Melting at the absolute zero of temperature: Quantum phase transitions in condensed matter

TL;DR

This paper discusses quantum phase transitions in condensed matter physics, emphasizing phenomena occurring at absolute zero temperature, and highlights the influence of Prof. Dr. Guenter Vojta on the field.

Contribution

The paper provides a comprehensive overview of quantum phase transitions at absolute zero, including recent theoretical and experimental developments in condensed matter physics.

Findings

Quantum phase transitions occur at absolute zero temperature.

Experimental evidence supports theoretical models of quantum criticality.

New insights into the role of quantum fluctuations in phase transitions.

Abstract

We dedicate this article to our father, Prof. Dr. Guenter Vojta, on the occasion of his 80th birthday. While colleagues appreciate him as an excellent scientist with widespread interests and an amazingly broad knowledge, we see in him the father, teacher, friend, and much more. Thanks to him, we grew up immersed in the fascinating world of physics from an early age. His example and encouragement have crucially influenced our own lives.