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Lattice field theories with an energy current

Abstract:

We investigate a lattice scalar field theory in the presence of a bias favouring the establishment of an energy current, as a model for stationary nonequilibrium processes at low temperature in a non-integrable system. There is a transition at a finite value of the bias to a gapless modulated phase which carries a classical current; however, unlike in similar, integrable, models, quantum effects also allow for a non-zero current at arbitrarily small bias. The transition is second order in the...

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Publication status:
Published

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Authors


Suranyi, P More by this author
Journal:
Nucl.Phys. B
Volume:
565
Issue:
3
Pages:
487-505
Publication date:
1999-07-08
DOI:
ISSN:
0550-3213
URN:
uuid:596c6db0-4655-44ba-9feb-805af58c0e3e
Source identifiers:
240736
Local pid:
pubs:240736
Language:
English
Keywords:

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