Kyoto, Tokyo, Fukuoka – From February 16 to March 16, 2025, our young researchers from the HINT Project, Ana Đorđević and Stefan Đorđević, traveled to Japan to participate in three major scientific events dedicated to quantum gravity, mathematical physics, and non-perturbative methods in quantum field theory (QFT).
At the YITP Workshop in Kyoto, discussions centered on quantum gravity and entanglement in an expanding de Sitter spacetime, crucial for understanding the early universe. The workshop explored the potential application of holographic correspondence to de Sitter spacetime, a topic still in its infancy compared to the well-established framework in Anti-de Sitter (AdS) spacetime. Additionally, researchers examined extensions of the Ryu-Takayanagi formula to spacetimes with positive curvature, shedding new light on entanglement entropy in cosmological settings.
In Tokyo, the Kavli IPMU Workshop focused on the intersection of enumerative geometry and physics, covering key topics such as Gromov-Witten theory, moduli spaces, and representation theory. The event demonstrated how advanced mathematical structures provide profound insights into string theory and quantum field theory, emphasizing the deep connections between geometry and fundamental physics.
The Kyushu IAS-iTHEMS Conference in Fukuoka delved into non-perturbative methods in QFT, featuring discussions on the conformal bootstrap and the role of the holographic principle in understanding quantum gravity. The conference highlighted the significance of interfaces and renormalization group (RG) flows as tools for probing the structure of quantum field theories.
Beyond the academic sessions, we engaged with researchers from India, South Korea, Germany, Japan, Mexico, the UK, Thailand, and beyond, exchanging ideas about our HINT project and fostering potential collaborations. Alongside our scientific pursuits, we had the chance to explore Japan’s rich cultural heritage, visiting museums, shrines, temples, and historical landmarks.
This journey provided invaluable insights into quantum gravity, non-perturbative QFTs, and the mathematical foundations of physics. The opportunity to connect with leading experts has not only expanded our research perspectives but also opened new avenues for future collaboration, strengthening the global network of the HINT project.
