d - m at / 0 60 85 37 v 1 [ co nd - m at . s of t ] 2 4 A ug 2 00 6 Transition to Superfluid Turbulence

ar X iv : c on d - m at / 0 60 86 11 v 1 2 8 A ug 2 00 6 Excited state spectra at the superfluid - insulator transition out of paired condensates

We describe gapped single-particle and collective excitations across a superfluid to insulator quantum phase transition of particles (bosons or fermions) in a periodic potential, with an even number of particles per unit cell. We demonstrate that the dynamics is controlled by a quantum impurity problem of a localized particle interacting with the bulk critical modes. Critical exponents are dete...

ar X iv : 0 80 2 . 14 22 v 2 [ co nd - m at . s of t ] 1 6 A ug 2 00 8 Critical Swelling of Particle - Encapsulating Vesicles

We consider a ubiquitous scenario where a fluctuating, semipermeable vesicle is embedded in solution while enclosing a fixed number of solute particles. The swelling with increasing number of particles or decreasing concentration of the outer solution exhibits a continuous phase transition from a fluctuating state to the maximum-volume configuration, whereupon appreciable pressure difference an...

ar X iv : c on d - m at / 0 20 91 97 v 1 [ co nd - m at . s up r - co n ] 9 S ep 2 00 2 Oxygen Phonon Branches

ar X iv : 0 70 7 . 42 37 v 2 [ co nd - m at . s up r - co n ] 2 3 M ar 2 00 8 Fluctuation spectroscopy of granularity in superconducting structures

We suggest to use ‘fluctuation spectroscopy’ as a method to detect granularity in a disordered metal close to a superconducting transition. We show that with lowering temperature T the resistance R(T ) of a system of relatively large grains initially grows due to the fluctuation suppression of the one-electron tunneling but decreases with further lowering T due to the coherent charge transfer o...

ar X iv : 0 81 0 . 21 97 v 1 [ co nd - m at . s of t ] 1 3 O ct 2 00 8 AC electrolyte conductivity in the ωτ < 1 regime

Details of the dynamic behaviour of different charged clusters in liquids are discussed. Their associated mass is considered which possesses a number of interesting features in a normal viscous liquid. In the two previous papers [1, 2] the authors noted that the systematically observed [3–6] temperature dependence of the positive ions effective mass in superfluid helium has mainly normal (non-s...