I am an Assistant Professor in the Department of Computer Science at Virginia Tech. I am also a member of the Virginia Tech Center for Quantum Information Science and Engineering.
Master’s and PhD positions are available! Please contact me at skhatri [at] vt.edu if you are interested in my areas of research and would like to work with me.
- 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.
- I am very fortunate to be working with a great group of students and postdocs. See more information about my research group here!
- My talks can be found here.
- My PhD thesis can be found here.
- I am coauthor of the textbook “Principles of Quantum Communication Theory: A Modern Approach”. The latest version can be found here. Please feel free to send feedback!
- 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).
Papers
2025
- Reinforcement learning of quantum circuit architectures for molecular potential energy curves [arXiv]
Maureen Krumtünger, Alissa Wilms, Paul K. Faehrmann, Jens Eisert, Jakob Kottmann, Paolo Andrea Erdman, SK - k-Positive Maps: New Characterizations and a Generation Method [arXiv] [Open Systems & Information Dynamics]
Frederik vom Ende, SK, Sergey Denisov - Maximum channel entropy principle and microcanonical channels [arXiv]
Philippe Faist, SK- Contributed talk, Beyond IID 2025.
- Thermalization with partial information [arXiv]
Philippe Faist, SK - Quantum reinforcement learning of classical rare dynamics: Enhancement by intrinsic Fourier features [arXiv]
Alissa Wilms, Laura Ohff, Andrea Skolik, Jens Eisert, SK, David A. Reiss - Constant Overhead Entanglement Distillation via Scrambling [arXiv] [Physical Review Letters]
Andi Gu, Lorenzo Leone, Kenneth Goodenough, SK- Contributed talk, TQC 2026.
2024
- Multipartite entanglement distribution in Bell-pair networks without Steiner trees and with reduced gate cost [arXiv] [npj Quantum Information]
S. Siddardha Chelluri, SK, Peter van Loock- Poster, WQRN 2024.
- Experimental measurement and a physical interpretation of quantum shadow enumerators [arXiv] [Physical Review Research]
Daniel Miller, Kyano Levi, Lukas Postler, Alex Steiner, Lennart Bittel, Gregory A. L. White, Yifan Tang, Eric J. Kuehnke, Antonio A. Mele, SK, Lorenzo Leone, Jose Carrasco, Christian D. Marciniak, Ivan Pogorelov, Milena Guevara-Bertsch, Robert Freund, Rainer Blatt, Philipp Schindler, Thomas Monz, Martin Ringbauer, Jens Eisert - Online learning of quantum processes [arXiv] [QTML video]
Asad Raza, Matthias C. Caro, Jens Eisert, SK - Noise-induced shallow circuits and absence of barren plateaus [arXiv] [Nature Physics]
Antonio A. Mele, Armando Angrisani, Soumik Ghosh, SK, Jens Eisert, Daniel S. França, Yihui Quek- Contributed talk at TQC 2024.
- Reducing classical communication costs in multiplexed quantum repeaters using hardware-aware quasi-local policies [arXiv] [Communications Physics]
Stav Haldar, Pratik J. Barge, Xiang Cheng, Kai-Chi Chang, Brian T. Kirby, SK, Chee Wei Wong, Hwang Lee- Invited talk at Quantum Cryptography and Quantum Networks workshop, May 2024.
2023
- Quantum metrology in the finite-sample regime [arXiv] [PRX Quantum]
Johannes J. Meyer, SK, Daniel S. França, Jens Eisert, Philippe Faist- Contributed talk at QIP 2024.
- Contributed talk at Beyond IID 2023.
- Fast and reliable entanglement distribution with quantum repeaters: principles for improving protocols using reinforcement learning [arXiv] [Phys. Rev. Applied]
Stav Haldar, Pratik Barge, SK, Hwang Lee- Invited talk at Quantum Networks Workshop, July 2023.
- Invited talk at Quantum Cryptography and Quantum Networks workshop, May 2024.
2022
- Exponentially tighter bounds on limitations of quantum error mitigation [Nature Physics] [arXiv]
Yihui Quek, Daniel S. França, SK, Johannes J. Meyer, Jens Eisert- Contributed talk at QIP 2023.
- Perturbative gadgets for gate-based quantum computing: Nonrecursive constructions without subspace restrictions [arXiv] [Phys. Rev. A]
Simon Cichy, Paul K. Faehrmann, SK, Jens Eisert - On the design and analysis of near-term quantum network protocols using Markov decision processes [arXiv] [AVS Quantum Science]
2020
- Policies for elementary link generation in quantum networks [Quantum] [slides] [poster]
- Contributed talk at QuILT 2020 (video here).
- Contributed talk at TQC 2022 (video here).
- 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
- Spooky action at a global distance: analysis of space-based entanglement distribution for the quantum internet [arXiv] [npj Quantum Information] [slides]
SK, Anthony J. Brady, Renée A. Desporte, Manon P. Bart, Jonathan P. Dowling- Contributed talk at APS March Meeting 2021.
- Contributed talk at AQIS 2021.
- News article about the paper: Why the quantum internet should be built in space
- Second-order coding rates for key distillation in quantum key distribution [arXiv]
Mark M. Wilde, SK, Eneet Kaur, Saikat Guha - Noise Resilience of Variational Quantum Compiling [arXiv] [New Journal of Physics] [slides]
Kunal Sharma, SK, Marco Cerezo, Patrick J. Coles- Contributed talk at QuILT 2019.
- Practical figures of merit and thresholds for entanglement distribution in quantum networks [arXiv] [Physical Review Research] [slides]
SK, Corey Matyas, Aliza Siddiqui, Jonathan P. Dowling- Contributed talks at quantum network workshops in Arizona and Vienna (video here).
- Contributed talk at SQuInT 2020 (video here).
- Extendibility of bosonic Gaussian states [arXiv] [Physical Review Letters] [slides]
Ludovico Lami, SK, Gerardo Adesso, Mark M. Wilde- Contributed talk at QuILT 2019 and TQC 2020.
- Poster presentation at Algebraic and Statistical Ways Into Quantum Resource Theories, Banff.
- Information-theoretic aspects of the generalized amplitude damping channel [arXiv] [Physical Review A]
SK, Kunal Sharma, Mark M. Wilde- Contributed talk at APS March Meeting 2019.
2018
- Quantum-assisted quantum compiling [arXiv] [Quantum] [slides]
SK, Ryan LaRose, Alexander Poremba, Lukasz Cincio, Andrew T. Sornborger, Patrick J. Coles- Poster presentations at QIP 2019, SQuInT 2019.
- Seminar at IQC.
2017
- Robust quantum network architectures and topologies for entanglement distribution [arXiv] [Physical Review A]
Siddhartha Das, SK, Jonathan P. Dowling- Contributed talk at SQuInT 2018.
- Poster presentation at WQRN 2017, Vienna.
- Fundamental limits on quantum dynamics based on entropy change [arXiv] [Journal of Mathematical Physics]
Siddhartha Das, SK, George Siopsis, Mark M. Wilde- Contributed talk at CQIQC-VII, Toronto.
2016
- Numerical evidence for bound secrecy from two-way post-processing in quantum key distribution [arXiv] [Physical Review A]
SK, Norbert Lütkenhaus- Poster presentation at QCMC 2016, QCRYPT 2017.
Sumeet Khatri 