CTQM Theory Colloquium

Abstract:  Interacting electrons in strong magnetic fields give rise to rich phenomena, exemplified by the quantum Hall effect. In rhombohedral graphene, remarkably similar behavior has been observed even without an external field. In this talk, I will describe how electron–electron interactions in this system can spontaneously generate giant effective magnetic fields, reaching hundreds of Tesla. These emergent fields originate from self-organized layer-skyrmion textures, whose dynamics give rise to distinctive collective shape modes that can be experimentally probed.

Abstract: Magnetism is the posterchild of how the interplay between electron-electron interactions and quantum physics promotes novel macroscopic phenomena. Historically, the evolution of our understanding of magnetism has been related to the discovery of new paradigms in condensed-matter physics, as exemplified by the connections between antiferromagnetism and Mott insulators, spin glasses and non-ergodic states, and spin liquids and fractionalized excitations.

Abstract: We will discuss a dimensional hierarchy of the following over lattice systems of qudits.

Abstract:  There has been quite a bit of recent progress on the quantum mechanics of black hol

Abstract: The utility of near-term quantum computers for simulating realistic quantum systems hinges on the stability of digital quantum matter--realized when discrete quantum gates approximate continuous time evolution--and whether it can be maintained at system sizes and time scales inaccessible to classical simulations.

Abstract:

Abstract:   In recent years, superconducting qubits have emerged as a leading platform for quantum simulation, particul

Abstract: Over forty years ago, Nielsen and Ninomiya proved that chiral modes cannot exist in discrete systems without a m

Abstract: The modern understanding of quantum materials traces back to Felix Bloch, who first applied quantum mechanics to crystalline lat