Roton

Known as: Roton (disambiguation) 
In theoretical physics, a roton is an elementary excitation, or quasiparticle, in superfluid helium-4. The dispersion relation of elementary… (More)
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2018
2018
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they… (More)
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2013
2013
Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or… (More)
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2012
2012
We characterize the immiscibility-miscibility transition (IMT) of a two-component Bose-Einstein condensate (BEC) with dipole… (More)
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2004
2004
It has always been assumed that the roton in He had to do with local vorticity hence the name! We present here an alternate view… (More)
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2004
2004
To find a primary factor determining Tc and a pairing mechanism in high-Tc cuprates, we combine the muon spin relaxation results… (More)
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2002
2002
Sobnack et al. recently investigated theoretically the effect of roton backflow on the scattering of atoms, rotons, and phonons… (More)
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2000
2000
The nonlocal nonlinear Schrodinger equation is used to analyze the superfluid flow around an impurity. The differences ̈ between… (More)
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1999
1999
The dynamic structure factor, S(Q, w), for wavevectors, 2 .0<Q<3.6 A of liquid He in 95 % porous aerogel has been measured by… (More)
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1997
1997
Diffusion Monte Carlo results for the phonon-roton excitation branch in bulk liquid 4 He at zero temperature are presented. The… (More)
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1978
1978
Rotons have been observed by neutron inelastic scattering in a 6 % mixture of 'He in 4 ~ e , at temperatures between 1.27 K and 2… (More)
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