Quantum whistling in superfluid helium-4

E. Hoskinson, R. E. Packard () and Thomas M. Haard
Additional contact information
E. Hoskinson: University of California
R. E. Packard: University of California
Thomas M. Haard: University of California

Nature, 2005, vol. 433, issue 7024, 376-376

Abstract: Abstract Fundamental considerations predict that macroscopic quantum systems such as superfluids and the electrons in superconductors will undergo oscillatory motion when forced through a small constriction. Here we induce these oscillations in superfluid helium-4 (4He) by pushing it through an array of nanometre-sized apertures. The oscillations, which are detected as an audible whistling sound, obey the so-called Josephson frequency relation and occur coherently among all the apertures. The discovery of this property in 4He at the relatively high temperature of 2 K (2,000 times higher than the temperature at which a related but different phenomenon occurs in 3He) may pave the way for a new class of practical rotation sensors of unprecedented precision.

Date: 2005
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/433376a Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:433:y:2005:i:7024:d:10.1038_433376a

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/433376a

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().