Department of Physics

Indian Institute Of Technology Madras , Chennai

Proposal to probe many-body quantum chaos with quantum simulators

Speaker : Lata Joshi, Institute for quantum optics and quantum information (IQOQI), Innsbruck

2021-11-25

Abstract :

This seminar is a part of the activities of Center for Quantum Information Theory of Spacetime and Matter of IIT Madras

The spectral form factor (SFF), characterizing statistics of energy eigenvalues, is a key diagnostic of many-body quantum chaos. In addition, partial spectral form factors (pSFFs) can be defined which refer to subsystems of the many-body system. They provide unique insights into energy eigenstate statistics of many-body systems. In this talk I will discuss these on the basis of random matrix theory and of the eigenstate thermalization hypothesis. We have proposed a protocol which allows the measurement of SFF and pSFFs in quantum many-body spin models, within the framework of randomized measurements. I will be presenting our measurement scheme which provides a unified testbed to probe many-body quantum chaotic behavior, thermalization and many-body localization in closed quantum systems.

Key Speaker Lata Joshi, Institute for quantum optics and quantum information (IQOQI), Innsbruck
Guests None
Place Online
Start Time 5:30 PM
Finish Time 6:30 PM
External Link https://us02web.zoom.us/j/82925735272?pwd=NGdvZVVoc3ZFMmI5ZDZPL2IwYnlIZz09