11-15 July 2016
University of Stavanger
Europe/Oslo timezone

Effective field theory techniques applied to the hard scales of the plasmas

13 Jul 2016, 09:00
45m
G-001 (University of Stavanger)

G-001

University of Stavanger

Arne Rettedal building
Talk Plenary

Speaker

Cristina Manuel (CSIC-IEEC)

Description

We show that effective field theory techniques can be applied
in the high temperature T plasmas to
improve the accuracy of the physics of the hard scales ( or scales of order T).
At leading order in the
coupling constant  the hard scales of the plasma can be viewed as
on-shell classical particles. Based on this observation, and without any
reference
to the state of the system, we derive an effective field
theory describing the quantum fluctuations around an on-shell fermion  with
energy p, described as a set of high dimension operators over the on-shell energy
p. When applied to systems close  to equilibrium, when for most on-shell particles p ~ T,
we show that the
on-shell effective field theory (OSEFT) properly describes the  HTL photon
polarization tensor of QED, and its 1/T corrections. We also show how with
the OSEFT one can derive quantum corrections
to classical transport equations.

Primary author

Cristina Manuel (CSIC-IEEC)

Co-authors

Joan Soto Dr Stephan Stetina (INT, U. Washington)

Presentation Materials

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