Experimental realities refuting existence of p=0 condensate in a system of interacting bosons : I. Electron bubble

2010/11/06 by Jain, Yatendra S.
#FOS: Physical sciences #Other Condensed Matter (cond-mat.other)

paper · doi:10.48550/arxiv.1011.1552

Abstract

Physical reality of the existence of electron bubble in liquid ⁴He (or ³He) renders a \it clear experimental evidence for a quantum particle (in an interacting environment as seen by electron in liquid helium) to occupy exclusively a space of size λ/2 that, obviously, depends on its energy/momentum. This unequivocally proves that \it no particle in a system of interacting bosons such as liquid ⁴He has momentum p=0; in stead, \it all particles in the ground state of such a system are in the single quantum state of energy ε_o = h²/8md² or momentum p = h/2d.

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