Abstract:
Microscopic theory of interacting bose-systems with ground state consisting of the
condensate of bound particle pairs is proposed. It is shown that low-frequency excitations
and their interactions in such systems are the same as in the bose-liquids with
single-particle condensate. Distinctions between the properties of the two types of
systems consist in conditions of vortex quantization and in possibility of high-frequency
single-particle excitations.
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