Ceren B. Dag

ITAMP Postdoctoral Fellow

Ceren obtained her PhD in physics at the University of Michigan Ann Arbor in 2021 under the supervision of Luming Duan and Kai Sun working at the intersection between AMO and condensed matter physics. She studies quantum phase transitions, both symmetry-breaking and topological, and quantum many-body dynamics with numerical and analytical techniques. Her PhD dissertation focuses on nonequilibrium signatures of quantum order, and how quantum systems thermalize and scramble information from the perspective of quantum simulation with cold atoms. She provided insight about the relationship between spontaneous symmetry breaking quantum phase transitions and information scrambling, and how topological order associated with Z2 symmetry could slow down infinite temperature information scrambling, where information scrambling is probed via out-of-time-order correlators. Prior to her graduate training, she obtained her double degree BSc in Electronics & Telecommunications Engineering and Physics at Istanbul Technical University in 2015 studying quantum optics and quantum thermodynamics for her BSc dissertations.

Ceren's been recently focusing on random quantum circuits, quantum chaos and Floquet driven or quenched fermionic systems in 2D as ITAMP fellow.

Research Interests: 
quantum phase transitions; quantum many-body dynamics; quantum simulation; topological insulators and topological superconductors; Quantum Hall physics; quantum information.

Selected Publications:

The relationship between spontaneously symmetry breaking quantum phase transitions and information scrambling (e.g., how local operators spread in time and space and become nonlocal) is made intuitive based on an analytical framework : Phys. Rev. Lett. 123, 140602 (2019)

Infinite temperature information scrambling is found to be slowed down when there is topological order associated with Z2 symmetry : Phys. Rev. B 101, 104415 (2020)

The route to thermalization in spinor Bose-Einstein condensates is revealed in terms of eigenstate thermalization hypothesis: Phys. Rev. A 97, 023603 (2018)

A minimal cold-atom friendly spin model is proposed to probe out-of-time-order correlators and information scrambling: Phys. Rev. A 99, 052322 (2019)

Short time transient quench dynamics carry the signatures of quantum order: Phys. Rev. B 103, 214402 (2021)