Upcoming Events
Half-yearly review meeting at Lausanne
November 2024
Past News & Events
Lecture Series on emergent topological phases in condensed matter physics by Prof. Sourin Das, IISER Kolkata
3th – 14th June
The construction of n-qubit pure states with maximum bipartite entanglement across all possible k vs n − k bi-partitions is discussed, where the Von Neumann entropy of every k-qubit reduced density matrix equals ( k \ln 2 ). These states, known as k-uniform states, are then shown to be closely linked to pure quantum error correction codes (QECCs), which not only correct errors but also identify their type and location. Methods to create k-uniform states using local gates or interactions are outlined, along with relevant QECC applications. It is further demonstrated that d-dimensional cluster states are 2d-uniform, with no finite-size corrections, maintaining uniformity for both infinite and large finite lattices. Lastly, the efficient use of k-uniform states for multi-party quantum key distribution is highlighted.
InstituteQ talk by Prof. Jakub Tworzydlo at Aalto University
30th November 2023
The mini colloquium is about the topological phenomena in strongly interacting quantum systems. While the study of fractional quantum Hall and correlated systems at large has a very rich history, the recent impressive progress in quantum material fabrication technology opens new frontiers for fascinating discoveries. The significant interest is in the engineered quantum systems based on graphene and van der Waals materials, where the interplay of electronic band structure, symmetry, and interactions between particles leads to exotic correlated and topological phenomena including unusual superconductors and correlated insulators. One of the major efforts is to demonstrate the non-Abelian states of matter which might be useful for topological quantum computations. We discussed the recent activities on designer platforms to create and manipulate such topologically nontrivial excitations. Topics discussed non-abelian quantum statistics. Interferometry and quantum optics experiment. Quantum Hall states and superconductivity. Correlated insulator and superconductivity in quantum materials.
CMD30 FisMat2023
September 4-8 2023
Alexander Zyuzin (Aalto University, Finland), Manohar Kumar (Aalto University, Finland ), Francesco Giazotto (Scuola Normale Superiore, Laboratorio NEST, Pisa), Pertti Hakonen (Aalto University, Finland)
The mini colloquium is about the topological phenomena in strongly interacting quantum systems. While the study of fractional quantum Hall and correlated systems has a rich history, the recent impressive progress in quantum material fabrication technology opens new frontiers for fascinating discoveries. The significant interest is in the engineered quantum systems based on graphene and van der Waals materials, where the interplay of electronic band structure, symmetry, and interactions between particles leads to exotic correlated and topological phenomena including unusual superconductors and correlated insulators. One of the major efforts is to demonstrate the non-Abelian states of matter which might be useful for topological quantum computations. We discussed the recent activities on designer platforms to create and manipulate such topologically nontrivial excitations. Topics discussed non-abelian quantum statistics. Interferometry and quantum optics experiment. Quantum Hall states and superconductivity. Correlated insulator and superconductivity in quantum materials.
Tobits Kick off meeting in Paris