Observation of dynamical phase transitions in a superconducting quantum processor implementing five stabilizer terms

ORAL

Abstract

The dynamical phase transition (DPT) [1] in many-body systems is of recent interest due to the ability to engineer these non-equilibrium quantum phases in the laboratory.  DPTs are typically defined as non-analytic behavior in the dynamical free energy.   They have also been shown to represent error correction properties when applied to stabilizer codes [2]. Here, we report on results from the d=2 toric code (also known as a surface code) when including 5 stabilizer terms, and executed on the QuTech Quantum Inspire superconducting quantum processor. We observe good agreement between experiment and theory when accounting for experimentally calibrated error sources.

 

[1] M. Heyl et al., Phys. Rev. Lett. 110, 135704 (2013).

[2] A. T. Schmitz, arXiv:2002.11733 (2020).

*Research funded by Intel Corporation and IARPA (U.S. Army Research Office Grant No. W911NF-16-1-0071).

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Presenters

  • Shavindra P Premaratne

    • Intel Corporation, Hillsboro

Authors

  • Shavindra P Premaratne

    • Intel Corporation, Hillsboro

  • Albert T Schmitz

    • Intel Corporation, Hillsboro
    • Intel Corporation - Hillsboro

  • Miguel Moreira

    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands
    • Delft University of Techology
    • Delft University of Technology
    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology

  • Leonardo DiCarlo

    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, The Netherlands
    • Delft University of Technology

  • Anne Y Matsuura

    • Intel Corporation, Hillsboro
    • Intel Corporation, Santa Clara
    • Intel Labs, Intel Corporation, USA