22 research outputs found
Dual approaches for defects condensation
We review two methods used to approach the condensation of defects
phenomenon. Analyzing in details their structure, we show that in the limit
where the defects proliferate until occupy the whole space these two methods
are dual equivalent prescriptions to obtain an effective theory for the phase
where the defects (like monopoles or vortices) are completely condensed,
starting from the fundamental theory defined in the normal phase where the
defects are diluted.Comment: 7 pages, major modifications. Version accepted for publication in
Physics Letters
Induced deformation of the canonical structure and UV/IR duality in
The purpose of this work is two fold. Working in the framework of
Lorentz violating field theories we will investigate in the first place the
general claim that fermionic interactions may be equivalent to a deformation of
the canonical structure of the theory. Second the deformed theory will be
studied using duality reasoning to address the behavior of the Infra-Red and
Ultra-Violet regimes.Comment: revtex4 file, 19 pages, typos corrected, reference added, appendix
added, accepted for publication in Physical Review
Topologically Massive Gauge Theories and their Dual Factorised Gauge Invariant Formulation
There exists a well-known duality between the Maxwell-Chern-Simons theory and
the self-dual massive model in 2+1 dimensions. This dual description has been
extended to topologically massive gauge theories (TMGT) in any dimension. This
Letter introduces an unconventional approach to the construction of this type
of duality through a reparametrisation of the master theory action. The dual
action thereby obtained preserves the same gauge symmetry structure as the
original theory. Furthermore, the dual action is factorised into a propagating
sector of massive gauge invariant variables and a sector with gauge variant
variables defining a pure topological field theory. Combining results obtained
within the Lagrangian and Hamiltonian formulations, a new completed structure
for a gauge invariant dual factorisation of TMGT is thus achieved.Comment: 1+7 pages, no figure