Nobel Laureate Prof. J. Michael Kosterlitz Reflects on the Discovery of the Kosterlitz-Thouless Transition and Its Impact on Physics

Prof. J. Michael Kosterlitz, awarded the 2016 Nobel Prize in Physics, revolutionized the understanding of phase transitions in two-dimensional systems through the discovery of the Kosterlitz-Thouless (KT) transition. This groundbreaking work, conducted with David Thouless, challenged the prevailing belief that thermal fluctuations prevented phase transitions in such systems, introducing the concept of topological phase transitions.

The KT transition emerged from a serendipitous collaboration and a willingness to question conventional wisdom. Prof. Kosterlitz's journey from high-energy physics to condensed matter physics, driven by curiosity and the right mentorship, underscores the importance of interdisciplinary exploration and open-mindedness in scientific discovery.

Despite initial skepticism, the KT transition has found applications across a wide range of physical systems, including superconductivity, superfluidity, and two-dimensional materials. Prof. Kosterlitz's reflections highlight the unpredictable nature of scientific breakthroughs and the value of pursuing research driven by genuine interest rather than the pursuit of fame or recognition.

Looking ahead, Prof. Kosterlitz emphasizes the importance of fun and curiosity in scientific research. His advice to the next generation of physicists is to find problems that excite them, underscoring the belief that passion and enjoyment are key to meaningful scientific contributions. The legacy of the KT transition serves as a testament to the transformative power of challenging established norms and the endless possibilities at the intersection of different scientific disciplines.