superfluid He
Vortex nucleation in superfluid He 4
... of He II is rotated slowly, the superfluid component remains at rest relative to the fixed ...a superfluid: Hess and Fairbank showed [5] that, when a slowly rotating container of liquid 4 He ...
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Nonlinear and shock waves in superfluid HeII
... Investigations of the evolution in shape of an equipotentially charg- ed surface of liquid in an external dc electric field have demonstrated the possibility of observing a reconstruction phenomenon – the formation of a ...
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Optomechanics with Superfluid Helium 4
... When the valve is aligned at room temperature, it should be re-assembled and leak checked at 300K and 77K. If the valve is leak tight one can also check that it closes at 77 K where Torlon is no longer deformable and ...
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Dissipation in the superfluid helium film
... Experimental apparatus to study dissipation in the saturated superfluid helium film has been developed. The low temperature parts comprise a sealed cell containing liquid helium, to which are affixed two parallel ...
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Nonlinear and shock waves in superfluid HeII
... in He II by a point-like heater, then the propagating wave of heating 共compression兲 is fol- lowed by a wave of cooling 共 rarefaction 兲 ; see ...in He II, especially at elevated ...
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Modeling Kelvin wave cascades in superfluid helium
... 2 The second class of simplified models, Differential Approximation Models DAMs, use a closure in which the multi-dimensional k-space integral in the wave interaction term collision inte[r] ...
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Generation of defects in superfluid He 4 as an analogue of the formation of cosmic strings
... precludes the cooling of a volume of liquid helium rapidly through the lambda transition but, as Zurek pointed out, the liquid can instead be expanded through the transition at a speed limited, ultimately, by the ...
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Second Sound Shock Waves in Rotating Superfluid Helium
... - vii - TABLE OF CONTENTS 1 .O Copyright ii Dedication iii Acknowledgements iv Abstract v Table of Contents vii BEHAVIOR OF SECOND SOUND SHOCK WAVES 1 .I Weak Waves 1.2 Breakdown Stages [r] ...
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Development of a powerful UCN source at PNPI's WWR-M reactor
... high thermal neutron flux in the order of 10 12 s − 1 cm − 2 . The preferred position for implementation is the so-called thermal column, a channel with a large diameter of 1 m, adjoining to the reactor core [5,6], as ...
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Superfluid density of an open dissipative condensate
... of superfluid behavior have been studied in microcavity polariton systems, and features such as quantized vortices [10], suppression of scattering off disorder [11], and metastability of induced vortices [12] have ...
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Probing superfluid 4He with high frequency nanomechanical resonators down to mK temperatures
... predicting a quadratic dependence on the frequency of the nanobeam oscillating in fluid. The inset in Fig. 2(a) shows the measured losses of the nanobeams in superfluid helium as a function of their resonance ...
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An investigation of the three body reaction He^3(He^3, 2p)He^4
... 98 MeV, An energy scale is given along the top of the figure, 5 The high energy proton peak from the Li ground state mode is still evident near channel 3 4 120, Also seen are protons and[r] ...
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Kinetic energy of He atoms in liquid He-4-He-3 mixtures
... of 3 He has a relatively smooth variation in these ranges, we analyzed in detail the effects on the measured neutron Comp- ton profiles. An approach for the analytic correction of ab- sorption in strongly ...
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Trust in online information A comparison among high school students, college students and PhD students with regard to trust in Wikipedia
... Another difference between high school students on the one hand and college students and PhD students on the other hand is that the last two groups applied more different information fea[r] ...
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Experiments on quantum turbulence within superfluid 3He B
... the superfluid Cooper pairs, this will also have the effect of produc- ing a directionalised beam of ballistic thermal quasiparticles along the axis of the generator wire ...
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Superfluid fission dynamics with microscopic approaches
... (Color online) TDHF with dynamical BCS pairing calculation of 258 Fm symmetric fission with the SLy4 d Skyrme functional and surface pairing interaction.. The density pro- file, energy rep[r] ...
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Graphene bilayer structures with superfluid magnetoexcitons
... study superfluid behavior of a gas of spatially indirect magnetoexcitons with reference to a system of two graphene layers embedded in a multilayer dielectric ...
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Persistent currents and quantized vortices in a polariton superfluid
... After the discovery of zero viscosity in liquid helium, other fundamental prop- erties of the superfluidity phenomenon have been revealed. One of them, irrota- tional flow, gives rise to quantised vortices and persistent ...
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Thomas Shaffer: He Believes What He Teaches and Lives What He Believes
... The White Scholars, the students who make happen the Notre Dame Journal of Law, Ethics & Public Policy, last year voted to make Ethics the topic for this issue of th[r] ...
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