Raghav G. Jha
Postdoc at Jefferson National Lab (JLab)
Address: 12000 Jefferson Avenue, VA, USA 23606
Phone: +1 757 940 9624
E-mail: raghav.govind.jha@gmail.com
Personal webpage: https://rgjha.github.io
Employment
- September 2022—present:
Postdoc, Jefferson Lab
- September 2019 - August 2022
Postdoc, Perimeter Institute for Theoretical Physics
Research interests
Lattice field theory, Quantum computation and information,
Tensor networks, Quantum chaos, and Random matrix theory.
Education
- Syracuse University
Ph.D. Physics, May 2019
Advisor: Simon M. Catterall
Thesis: Holography, large N, and supersymmetry on the lattice
- Bose Institute and St. Xavier's College, Kolkata, India
M.Sc. Physics (2011—2013)
- Sorbonne Universite, Paris, France
M.S Nanoscience (2010—2011)
- St.Stephen's College, Delhi, India
B.Sc. (Honors) (2007—2010)
Honors and awards
- Henry Levinstein Fellowship for Outstanding Senior Graduate Student - Department of Physics, Syracuse University [USD 2000] 2017
- College of Arts and Sciences Fellowship for best performance in introductory Graduate Courses - Syracuse University [USD 1700] 2014
- CSIR/UGC-NET - Junior Research Fellowship (JRF) by Government of India 2013
- Erasmus Mundus Scholarship for pursuing M.S at UPMC, University of Paris VI [EUR 12000] 2010
- National Top 25 Students (out of 5153 students) in National Graduate Physics Examination (NGPE) conducted by Indian Association of Physics Teachers (IAPT) 2009
- KVPY (Kishore Vaigyanik Protsahan Yojana) Scholarship by Department of Science & Technology, Government of India [about USD 3500 in two years] 2008
- Merit certificate by University of Delhi (11th in the university out of about 1200 students) 2008
- NIUS (National Initiative on Undergraduate Sciences) Fellowship by Tata Institute of Fundamental Research (TIFR), Mumbai 2008
Professional activities and Computing grants
- Referee for Nature npj Quantum Information (since 2024),
Physical Review Letters, Phys. Rev. D, and Phys. Rev. Res.
(since 2020), European Physical Journal (EPJ) (since 2022),
IOP Machine Learning: Science & Technology (since 2021).
Total papers reviewed: 8
- Chair of parallel session on 'Quantum Computation and Information' in the 40th Annual Lattice conference at Fermilab, USA [1 August 2023]
- Co-organizer of 'Quantum Computing Bootcamp' at Jefferson Lab, USA from June 20-30, 2023 funded by Quantum Horizons, Department of Energy (DOE).
- Quantum Fields and Strings Seminar Organizer at Perimeter Institute [January 2020 - March 2021]
- Awarded DiRAC computing grant in 2022 for approx. 24M core-hours with D. Schaich, T. Wiseman, A. Joseph
- Awarded USQCD computing grants of approx. 12M core-hours on Fermilab pi0 machine each year in 2017 & 2018 with S. Catterall, D. Schaich, and J. Giedt
Mentoring Experience
- Graduate students
- Nikhil Kalyanapuram (Perimeter Scholar International (PSI) student at Perimeter Institute → PhD Penn State → Industry) [1 publication] 2019-2020
- Navdeep S. Dhindsa (PhD IISER Mohali → Postdoc at IMSc, Chennai) [2 publications, 1 in preparation] 2020-2023
- Vamika Longia (PhD student at IISER Mohali) [1 publication] 2021-2022
- Abhishek Samlodia (IISER Mohali → PhD candidate at Syracuse University) [3 publications] 2021-
- Nikhil Bansal (BS-MS IISER Mohali) [1 in preparation] 2022-2023
- Shane Thompson (PhD University of Tennessee Knoxville → Postdoc at U.S. Naval Research Lab, Washington DC) [1 publication, 2 in preparation] 2023- 2024
- Bharath Sambasivam (PhD Syracuse University → Postdoc at Virginia Tech, USA) [2 publications, 1 in preparation]
- Ranadeep Roy (PhD student at The Ohio State University) [1 publication]
- Victor Ale (PhD student at University of Tennessee Knoxville) [2 in preparation]
Invited Talks/Lectures
- Thermal state preparation and dynamics of random all-to-all fermionic model (17 July, 2024) - Massachusetts Institute of Technology (MIT), C2QA meeting, Boston, USA
- SYK model on a noisy quantum computer - dynamics and state preparation (May 07, 2024) - University
of Witwatersrand, South Africa (Online)
- Introduction to tensor networks (29-30 April, 2 May 2024) - University of Pretoria, South Africa
- Quantum computing for quantum many-body systems (17 April, 2024) - William & Mary, VA, USA
- Approaches to universal quantum computing for spin and gauge models (16 April, 2024) - University of Iowa
- Random dense Hamiltonians on current noisy quantum computers (28 March, 2024) - University of Maryland
- Extracting some Physics with IBM's 127-qubit quantum processor (13 March, 2024) - Jefferson Lab
- Real-time dynamics of SYK model on a noisy quantum computer (05 March, 2024) - Workshop on 'Toward quantum simulation of gauge/gravity duality and
lattice gauge theory', Queen Mary University of London (Online)
(PDF)
- SYK model on a noisy quantum computer (06 February, 2024) - Indian Institute of Science (IISc), Bangalore, India
(PDF)
- Quantum Computation of the O(3) model using qumodes (02 August, 2023) - Lattice 2023, Fermilab, USA
- Computation with Quantum Mechanics (June 20, 2023) - Set of two lectures at Quantum Computation Bootcamp, Jefferson Lab, USA
