Phys. Rev. Lett. 103, 217004 (2009) [4 pages]Charging Effects in the Inductively Shunted Josephson Junction
See accompanying Physics Synopsis The choice of impedance used to shunt a Josephson junction determines if the charge transferred through the circuit is quantized: a capacitive shunt renders the charge discrete, whereas an inductive shunt gives continuous charge. This discrepancy leads to a paradox in the limit of large inductances L. We show that while the energy spectra of the capacitively and inductively shunted junction are vastly different, their high-frequency responses become identical for large L. Inductive shunting thus opens the possibility to observe charging effects unimpeded by charge noise. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.217004
DOI:
10.1103/PhysRevLett.103.217004
PACS:
85.25.Cp, 74.50.+r
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