**Meet the editor**

Roberto Zivieri is a theoretical condensed matter physicist. He got his master's degrees in Medicine and Surgery and in Physics (with honors) and his PhD degree in Physics from the University of Modena, Italy (grade excellent). He is an author of more than 200 scientific contributions in condensed matter and biological physics and electric engineering in international reputed jour-

nals and conferences. He has been serving as an editorial board member, and he makes part of organizing committees in international conferences. He is a member of the APS, ACS, and Italian Societies of Mathematical Physics and Magnetism. He is the winner of the APS Award "Outstanding Referees 2016." He is the editor in chief of the book series *Theoretical and Computational Models in Condensed Matter Physics* (Aracne Rome). v

Contents

**Preface VII**

Chapter 1 **Introductory Chapter 3** Roberto Zivieri

**Section 2 Superfluidity: Theory and Observation 5**

Klimin and Jacques Tempere

**Vortex-Membranes 33**

Su-Peng Kou

Chapter 4 **"Clean" Liquid Helium 67**

Vladimir Kozhevnikov

**Chalcogenides 111** Jifeng Shao and Wenka Zhu

Chapter 2 **An Effective Field Description for Fermionic Superfluids 7**

Chapter 3 **Topological Interplay between Knots and Entangled**

**Section 3 Superconductivity: Modelling and Experiment 87**

Chapter 5 **Intermediate State in Type-I Superconductors 89**

Wout Van Alphen, Nick Verhelst, Giovanni Lombardi, Serghei

Miguel Gabal, Javier Sesé, Conrado Rillo and Stefano Spagna

Chapter 6 **Emerging Superconductivity and Topological States in Bismuth**

**Section 1 Introduction 1**
