Abstract
It is shown that the low-frequency spectral density of the voltage noise in a current-biased Josephson junction with critical current I0, shunt resistance R, and small capacitance is eI02R3πV in the limit eVkBT(II0)2 and I>I0, where V is the voltage and I is the current. The noise arises from zero-point current fluctuations in the shunt resistor. The rounding of the current-voltage characteristic caused by the quantum fluctuations and the effects of nonzero junction capacitance are calculated.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2132-2135 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 45 |
| Issue number | 26 |
| DOIs | |
| State | Published - 1980 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
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