

Theoretical Studies ◽

Stimulated Scattering ◽

Quantum Theories ◽

Pump Probe ◽

Exciton Polaritons ◽

Linear Optical Properties ◽

Experimental And Theoretical Studies

This chapter presents experimental studies performed on planar semiconductor microcavities in the strong-coupling regime. The first section reviews linear experiments performed in the 1990s that evidence the linear optical properties of cavity exciton-polaritons. The chapter is then focused on experimental and theoretical studies of resonantly excited microcavity emission. We mainly describe experimental configuations in which stimulated scattering was observed due to formation of a dynamical condensate of polaritons. Pump-probe and cw experiments are described in addition. Dressing of the polariton dispersion and bistability of the polariton system due to inter-condensate interactions are discussed. The semiclassical and the quantum theories of these effects are presented and their results analysed. The potential for realization of devices is also discussed.

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