On the hydrodynamics of non-viscous fluids and the theory of helium II

Two resonant quantum electrodynamics models of quantum measuring systems

“…As an illustration of Preparata et al's theory of superradiant phase transitions, under three approximations (the electric dipole approximation, the two-level approximation and the rotating-wave approximation), previous theoretical calculations have shown that pure liquid water is a two-phase system of water molecules in a coherent superradiant state and the incoherent normal state. In this case, the two phases coexist exactly like in Landau's two-fluid theory of superfluid 4 He [34,35,36], and their fractions in pure liquid water depend on the temperature. [52,53,54] In this picture of pure liquid water, the coherence domain for the transitions between the electronic ground and first excited states (here, not the rotational ground and first excited states) of water molecules has a radius of 375 [Å] at 0 [K], and this decreases to 250 [Å] at room temperature (300 [K]).…”

“…is defined by the negative of the cations's velocity potential. [34,35,36] Its quantum field operator P…”

“…where we ignore the vorticity in the fluid motion of the cluster of cations solvated by water. [34,35,36] Here, it is worth quantifying the diffusion of cations in the sensory cells. We consider the auditory case, where cation refers to a potassium ion in a hair cell.…”

Microscopic Quantum Hydrodynamics for Interacting Bose Systems

“…4 An alternative version of it was developed by Kronig, Thellung, and Ziman. 5 The aim of this paper is to reexamine the quantum hydrodynamics of Landau, clothe it in more modern dress, and try to draw some new conclusions from it.…”

Contribution From Phonon–phonon Interactions to the T3 Term of the Specific Heat of Helium Ii

“…Quantizatiotl of the irrotational motion of a nonviscous fluid has been carried out by ICronig and Thellung (2) (hereafter referred to a s ICT) who obtain a contribution to the specific heat C. = ( 1 6 ? r~4 / 1 5 p~h 3~~3 ) T 3 .…”