Electronics Business Journal
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Physics
Research from RIKEN reveals new findings on physics
March 24th, 2008
According to recent research from Wako, Japan, "We derive a quantum field theory of Josephson plasma waves (JPWs) in layered superconductors, which describes two types of interacting JPW bosonic quanta (one heavy and one lighter). We propose a mechanism of enhancement of macroscopic quantum tunneling (MQT) in stacks of intrinsic Josephson junctions." "Due to the long-range interaction between junctions in layered superconductors, the calculated MQT escape rate Gamma has a nonlinear dependence on the number of junctions in the stack. We develop a numerical procedure, based on quantum field tunneling theory, to calculate Gamma for the stack of Josephson junctions. We also...
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Source: Electronics Business Journal (2008-03-24)
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