#### Filter Results:

- Full text PDF available (46)

#### Publication Year

1962

2016

- This year (0)
- Last 5 years (6)
- Last 10 years (17)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Stanisław Mrówczyński, Markus H. Thoma
- 2000

Anisotropic systems of quarks and gluons, which at least for sufficiently short space-time intervals can be treated as homogeneous and static, are considered. The gluon polarization tensor of such a system is explicitly computed within the semiclassical kinetic and hard loop diagrammatic theories. The equivalence of the two approaches is demonstrated. The… (More)

- H Rothermel, T Hagl, G E Morfill, M H Thoma, H M Thomas
- Physical review letters
- 2002

Micron-sized particles are suspended or lifted up in a gas by thermophoresis. This allows the study of many processes occurring in strongly coupled complex plasmas at the kinetic level in a relatively stress-free environment. First results of this study are presented. The technique is also of interest for technological applications.

- Markus H Thoma
- 1995

A recent development in nite temperature eld theory, the so-called Braaten-Pisarski method, and its application to properties of a quark-gluon plasma, possibly formed in relativistic heavy ion collisions, are reviewed. In particular parton damping rates, the energy loss of energetic partons, thermalization times, viscosity, and production and damping rates… (More)

- Markus H. Thoma
- 2000

The application of generalized Kramers-Kronig relations, the so-called Leontovich relations, to thermal field theory is discussed. Medium effects contained in the full, thermal propagators can easily be taken into account by this method. As examples the collisional energy loss of a charged particle in a relativistic plasma and the radiation of energetic… (More)

- Markus H. Thoma
- 1997

The complete one-loop self energies (real and imaginary parts) for photons, gluons, electrons and quarks at finite temperature are calculated numerically and compared to the results of the hard thermal loop (HTL) approximation used for the resummation technique of Braaten and Pisarski. In this way some light is shed on the validity of the weak coupling… (More)

- M. H. Thoma, Bidhan Nagar
- 2000

We calculate temporal correlators and their spectral functions with meson quantum numbers in the deconfined phase of QCD using the hard thermal loop (HTL) approximation for the quark propagator. Although this approach does not result in a complete next-to-leading order perturbative calculation it takes into account important medium effects such as thermal… (More)

- S A Khrapak, S V Ratynskaia, +8 authors V E Fortov
- Physical review. E, Statistical, nonlinear, and…
- 2005

An experimental determination of particle charge in a bulk dc discharge plasma covering a wide range of neutral gas pressures, was recently reported [S. Ratynskaia, Phys. Rev. Lett. 93, 085001 (2004)]. The charges obtained were several times smaller than the predictions of collisionless orbital motion limited theory. This discrepancy was attributed to the… (More)

- Markus H. Thoma
- 1994

The effective perturbation theory developed by Braaten and Pisarski for gauge theories at finite temperature is extended to finite chemical potential. As a first application the collisional energy loss of a heavy quark propagating through a quark-gluon plasma with non-vanishing quark chemical potential is considered. Assuming μ/T ≃ 1, motivated by numerical… (More)

- S Mitic, R Sütterlin, A V Ivlev H Höfner, M H Thoma, S Zhdanov, G E Morfill
- Physical review letters
- 2008

Steady-state clouds of microparticles were observed, levitating in a low-frequency glow discharge generated in an elongated vertical glass tube. A heated ring was attached to the tube wall outside, so that the particles, exhibiting a global convective motion, were confined vertically in the region above the location of the heater. It is shown that the… (More)

- A D Usachev, A V Zobnin, +7 authors G E Morfill
- Physical review letters
- 2009

An attraction between negatively charged micron-sized plastic particles was observed in the bulk of a low-pressure gas-discharge plasma under microgravity conditions. This attraction had led to the formation of a boundary-free dust cluster, containing one big central particle with a radius of about 6 microm and about 30 1 microm-sized particles situated on… (More)