Half-quantum vortices
نویسندگان
چکیده
منابع مشابه
Observation of half-quantum vortices in an exciton-polariton condensate.
Singly quantized vortices have already been observed in many systems, including the superfluid helium, Bose-Einstein condensates of dilute atomic gases, and condensates of exciton-polaritons in the solid state. Two-dimensional superfluids carrying spin are expected to demonstrate a different type of elementary excitations referred to as half-quantum vortices, characterized by a pi rotation of t...
متن کاملHalf quantum vortices and Majorana fermions in triplet superconductors
Half quantum vortices (HQVs) in superfluid He − A have been speculated since 1976. Two years ago, Yamashita et al[1] reported a very unusual NMR satellite in the rotating superfluid He − A in a parallel plate geometry. Recently this satellite has been interpreted in terms of HQVs[2]. Also, the strong flux pinnings in the triplet superconductors UPt3, Sr2RuO4 and U1−xThxBe13 have been discovered...
متن کاملHalf-quantum vortices in strongly correlated Bose liquids.
Half-quantum vortices in strongly correlated Bose liquids. Abstract We discuss the structure of a vortex in a superfluid Bose liquid with a suppressed Bose-Einstein condensate and an intensive pair correlated condensate. The vortex represents the pair of half-quantum vortices topologically confined by the soliton. In strongly interacting and strongly correlated Bose liquid – su-perfluid 4 He – ...
متن کاملHalf-Quantum vortices in a two-dimensional chiral p-wave superconductor
In this term paper we give a brief introduction to the half-quantum vortices (HQVs) in a two-dimensional chiral p-wave superconductor such as Sr2RuO4. HQV was not observed in Sr2RuO4 in experiments for years, which results from the unstability of HQV in bulk material. Until most recently, Budakian’s group observed half-height magnetization steps in micron-size samples of Sr2RuO4, which indicate...
متن کاملSatellite magnetic resonances of a bound pair of half-quantum vortices in rotating superfluid 3He-A.
The transverse magnetic resonance satellite frequency and intensity associated with a bound pair of half quantum vortices in a thin slab of 'He-A, rotating about the slab normal and subject to a magnetic field applied at an angle 0 with the slab normal, is recalculated in a variational approach. This approach takes properly into account the azimuthal symmetry of the spin wave function and there...
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ژورنال
عنوان ژورنال: Low Temperature Physics
سال: 2013
ISSN: 1063-777X,1090-6517
DOI: 10.1063/1.4823487