Talk by Dr. Sambuddha Sanyal, Department of Physics, IISER, Tirupati, India at QASTM seminar
Channel: Sayantan Choudhury
Date: 2021-06-14

Title: Fractionalization and non-locality in quantum matter

Abstract:
The term "quantum matter" is typically used to describe many-body systems with emergent macroscopic properties that are intrinsically quantum mechanical. A theoretical description of "quantum matter" is beyond the scope of two most successful paradigms of many body physics, namely notion of symmetry breaking and the notion of integrity of electron as a quasi-particle.
In this talk I will focus on such quantum matter phases in the context of magnetism.
In the first half of the talk I will discuss recent theoretical progress in understanding a rich phase diagram predicted with an interesting interplay of magnetic order and fractional quasiparticles in quantum spin liquid phases in a frustrated three-dimensional magnet. In the second half of the talk I will focus on a disorder induced non-local ground state, recently predicted in a class of exactly solvable two-dimensional frustrated magnets.

Speaker: Dr. Sambuddha Sanyal, Department of Physics, IISER, Tirupati, India.

Date and Time: 14th June, 2021, 6.30 PM to 9.00 PM India time (3:00 PM to 5.30 PM Berlin time).

Zoominar link: https://mpi-aei.zoom.us/j/97623339163
Passcode: 969994

Contact: Dr. Sayantan Choudhury (sayantan.choudhury@niser.ac.in)