SPICE Workshop on Quantum materials and quantum information science May 19th - 21st, 2026
Ken Burch
Detecting novel quantum states and the physics behind them requires simultaneously probing multiple physical properties: energy, symmetries, and quantum correlations. Here, I will describe how inelastic light scattering can be employed to answer this challenge. First, I will explain the connection between altermagnets and spin-valley locking. With this in mind, I will discuss our recent demonstration of pair-emission, in which altermagnetic order enables a dark exciton on one magnetic site to photoluminesce via the excitation of a magnon on the second site. Next, I will describe how Raman scattering is best understood as a noise measurement that provides direct access to the properties of materials. I will focus on our recent experiments employing quantum interference in Raman to reveal the long-hidden ferro-axial orbital density wave in RTe3. Time permitting, I will also briefly discuss our efforts to combine quantum optics with Raman to detect entanglement.