1980
DOI: 10.1007/bf00117121
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Mobility tensor of negative ions in superfluid 3He-A

Abstract: The mobility tensor of negative ions in the A phase of superfluid 3He is calculated for temperatures close to To. In this regime the scattering of superfluid quasiparticles from an electron bubble is practically elastic and the mobility tensor is expressed in terms of momentum transfer cross sections for an ion at rest. These generalized transport cross sections are obtained from the quasiparticle-ion scattering T-matrix, which we evaluate in terms of the normal state scattering amplitude. The p-wave pairing c… Show more

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Cited by 52 publications
(6 citation statements)
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“…Since the drag force on the slowly moving electron bubbles is caused by momentum transfer from the 3 He QPs, the Majorana fermions in the surface bound state are expected to be observed via the mobility. The formulation on the mobility of the electron bubbles in the bulk 3 He is well established [26][27][28], which reproduces experimental results [25,29,30]. Furthermore, the transverse force on the moving electron bubbles in the superfluid 3 He Aphase, which is the direct evidence of chiral symmetry breaking [31,32], is quantitatively demonstrated by considering momentum transfer from Weyl fermions in the bound state around the electron bubble [33].…”
supporting
confidence: 76%
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“…Since the drag force on the slowly moving electron bubbles is caused by momentum transfer from the 3 He QPs, the Majorana fermions in the surface bound state are expected to be observed via the mobility. The formulation on the mobility of the electron bubbles in the bulk 3 He is well established [26][27][28], which reproduces experimental results [25,29,30]. Furthermore, the transverse force on the moving electron bubbles in the superfluid 3 He Aphase, which is the direct evidence of chiral symmetry breaking [31,32], is quantitatively demonstrated by considering momentum transfer from Weyl fermions in the bound state around the electron bubble [33].…”
supporting
confidence: 76%
“…The wave number of the Majorana fermions is fixed on the Fermi wave number, k = k Fk . The T -matrix element k ′ |T S |k ≡ T S (k ′ ,k, E, z) is given by the following equation based on the Lippman-Schwinger equation [28,33]:…”
mentioning
confidence: 99%
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“…2 have been calculated by Salomaa et al for the A phase at zero field and 28 bar. 11,15 The observed temperature dependence for the positive ion is clearly weaker than the calculated one regardless of the magnetic fields. This means that the inelastic scattering is more important for the positive ion.…”
Section: Ions In Liquidmentioning
confidence: 64%
“…[42,43] for reviews. Small objects have been extensively studied using the quantum approach, modeling the scattering of quasiparticles from the object by scattering phase shifts [44][45][46][47][48]. We are interested in the motion of the object at velocities exceeding the Landau critical velocity.…”
Section: A Small Objectmentioning
confidence: 99%