Hello.

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I am Hersh Singh, a postdoctoral researcher in theoretical physics at the InQubator for Quantum Simulation at the University of Washington, Seattle. I am also affiliated with the Institute for Nuclear Theory.

I am interested in studies of strongly coupled quantum field theories, with applications to nuclear and high-energy physics, using the powerful tools of lattice field theory, effective field theory and quantum information science.

Before this, I got a

Some of my recent work includes

A complete list of my publications can be found on iNSPIRE or Google Scholar.

I thoroughly enjoy teaching and always seem to find opportunites to talk about things that I am excited about. During my PhD, I was awarded the Mary Creason Memorial Award for Undergraduate Teaching. I also taught a mini-course on Renormalization Group (Spring 2020, Duke University) for graduate students.

Publications

  1. “From asymptotic freedom to θ vacua: Qubit embeddings of the O(3) nonlinear σ model” (2022)
    Stephan Caspar and Hersh Singh
    Phys. Rev. Lett. 129, 022003
    DOI:10.1103/PhysRevLett.129.022003. arXiv:2203.15766
  2. “Large-charge conformal dimensions at the O(N) Wilson-Fisher fixed point” (2022)
    Hersh Singh
    arXiv:2203.00059
  3. “Space-time symmetric qubit regularization of the asymptotically free two-dimensional O(4) model” (2022)
    Junzhe Zhou, Hersh Singh, Tanmoy Bhattacharya, Shailesh Chandrasekharan, Rajan Gupta
    Phys.Rev.D 105 (2022) 5, 054510
    DOI:10.1103/PhysRevD.105.054510. arXiv:2111.13780
  4. “Qubit Regularization of Asymptotic Freedom” (2021)
    Tanmoy Bhattacharya, Alexander J. Buser, Shailesh Chandrasekharan, Rajan Gupta, Hersh Singh
    Phys.Rev.Lett. 126 (2021) 17, 172001
    DOI:10.1103/PhysRevLett.126.172001. arXiv:2012.02153
  5. “Qubit regularized $O(N)$ nonlinear sigma models” (2022)
    Hersh Singh
    Phys.Rev.D 105 (2022) 11, 114509
    DOI:10.1103/PhysRevD.105.114509. arXiv:1911.12353
  6. “A qubit regularization of the $O(3)$ sigma model” (2019)
    Hersh Singh and Shailesh Chandrasekharan
    Phys. Rev. D 100 (Sept. 2019), p. 054505
    DOI:10.1103/PhysRevD.100.054505. arXiv:1905.13204
  7. “Few-body physics on a space-time lattice in the worldline approach” (2019)
    Hersh Singh and Shailesh Chandrasekharan
    Phys. Rev. D 99 (7 Apr. 2019), p. 074511
    DOI:10.1103/PhysRevD.99.074511. arXiv:1812.05080
  8. “Worldline approach to few-body physics on the lattice” (2018)
    Hersh Singh
    PoS LATTICE2018(2018), p. 158
    DOI:10.22323/1.334.0158. arXiv:1812.02364
  9. “Large-$N_c$ relationships among two-derivative pionless effective field theory couplings” (2018)
    Matthias R. Schindler, Hersh Singh, and Roxanne P. Springer
    Phys. Rev. C 98 (4 Oct. 2018), p. 044001
    DOI:10.1103/PhysRevC.98.044001. arXiv:1805.06056

Recent Talks

  1. "From Qubits to Quantum Field Theories"
    University of Washington Bothell (Oct 11, 2022)
    Colloquium
  2. "From topological $\theta$ vacua to asymptotic freedom: Qubit models, sign problems, and anomalies"
    Rising Researchers Seminar Series (Oct 04, 2022)
    Invited talk
  3. "From topological $\theta$ vacua to asymptotic freedom: Qubit models, sign problems, and anomalies"
    Triangle Nuclear Theory Colloquium, Duke University (Sept 27, 2022)
    Invited talk
  4. "Hamiltonian Time Evolution"
    Quantum Computing Internship for Physics Undergraduates (QCIPU) 2022, Fermilab (July 05, 2022)
    Lectures
  5. "From Qubits to Quantum Field Theories"
    Duke Undergraduate Quantum Information Society (April 20, 2022)
    Invited talk
  6. "Qubit Regularization of QFTs. From UV to IR: Asymptotic Freedom and Topology"
    MIT Virtual Lattice Field Theory Colloquium (March 17, 2022)
    Colloquium
  7. "From Qubits to Quantum Field Theories"
    University of Washington Bothell (November 23, 2021)
    Colloquium
  8. "Entanglement harvesting from the vacuum of quantum spin chains"
    Syracuse University - HEP/Cosomology Seminar (Novemeber 15, 2021)
    Invited talk
  9. "Entanglement harvesting from the vacuum of quantum spin chains"
    Fall Meeting of the APS Division of Nuclear Physics (DNP) Meeting 2021 (October 13, 2021)
    Contributed talk
  10. "Qubit Regularization of Asymptotic Freedom"
    Lattice 2021 (July 26, 2021)
    Contributed talk
    Video | Slides
  11. "Lectures on "Hamiltonian Time Evolution""
    Quantum Computing Internship for Physics Undergraduates, Fermilab (July 20, 2021)
    Lecture
    Videos: Lecture 1, Lecture 2 | Notes
  12. "Qubit Regularization of Asymptotic Freedom"
    Indian Insitute of Technology Madras – Dual Mysteries of Gauge and Gravity Online Seminar Series (April 19, 2021)
    Invited talk
    Video
  13. "Qubit Regularization of Asymptotic Freedom"
    Brookhaven National Lab (January 4, 2021)
    Invited talk
  14. "Qubit models and large charge effective field theories"
    Fall Meeting of the APS Division of Nuclear Physics (DNP) 2020 (October 31, 2020)
    Contributed talk
  15. "Qubit models and large-charge conformal field theories"
    Duke Nuclear Theory seminar, Duke University, Durham, NC, USA (November 26, 2019)
    Invited talk
  16. "Pionless EFT – applications to nuclear and dark matter physics"
    University of Bern, Switzerland (July 30, 2019)
    Invited talk
  17. "A qubit regularization of the $O(3)$ sigma model"
    ECT* Doctoral Training Program on "Effective Field Theory Techniques", Trento, Italy (July 03, 2019)
    Contributed talk
  18. "A qubit regularization of the $O(3)$ sigma model"
    Lattice 2019, Wuhan, China (June 19, 2019)
    Contributed talk
  19. "Few-body physics of contact interactions on the lattice"
    MIAPP Workshop on Interface of Effective Field Theories and Lattice Gauge Theory, TUM Garching, Germany (November 06, 2018)
    Invited talk
  20. "Lectures on "Foundations of quantum mechanics""
    Duke Physics (September – October 2018)
    Seminar
  21. "Worldline approach to few-body physics on the lattice"
    Lattice 2018, East Lansing, MI, USA (July 24, 2018)
    Contributed talk