2022 Impact factor 3.4

EPJ B - Superfluidity of a perfect quantum crystal

Only one liquid exhibits Bose-Einstein condensation in nature: Helium II, . At such temperatures, all other substances are solid. In these two papers, Vitaly Golovko demonstrates that Bose-Einstein condensation can also occur in the solid state. Moreover, it is shown that at 0 K, a condensate crystal is energetically preferable with respect to the same quantum crystal without condensate. Therefore, on lowering the temperature of the crystal there must somewhere happen Bose-Einstein condensation, as in liquid helium. This opens a huge field for experimental investigations of Bose-Einstein condensation and of its influence on properties of solids.

B. Fraboni and G. García López
Thank you. We are indebted to the reviewers, Editor for their time and pinpoint comments and suggestions. I am also thankful for the Editorial office. The speed of the manuscript processing and the updates are too good.

Vemula Ramakrishna Reddy, IIT Hyderabad, India

ISSN: 2190-5444 (Electronic Edition)

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