Observation of Interactions between Two Superconducting Phase-Slip Centers

Maximum supercurrent in two Josephson-junction stacks: Theory and experiment

“…15,16 Nevertheless, in Ref. 15 the current in a weak link was always depressing the critical current in the other, while in our results the depression is obtained only for opposed currents, in agreement with results of Ref. 17 that were explained with a Cooper pair coupling between the outer electrodes of the two weak links.…”

“…The interaction in the zero voltage state looks similar to earlier experimental observations 15 in closely coupled microbridges that was explained in terms of current-induced orderparameter depression in the region between the bridges. 15,16 Nevertheless, in Ref.…”

“…The interaction in the zero voltage state looks similar to earlier experimental observations 15 in closely coupled microbridges that was explained in terms of current-induced orderparameter depression in the region between the bridges. 15,16 Nevertheless, in Ref. 15 the current in a weak link was always depressing the critical current in the other, while in our results the depression is obtained only for opposed currents, in agreement with results of Ref.…”

Proximity-reduced range of internal phase differences in double Josephson junctions with closely spaced interfaces

“…Positive sign of the right hand side in (A14) agrees with the condition f l/2−0 ≤ f l/2+0 , which will be satisfied by the consistent values of the quantities. Since in the absence of the supercurrent f ∞ = 1, while for the depairing current f 2 ∞ = 2/3, one obtains from (A11) 1 2 ≤ E ext ≤ 2 3 . The same value of the first integral E ext should follow from (A1) at x = l/2 + 0.…”

“…Static and dynamic couplings of two closely spaced junctions can play an important role in mesoscopic systems of superconducting electronics [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] . Two Josephson junctions connected in series are particularly linked to each other by the equality of the flowing currents.…”