Welcome!

IMG_20220813_190624_4

I’m a Postdoctoral Researcher at Freie Universität Berlin in the group of Jens Eisert.

I did my PhD in the Quantum Science and Technologies Group in the Hearne Institute for Theoretical Physics at Louisiana State University.  Previously, I was a Master’s student at the Institute for Quantum Computing at the University of Waterloo.

My research is in the general area of quantum information theory. For the past couple of years my focus has been on quantum networks as well as quantum computing; specifically, for the latter, applying machine learning methods to quantum algorithms for near-term applications. In the past, I worked on quantum cryptography, specifically quantum key distribution.

I am coauthor of the book “Principles of Quantum Communication Theory: A Modern Approach” with Mark Wilde. A preliminary version can be found here; see also the arXiv version. Please feel free to send feedback!

I am also a mentor for the QIT study group, which is part of the broader QWorld initiative.

  • Check out my research for details on what I’ve been working on, as well as my Google Scholar page and my papers on arXiv.
  • My talks can be found here.
  • My github page contains the package QuTIpy, which is a Python package for performing quantum information calculations, as well as code that I have written for my various research projects.
  • I’ve also compiled a list of introductory resources on the topics pertaining to my research and to physics in general.
  • See this How Stuff Works article, in which I talk about the future quantum internet. See also this article, written for a broad audience, for an introduction to the quantum internet. I also give a general talk about the quantum internet here (slides here).

You can contact me at sumeet.khatri [at] fu-berlin.de.

Papers

2022

  • Exponentially tighter bounds on limitations of quantum error mitigation [arXiv]
    Yihui Quek, Daniel S. França, SK, Johannes J. Meyer, Jens Eisert
  • A perturbative gadget for delaying the onset of barren plateaus in variational quantum algorithms [arXiv]
    Simon Cichy, Paul K. Faehrmann, SK, Jens Eisert
  • On the design and analysis of near-term quantum network protocols using Markov decision processes [AVS Quantum Science]

2020

  • Bounding the forward classical capacity of bipartite quantum channels [arXiv]
    Dawei Ding, SK, Yihui Quek, Peter W. Shor, Xin Wang, Mark M. Wilde

    • Contributed talk at TQC 2021.

2019

  • Second-order coding rates for key distillation in quantum key distribution [arXiv]
    Mark M. Wilde, SK, Eneet Kaur, Saikat Guha

2018

  • Quantum-assisted quantum compiling [arXiv] [Quantum] [slides]
    SK, Ryan LaRose, Alexander Poremba, Lukasz Cincio, Andrew T. Sornborger, Patrick J. Coles

2017

2016

  • Numerical evidence for bound secrecy from two-way post-processing in quantum key distribution [arXiv] [Physical Review A]
    SK, Norbert Lütkenhaus