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Publication
Physical Review Letters
Paper
Effects of dissipation and temperature on macroscopic quantum tunneling
Abstract
Measurements of the tunneling rate " out of the zero-voltage state for several Nb edge junctions with differing shunt capacitances are described. At zero temperature, increasing the shunt capacitance lowers " in agreement with dissipative calculations of the macroscopic-quantum-tunneling rate. As temperature increases, ln["(T)"(0)]T2 as recently predicted. © 1985 The American Physical Society.