Accessing quantum phases in Hubbard honeycomb lattice using an electromagnetic drive

ORAL

Abstract

In the recent past, there has been a great interest in creating novel states of matter under driven conditions, in the condensed matter physics. The Hubbard honeycomb lattice is known to host rich phases [1]. The presence of a periodic drive such as an electromagnetic field in the lattice can be used to tune parameters and to generate new interactions, which can stabilize novel quantum states that is absent in equilibrium. Using Schrieffer-Wolff transformation for the periodically driven system [2] and high-frequency approximation on the drive, we evaluate an effective low-energy Hamiltonian for the Hubbard honeycomb lattice in the presence of drive. We estimate the conditions on the electromagnetic drive that can allow one to tune to different quantum phases, such as transient superconductivity in our model.

[1] Black-Schaffer, A., et al., J. Phys.: Condens. Matter 26, 423201 (2014)
[2] Bukov, M., et al., Phys. Rev. Lett. 116, 125301 (2016)

*This work was carried out under the auspices of the U.S. DOE NNSA under contract No. 89233218CNA000001 through the LDRD Program.

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Presenters

  • Umesh Kumar

    • Theoretical Division, T-4, Los Alamos National Laboratory

Authors

  • Umesh Kumar

    • Theoretical Division, T-4, Los Alamos National Laboratory

  • Shizeng Lin

    • Theoretical Division, Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Theoretical Division, T-4, Los Alamos National Laboratory
    • Los Alamos National Laboratory
    • Theoretical Division, Los Alamos National Lab
    • Theoretical Division, T-4 and CNLS, Los Alamos National Laboratory
    • Los Alamos National Lab