Details

Autor(en) / Beteiligte

• Marconi, V I
• Domínguez, D

Titel

Nonequilibrium transitions in fully frustrated Josephson junction arrays

Ist Teil von

• Physical review letters, 2001-07, Vol.87 (1), p.017004-017004

Ort / Verlag

United States: The American Physical Society

Erscheinungsjahr

2001

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We study the effect of thermal fluctuations in a fully frustrated Josephson junction array driven by a current I larger than the apparent critical current I(c)(T). We calculate numerically the behavior of the chiral order parameter of Z2 symmetry and the transverse helicity modulus [related to the U(1) symmetry] as a function of temperature. We find that the Z2 transition occurs at a temperature T(Z2)(I) which is lower than the temperature T(U(1))(I) for the U(1) transition. Both transitions could be observed experimentally from measurements of the longitudinal and transverse voltages.