Non-commutative dynamics and roton-like spectra in bosonic and fermionic condensates

Details Non-commutative dynamics and roton-like spectra in bosonic and fermionic condensates Non-commutative dynamics and roton-like spectra in bosonic and fermionic condensates

2004-05-11

arxiv.org/abs/hep-th/0405093v1

Phys.Lett. A337 (2005) 463-468

Physics

High Energy Physics

High Energy Physics - Theory

4 Pages, no figures

Scientific paper

10.1016/j.physleta.2005.01.086

The relation between symmetry breaking in non-commutative cut-off field theories and transitions to inhomogeneous phases in condensed matter is discussed. The non-commutative dynamics can be regarded as an effective description of the mechanisms which lead to inhomogeneous phase transitions and their relation to the roton-like excitation spectrum. The typical infrared-ultraviolet mixing in non-commutative theories contains the peculiar ingredients to describe the interplay between short and long distance particle interactions which is responsible for the non-uniform background and the roton spectrum both in bosonic and fermionic condensates.

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