On simulating the dynamics of electronic populations and coherences via quantum master equations based on treating o -diagonal electronic coupling terms as a small perturbation

2021 ◽  
Author(s):  
Yifan Lai ◽  
Eitan Geva
Keyword(s):  
Small Perturbation ◽  
Master Equations ◽  
Electronic Coupling ◽  
Coupling Terms

Boltzmann and Master Equations for MHD in Weakly Ionized Air Plasmas

2008 ◽  
Author(s):  
Gianpiero Colonna ◽  
mario Capitelli ◽  
Lucia Daniela Pietanza ◽  
Annarita Casavola
Keyword(s):  
Master Equations ◽  
Air Plasmas ◽  
Weakly Ionized ◽  
Ionized Air

scholarly journals Thermochromic aggregation-induced dual phosphorescence via temperature-dependent sp3-linked donor-acceptor electronic coupling

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Tao Wang ◽  
Zhubin Hu ◽  
Xiancheng Nie ◽  
Linkun Huang ◽  
Miao Hui ◽  
...  
Keyword(s):  
Excited State ◽  
Room Temperature ◽  
Electronic Coupling ◽  
Temperature Dependent ◽  
Molecular Systems ◽  
Donor And Acceptor ◽  
Theoretical Investigations ◽  
Donor Acceptor ◽  
And Control ◽  
Two Temperature

AbstractAggregation-induced emission (AIE) has proven to be a viable strategy to achieve highly efficient room temperature phosphorescence (RTP) in bulk by restricting molecular motions. Here, we show that by utilizing triphenylamine (TPA) as an electronic donor that connects to an acceptor via an sp3 linker, six TPA-based AIE-active RTP luminophores were obtained. Distinct dual phosphorescence bands emitting from largely localized donor and acceptor triplet emitting states could be recorded at lowered temperatures; at room temperature, only a merged RTP band is present. Theoretical investigations reveal that the two temperature-dependent phosphorescence bands both originate from local/global minima from the lowest triplet excited state (T1). The reported molecular construct serves as an intermediary case between a fully conjugated donor-acceptor system and a donor/acceptor binary mix, which may provide important clues on the design and control of high-freedom molecular systems with complex excited-state dynamics.

scholarly journals Validity of Born-Markov master equations for single- and two-qubit systems

2021 ◽  
Vol 103 (21) ◽  
Author(s):  
Vasilii Vadimov ◽  
Jani Tuorila ◽  
Tuure Orell ◽  
Jürgen Stockburger ◽  
Tapio Ala-Nissila ◽  
...  
Keyword(s):  
Master Equations

scholarly journals Quantum thermodynamically consistent local master equations

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Adam Hewgill ◽  
Gabriele De Chiara ◽  
Alberto Imparato
Keyword(s):  
Master Equations

scholarly journals Some Special Types of Orbits around Jupiter

Aerospace ◽  
2021 ◽  
Vol 8 (7) ◽  
pp. 183
Author(s):  
Yongjie Liu ◽  
Yu Jiang ◽  
Hengnian Li ◽  
Hui Zhang
Keyword(s):  
Gravity Model ◽  
Small Perturbation ◽  
Equilibrium Points ◽  
Major Axis ◽  
Semi Major Axis ◽  
Ground Track ◽  
The Earth ◽  
Degenerate Equilibrium ◽  
The Mean ◽  
Element Theory

This paper intends to show some special types of orbits around Jupiter based on the mean element theory, including stationary orbits, sun-synchronous orbits, orbits at the critical inclination, and repeating ground track orbits. A gravity model concerning only the perturbations of J2 and J4 terms is used here. Compared with special orbits around the Earth, the orbit dynamics differ greatly: (1) There do not exist longitude drifts on stationary orbits due to non-spherical gravity since only J2 and J4 terms are taken into account in the gravity model. All points on stationary orbits are degenerate equilibrium points. Moreover, the satellite will oscillate in the radial and North-South directions after a sufficiently small perturbation of stationary orbits. (2) The inclinations of sun-synchronous orbits are always bigger than 90 degrees, but smaller than those for satellites around the Earth. (3) The critical inclinations are no-longer independent of the semi-major axis and eccentricity of the orbits. The results show that if the eccentricity is small, the critical inclinations will decrease as the altitudes of orbits increase; if the eccentricity is larger, the critical inclinations will increase as the altitudes of orbits increase. (4) The inclinations of repeating ground track orbits are monotonically increasing rapidly with respect to the altitudes of orbits.

A RELATIVISTIC EFFECTIVE MODEL WITH PARAMETERIZED COUPLINGS FOR NEUTRON STARS: THE ROLE OF ANTIKAON CONDENSATES

2011 ◽  
Vol 20 (supp02) ◽  
pp. 133-139
Author(s):  
ALEXANDRE MESQUITA ◽  
MOISÉS RAZEIRA ◽  
DIMITER HADJIMICHEF ◽  
CÉSAR A. Z. VASCONCELLOS ◽  
ROSANA O. GOMES ◽  
...  
Keyword(s):  
Neutron Stars ◽  
Coupling Constants ◽  
Effective Model ◽  
Extended Model ◽  
Many Body ◽  
Parametric Dependence ◽  
Interaction Terms ◽  
Coupling Terms ◽  
Effective Models

We study the effects of antikaon condensates in neutron stars in the framework of a relativistic effective model with derivative couplings which includes genuine many-body forces simulated by nonlinear interaction terms involving scalar-isoscalar (σ, σ*), vector-isoscalar (ω, ɸ), vector-isovector (ϱ), scalar-isovector (δ) mesons. The effective model presented in this work has a philosophy quite similar to the original version of the model with parameterized couplings. But unlike that, in which the parametrization is directly inserted in the coupling constants of the Glendenning model, we present here a method for the derivation of the parametric dependence of the coupling terms, in a way that allows in one side to consistently justify this parametrization and in the other to extend in a coherent way the range of possibilities of parameterizations in effective models with derivative couplings. The extended model is then applied to the description of the mass of neutron stars.

Permanent Dipole Moments Enhance Electronic Coupling and Singlet Fission in Pentacene

2021 ◽  
pp. 7453-7458
Author(s):  
Clemens Zeiser ◽  
Luca Moretti ◽  
Thomas Geiger ◽  
Lukas Kalix ◽  
Ana M. Valencia ◽  
...  
Keyword(s):  
Dipole Moments ◽  
Electronic Coupling ◽  
Singlet Fission

Tuning p-Si(111) Photovoltage via Molecule|Semiconductor Electronic Coupling

2021 ◽  
Vol 143 (6) ◽  
pp. 2567-2580
Author(s):  
Dylan G. Boucher ◽  
Kara Kearney ◽  
Elif Ertekin ◽  
Michael J. Rose
Keyword(s):  
Electronic Coupling ◽  
Semiconductor Electronic
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