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Welcome to Wiki of the Quantum Transport Theory Group led by Prof. Dr. Branislav K. Nikolić
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About QTTG

Our theoretical condensed matter physics group is focused on nonequilibrium quantum and many-body systems, with close attention being paid to their realization in experiments and/or technological applications, such as:

The principal tools that we employ daily include analytical Schwinger-Keldysh nonequilibrium quantum field theory, as well as computational nonequilibrium Green functions, time-dependent density functional theory, time-dependent density matrix renormalization group, quantum-classical methods and their combination with high performance scientific computing. Our research is supported by the U.S. National Science Foundation and the Department of Energy.

Research Highlights

The image on the left depicts bilayer-CrI3/monolayer-TaSe2 van der Waals heterostructure for which we predict current-pulse driven nonequilibrium phase transition where spin-orbit torque, generated by monolayer of metallic transition metal dichalcogenide TaSe2, switches insulating antiferromagnet bilayer-CrI3 into ferromagnet in reversible fashion and with those phases being stable in between two pulses.


Recently Completed Projects

QTTG Mottos

  • The outcome of any serious research can only be to make the two questions grow where only one grew before.
  • Employing the computer for the study of a model has the feeling of an experiment: you can ask clever "questions" to the "sample" under study, analyze data, and come up with an intuitive picture of what is happening. Very often the computer results are not what we were expecting a priori, thus there is a neat back and forth process until a convergence to a firm conclusion is reached. (Elbio Dagotto).

QTTG Member Competences

  • strong commitment,
  • attention to detail,
  • demonstrated ability to work with deadlines,
  • manage conflicting priorities,
  • excellent communication skills,
  • ability to work with highly qualified professionals with international backgrounds.

Wiki Getting Started

Consult User's Guide for information on using the wiki software.