Quantum Coherence in a Superfluid Josephson Junction
Supradeep Narayana, Yuki Sato
DOI 10.1103/PhysRevLett.106.055302 · Physical Review Letters
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Abstract
We report a new kind of experiment in which we take an array of nanoscale apertures that form a superfluid He4 Josephson junction and apply quantum phase gradients directly along the array. We observe collective coherent behaviors from aperture elements, leading to quantum interference. Connections to superconducting and Bose-Einstein condensate Josephson junctions as well as phase coherence among the superfluid aperture array are discussed.
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| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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