Superfluidity of Liquid He3

MIMAC-He3 : MIcro-tpc MAtrix of Chambers of He3

Superfluidity, BEC, and dimensions of liquid He in nanopores

We present path integral Monte Carlo (PIMC) calculations of the superfluid fraction, ρS/ρ, and the one-body density matrix (OBDM) [Bose-Einstein condensation (BEC)] of liquid He confined in nanopores. Liquid He in nanopores represents a dense Bose liquid at reduced dimension and in disorder. The goal is to determine the effective dimensions of the liquid in the pores. It is to test whether obse...

On the superfluidity of classical liquid in nanotubes

In 2001, the author proposed the ultra second quantization method. The ultra second quantization of the Schrödinger equation, as well as its ordinary second quantization, is a representation of the N -particle Schrödinger equation, and this means that basically the ultra second quantization of the equation is the same as the original N -particle equation: they coincide in 3N -dimensional space....

Liquid-gas instability and superfluidity in nuclear matter

Abstract We study effects of the medium polarization on superfluidity in symmetric nuclear matter in a relativistic formalism. An effect of the liquid-gas instability is emphasized. We examine two types of decomposition of the nucleon propagator; the standard Feynman-density and the particle-holeantiparticle ones. In both cases, the medium polarization effect is determined by a characteristic c...

Colloquium: Criticality and superfluidity in liquid He under nonequilibrium conditions

We review a striking array of recent experiments and their theoretical interpretations on the superfluid transition in 4He in the presence of a heat flux Q . We define and evaluate a new set of critical point exponents. The statics and dynamics of the superfluid-normal interface are discussed, with special attention to the role of gravity. If Q is in the same direction as gravity, a self-organi...