作者: 煞費(fèi)苦心 時(shí)間: 2025-3-21 23:30 作者: 燒烤 時(shí)間: 2025-3-22 00:28
,Non-Markovian Kinetic Equations with?Selfenergy,ovian kinetic equations of the Boltzmann type. This was discussed already in Chap.?., but here we present a more detailed analysis that allows to include memory effects approximately via a retardation expansion.作者: 江湖郎中 時(shí)間: 2025-3-22 07:42
,Random Phase Approximation,ollective modes that were discussed in Chap.?. are properly “built-in” into the renormalized interaction potential. We present the non-Markovian generalization of the RPA that directly yields an equation of motion of the screened potential . with the inverse dielectric function .. The solution for .作者: 前奏曲 時(shí)間: 2025-3-22 10:01 作者: CHURL 時(shí)間: 2025-3-22 14:23 作者: 過剩 時(shí)間: 2025-3-22 17:35 作者: 淡紫色花 時(shí)間: 2025-3-23 00:01
The Method of Reduced Density Operators,ework of reduced density operators. It gives a complete treatment of the subject how to come from (reversible) dynamic equations for the N-particle wave function to a set of equations for the statistical operators—the famous BBGKY-hierarchy. After a discussion of the main properties of the hierarchy作者: browbeat 時(shí)間: 2025-3-23 02:06
,Correlations Due to the Spin Statistics,ed (for bosons) or anti-symmetrized (for fermions) following an idea of Dufty and Boercker in [102]. This directly yields key quantities such as the Hartree-Fock mean field, Pauli blocking factors (for fermions) and many-body renormalized pair potentials. The final results are the properly (anti-)sy作者: 與野獸博斗者 時(shí)間: 2025-3-23 07:40 作者: Keshan-disease 時(shí)間: 2025-3-23 10:02
Correlations and Their Dynamics,ng from the shortest times (time scale?. of the formation of pair correlations), over the single-particle relaxation scale to the macroscopic scale of hydrodynamic quantities. The short times are crucial in the context of ultrafast excitation of many-body systems, so a key requirement for the theory作者: Vulnerary 時(shí)間: 2025-3-23 14:52 作者: 小歌劇 時(shí)間: 2025-3-23 20:44
,Non-Markovian Kinetic Equations with?Selfenergy,or the selfenergy of nonequilibrium Green functions theory (NEGF) that are subject of Chap.?.. The key difference lies in additional renormalization effects characteristic for NEGF. In this chapter we demonstrate how the SBA of NEGF can be recovered in density operator theory and give the appropriat作者: agglomerate 時(shí)間: 2025-3-24 01:48 作者: BROW 時(shí)間: 2025-3-24 04:49 作者: 新鮮 時(shí)間: 2025-3-24 07:36
,Random Phase Approximation,cond Born approximation of Chap.?. and the T-matrix approximation of Chap.?.): the random phase approximation (RPA). Related terms that are often used include “GW approximation” (condensed matter physics) or polarization approximation leading to the Balescu-Lenard kinetic equation (plasma physics). 作者: 過于光澤 時(shí)間: 2025-3-24 11:40
,Dynamically Screened Ladder Approximation,-matrix) effects with long-range (dynamical screening) phenomena that were discussed separately in Chaps.?. and?., respectively. We present the relevant closure approximation for the BBGKY-hierarchy and the solution for the pair correlation operator and the resulting quantum kinetic equation. We con作者: 持續(xù) 時(shí)間: 2025-3-24 14:56 作者: stratum-corneum 時(shí)間: 2025-3-24 21:00 作者: 頌揚(yáng)本人 時(shí)間: 2025-3-25 02:24
Conclusion,es in femtosecond laser technology, even small laboratories are now aquiring the ability to directly study the behavior of atoms and charged particles under a very broad range of excitation conditions. The observed phenomena include coherent effects, collective plasma oscillations, transport process作者: 藕床生厭倦 時(shí)間: 2025-3-25 04:08
librium Green functions.Covers modern time-dependent many-bo.This book presents quantum kinetic theory in a comprehensive way. The focus is on density operator methods and on non-equilibrium Green functions. The theory allows to rigorously treat nonequilibrium dynamics in quantum many-body systems. 作者: 全面 時(shí)間: 2025-3-25 10:45 作者: SPASM 時(shí)間: 2025-3-25 14:18 作者: APEX 時(shí)間: 2025-3-25 17:13
Conclusion,es and optical response up to relativistic energies. Not only the more traditional questions of quasi–stationary behavior can be studied, but also transient processes on the scale of a few femtoseconds.作者: Irrigate 時(shí)間: 2025-3-25 20:17 作者: 集中營 時(shí)間: 2025-3-26 02:26
Introduction,s is illustrated on an example from semiconductor optics in Sect.?.. From this we come to the necessity to derive improved quantum-kinetic equations. This task is realized in the main part of this book along two lines: reduced density operators, Chaps.?.–., and nonequilibrium Green functions, Chap.?..作者: 狗窩 時(shí)間: 2025-3-26 06:24 作者: Ruptured-Disk 時(shí)間: 2025-3-26 11:56
