Metastable state of rotating Helium II when its rotary speed is suddenly changed

Journal Article · Fri Jul 20 04:00:00 EDT 1973 · JETP Lett. (USSR) (Engl. Transl.), v. 18, no. 2, pp. 43-45

OSTI ID:4378875

Nadirashvili, Z Sh; Tsakadze, D S

Translated from Zh. Eksp. Teor. Fiz., Pis'ma Red.; 18: No. 2, 77- 79(20 Jul 1973). Previous studies have shown that helium II rotating in a transcritical regime can remain in a metastable state for a long time. Unlike those where the vortices vanish or are formed in groups when the rotary speed is varied smoothly and slowly, results are reported here of experiments in which the rotary speed of the apparatus was decreased almost instantaneously. It is concluded that the decay of the vortex system when the rotation of the helium II stops differs strongly from the decay of the excess vortices following a sudden decrease of the rotary speed. (MHR)

• Research Organization: Inst. of Physics, Tbilisi, USSR
• NSA Number: NSA-29-006324
• OSTI ID: 4378875
• Journal Information: JETP Lett. (USSR) (Engl. Transl.), v. 18, no. 2, pp. 43-45, Journal Name: JETP Lett. (USSR) (Engl. Transl.), v. 18, no. 2, pp. 43-45; ISSN JTPLA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*HELIUM II-- ROTATION
METASTABLE STATES
N66100* --Physics (Low Temperature)--Superfluidity
RELAXATION
VARIATIONS