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Affiliates – Cristian D. Batista

Prof. Cristian Batista
[email protected]

Professor of Physics, University of Tennessee and Oak Ridge National Laboratory

Research focus: Quantum Materials, e.g. synthesis, molecular quantum systems, 2D materials, quantum magnetism, strongly correlated electron systems, Quantum Theory and Simulations, e.g. AI, high performance computing, topology, algorithmic development, correlated systems, Quantum Control and Measurement, e.g. spectroscopy, out of equilibrium quantum measurement and sensing, transport, and devices.



Cristian Batista is a Willis Lincoln Chair Professor at the Department of Physics and Astronomy of the University of Tennessee. He has a joint appointment with the Oak Ridge National Laboratory (ORNL). He is the deputy director of the Shull Wollan Center at ORNL. He works in the area of correlated electron systems with particular emphasis on quantum magnetism. He received his PhD in 1996 from the Intituto Balseiro (Bariloche, Argentina). In 2001, he became a J. R. Oppenheimer fellow of the Los Alamos National Laboratory. He is fellow of the American Physical Society (APS) and the vice Chair of the GMAG unit of the APS.

Research Description

We work on correlated electron materials and look for quantum mechanical behaviors that do not have a classical counterpart.

Recent research

Research Image

Comparison between the INS measurements of the triangular Heisenberg antiferromagnet Ba3CoSb2O9 and the results of a Schwinger Boson theory that includes corrections beyond the saddle point (mean field) level, which are crucial to obtain the true collective modes (magnons) of the system. The two-spinon continuum above the single-magnon dispersion is more consistent with the experimental data than the two-magnon continuum that is obtained from semi-classical approaches.