Quasiparticle Boltzmann equation in semiconductors

Špička, Václav; Lipavský, Pavel

doi:10.1103/physrevb.52.14615

Cited by 68 publications

(61 citation statements)

References 15 publications

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“…A similar expression, but without the last term on the r.h.s was found in [33,34], see also [35]. As it can be seen from this expression, the correlation functions consist of a pole contribution and an off-pole part.…”

Section: Kinetic Equation In First Order Gradient Expansion Bound Stsupporting

confidence: 60%

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Short-time kinetics and initial correlations in nonideal quantum systems

Kremp¹,

Semkat²,

Bornath³

2006

Condens. Matter Phys.

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There are many reasons to consider quantum kinetic equations describing the evolution of a many-particle system on ultrashort time scales, e. g. correct energy conservation in nonideal plasmas, buildup of correlations (bound states), and kinetics of ultrafast processes in short-pulse laser plasmas.We present a quantum kinetic theory including initial correlations and being valid on arbitrary time scales. Various examples of short-time relaxation processes, such as relaxation of the distribution function and the energy, are shown. Furthermore, gradient expansions of the general equations and the role of bound states are discussed.

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Section: Kinetic Equation In First Order Gradient Expansion Bound Stsupporting

confidence: 60%

“…From the representation (53), it turns out that the quantity Q describes quasiparticles [21,33,34]. It is useful to introduce a quasiparticle distribution function by…”

Section: Kinetic Equation In First Order Gradient Expansion Bound Stmentioning

confidence: 99%

Short-time kinetics and initial correlations in nonideal quantum systems

Kremp¹,

Semkat²,

Bornath³

2006

Condens. Matter Phys.

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“…The non-equilibrium form has been derived finally as the modified Kadanoff and Baym ansatz. 40 We will call this the extended quasiparticle approximation. This extended quasiparticle picture leads to balance equations which include explicit correlation parts analogous to the virial corrections.…”

Section: Extended Quasiparticle Approximationmentioning

confidence: 99%

The Concept of Correlated Density and Its Application

Morawetz

Lipavský

KOLÁČEK

et al. 2007

Condensed Matter Theories

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The correlated density appears in many physical systems ranging from dense interacting gases up to Fermi liquids which develop a coherent state at low temperatures, the superconductivity. One consequence of the correlated density is the Bernoulli potential in superconductors which compensates forces from dielectric currents. This Bernoulli potential allows to access material parameters. Though within the surface potential these contributions are largely canceled, the bulk measurements with NMR can access this potential. Recent experiments are explained and new ones suggested. The underlying quantum statistical theory in nonequilibrium is the nonlocal kinetic theory developed earlier.

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“…Unfortunately, this scheme becomes very complicated in the case of QED plasmas since one has to deal with matrix correlation functions and propagators in spinor space. A more general approach to the same problem was developed byŠpička and Lipavský [6,7]. In principle, it allows one to go beyond the simplest version of the extended quasiparticle approximation by taking the collisional broadening of the quasiparticle spectral function into account.…”

Section: Introductionmentioning

confidence: 99%

Extended quasiparticle approximation for relativistic electrons in plasmas

Morozov¹,

Ropke²

2006

Condens. Matter Phys.

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Starting with Dyson equations for the path-ordered Green's function, it is shown that the correlation functions for relativistic electrons (positrons) in a weakly coupled non-equilibrium plasmas can be decomposed into sharply peaked quasiparticle parts and off-shell parts in a rather general form. To leading order in the electromagnetic coupling constant, this decomposition yields the extended quasiparticle approximation for the correlation functions, which can be used for the first principle calculation of the radiation scattering rates in QED plasmas.

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Quasiparticle Boltzmann equation in semiconductors

Cited by 68 publications

References 15 publications

Short-time kinetics and initial correlations in nonideal quantum systems

Short-time kinetics and initial correlations in nonideal quantum systems

The Concept of Correlated Density and Its Application

Extended quasiparticle approximation for relativistic electrons in plasmas

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