Properties of the Quantum Kinetic Equation,he non-Markovian quantum kinetic equations that were derived in Chaps.?. and .. It is proven that the non-Markovian quantum Landau equation conserves not kinetic energy but total energy (as expected). Furthermore, no H-theorem exists, and the equilibrium distributions differ from a Fermi or Bose distribution.作者: hemorrhage 時(shí)間: 2025-3-26 15:28 作者: Camouflage 時(shí)間: 2025-3-26 20:32 作者: 機(jī)制 時(shí)間: 2025-3-26 21:31
,Correlations Due to the Spin Statistics,artree-Fock mean field, Pauli blocking factors (for fermions) and many-body renormalized pair potentials. The final results are the properly (anti-)symmetrized equations of motion for the one-particle density operator and the two-particle and three- particle correlation operators.作者: largesse 時(shí)間: 2025-3-27 01:39
,Dynamically Screened Ladder Approximation,nt closure approximation for the BBGKY-hierarchy and the solution for the pair correlation operator and the resulting quantum kinetic equation. We conclude with an alternative idea that allows for an approximate treatment of strong correlations and screening that is due to Gould and DeWitt?[301].作者: Flounder 時(shí)間: 2025-3-27 07:56
Book 2016Latest editionondensed matter and trapped atoms that are stimulated by rapidly developing experiments with short pulse lasers and free electron lasers. To describe these experiments theoretically, the most powerful approach is given by non-Markovian quantum kinetic equations that are discussed in detail, including computational aspects. .作者: grounded 時(shí)間: 2025-3-27 11:03 作者: 僵硬 時(shí)間: 2025-3-27 14:06 作者: hazard 時(shí)間: 2025-3-27 21:41
978-3-319-34260-3Springer International Publishing Switzerland 2016作者: conjunctiva 時(shí)間: 2025-3-27 22:28 作者: 四牛在彎曲 時(shí)間: 2025-3-28 03:36 作者: 常到 時(shí)間: 2025-3-28 10:19 作者: Fecundity 時(shí)間: 2025-3-28 13:19 作者: Monotonous 時(shí)間: 2025-3-28 17:18
F20–F29: Schizophrenie, schizotype und wahnhafte St?rungenwelche einen übergang zu nichtpsychotischen Erkrankungen darstellt. Wahn und Halluzinationen sind bei diesen Erkrankungen nicht als Teil eines affektiven Syndroms zu verstehen. Die Gruppe ist hinsichtlich ihrer ?tiologie heterogen. Die gr??te diagnostische Kategorie, die Schizophrenie, ist selbst ke作者: 小平面 時(shí)間: 2025-3-28 21:29
Industrial Operation of the Biological Early Warning System BioArgus for Water Quality Control Usining water supply Early Warning Systems (EWS). The use of high level of chemical in drinking water is danger and economic losses in such cases depend on speed of acceptance of the management decisions directed to their prevention and elimination. The aim of EWSs is to support of the management decisi作者: 全神貫注于 時(shí)間: 2025-3-29 01:57
Hisaki Okan Weise sich vollzog, oder ob durch eine fehlerhaft geführte Heizung, durch ungenügenden oder zu reichlichen Luftzutritt die Zusammensetzung der abziehenden Gase von der normalen Beschaffenheit abweicht.作者: 蘆筍 時(shí)間: 2025-3-29 07:07
Arbeitslosigkeitrde dabei auf einen ?Elendsindex“ zurückgegriffen. Dieser Elendsindex ist die Summe aus Inflationsrate und Arbeitslosenquote und soll Auskunft über die Lage der Wirtschaft bzw. über Erfolg oder Versagen der Wirtschaftspolitik geben.作者: Jacket 時(shí)間: 2025-3-29 10:14 作者: defile 時(shí)間: 2025-3-29 12:02 作者: 聯(lián)合 時(shí)間: 2025-3-29 19:31
Ekkehard Recknagelom and codetermination. Only when this is possible will they feel comfortable, and progress will continue. Respect for human rights is crucial..The rules of the free market do not lean to either the right or left politically. Liberalism and the welfare state are not mutually exclusive. The “conflict作者: neolith 時(shí)間: 2025-3-29 23:39
Generationenfrage Kundenloyalit?t?ran konnte auch die Markt?ffnung nur kurzfristig etwas ?ndern.. So haben empirische Untersuchungen gezeigt, dass die niedrige Wechselquote in Deutschland weniger auf die überzeugungskraft der Angebote als vielmehr auf das nach wie vor dominierende Desinteresse der Kunden zurückgeht..作者: arcane 時(shí)間: 2025-3-30 01:07 作者: 潛伏期 時(shí)間: 2025-3-30 07:14 作者: 難解 時(shí)間: 2025-3-30 09:28 作者: 人類學(xué)家 時(shí)間: 2025-3-30 15:11
récents de la recherche (probabilités libres, probabilités Cet ouvrage est un cours de probabilités appliquées à la physique. Partant de notions élémentaires, il introduit les concepts importants des probabilités, la physique statistique, les phénomènes critiques et les simulations numériques de ma