- Can quantum computation improve our understanding of quantum fields? (June 7, 2023) - Set of two lectures at HUGS 2023 Summer School, Jefferson Lab, USA
- Non-linear sigma models using quantum computation (May 30, 2023) at C2QA Meeting, New York City, USA
- Introduction to Quantum Computing methods in Physics (April 27, 2023) at Tata Institute, Mumbai, India
(Online)
(PDF)
- Aspects of Classical and Quantum Computing of Quantum Many-Body Systems (February 10, 2023) at Ashoka University (Online)
(PDF)
- Classical computation using tensor networks and quantum computation with qubits and qumodes (November 14, 2022) at Jefferson Lab, USA
- Application of tensor methods to real-space renormalization and real-time study of field theories (October 31, 2022) at Brookhaven National Lab, USA (Online)
- New tools for old problems in spin and gauge models on the lattice (October 12, 2022) at IIT Hyderabad, India (Online)
- Some old problems on the lattice using tensors (August 26, 2022) at NUMSTRINGS 2022 conference at ICTS, India
- Introduction to Quantum Computation using QISKIT (June 21 and 22, 2022) at Rensselaer Polytechnic Institute, Troy, USA (Online)
- New approach to continuous spin models in two and three dimensions (May 17, 2022) at APTCP, Pohang, South Korea (Online)
- Holography with large matrices on the lattice (March 24, 2022) at UNAM, Mexico City, Mexico
- Large N matrix models using Monte Carlo and Bootstrap (February 22, 2022) at University of Surrey, UK (Online)
- Introduction to tensor networks and spin systems (January 11, 2022) at Azim Premji University, Bengaluru, India (Online)
- Tensor networks and spin models (December 7, 2021) - at Indian Institute of Science Education and Research (IISER), Mohali, India (Online) (PDF)
- Real-space tensor renormalization for spin models in three dimensions - November 19, 2021 at Perimeter Institute
-
Solving matrix models at large and finite N (June 28 and 29, 2021) - Two lectures for Summer School 2021 at Rensselaer Polytechnic Institute, USA (Online due to COVID-19 pandemic)
(PDF)
- Holographic gauge theories on the lattice - June 23, 2021 at Dublin Institute for Advanced Studies, Dublin, Ireland (Online via Zoom due to COVID-19 pandemic) (PDF)
- Old and new methods for new and old problems in Physics - March 8, 2021 at Indian Institute of Technology (IIT) Madras (Online via Zoom due to COVID-19 pandemic) (PDF)
- Probing holographic dualities with lattice supersymmetric Yang-Mills theories - February 25, 2021 at Massachusetts Institute of Technology (Online via Zoom due to COVID-19 pandemic) (PDF) (YouTube)
- New tool for old problems - Tensor network approach to spin models and gauge theories - October 14, 2020 at University of Liverpool, UK (Online via Zoom due to COVID-19 pandemic) (PDF)
- Tensor Networks: Algorithm & Applications - June 10 and 11, 2020 - Two lectures [1.5 hours each] for CyberTraining Summer School 2020 at Rensselaer Polytechnic Institute, USA (Online due to COVID-19 pandemic) (PDF)
- Holographic aspects of supersymmetric gauge theories - October 4, 2019 - Perimeter Institute
- Numerical Approaches to Holography - August 28, 2019 - Seminar at Ashoka University, Sonipat, India (PDF)
- Numerical Approaches to Holography - August 08, 2019 - Seminar at Indian Institute of Science Education and Research (IISER), Mohali, India
- Holography, large N, and supersymmetry on the lattice - April 02, 2019 - Ph.D. Defense talk (PDF)
- Fundamentals of Quantum Entropy - March 29, 2019
- Holographic dualities and tensor renormalization group study of gauge theories - March 11, 2019 - Interdisciplinary Quantum Fields and Strings + Tensor Networks Initiative invited talk at Perimeter Institute (PDF) (PIRSA)
- Matrix Models - December 7, 2018 - Theory HEP Group talk at Syracuse University
- Lattice gravity and scalar fields - July 23, 2018 at Annual Lattice Conference 2018, Michigan, USA (PDF)
- Supersymmetry breaking and gauge/gravity duality on the lattice - April 06, 2018 - Lattice beyond Standard Model 2018 at UC Boulder, Colorado (PDF)
- Large $N$ gauge theories - March 09, 2018 - Theory HEP Group talk at Syracuse University
- Recent results from lattice supersymmetry in d < 4 dimensions - January 31, 2018 - NUMSTRINGS I conference at ICTS, Bangalore
(PDF) (YouTube)
- Testing gauge/gravity duality using lattice simulations - July 22, 2017 at Annual Lattice Conference 2017 , Granada, Spain (PDF)
- Testing holography through lattice simulations - April 04, 2017 at Quantum Gravity, String theory, and Holography conference at Yukawa Institute for Theoretical Physics, Kyoto, Japan (PDF)
- Maximally supersymmetric Yang-Mills and dual gravitational theories - October 07, 2016 - Theory HEP Group talk at Syracuse University
- Supersymmetry on the lattice - April 17, 2016 at the APS 2016 Meeting, Salt Lake City, Utah, USA (PDF)
- Lattice studies of N=(8,8) SYM - April 08, 2016 - Theory HEP Group talk at Syracuse University
Publications
- Sparsity dependence of Krylov state complexity in the SYK model (arXiv)
- Thermal state preparation of the SYK model using a variational quantum algorithm (arXiv)
- SU(2) principal chiral model with tensor renormalization group on a cubic lattice (arXiv)
- Phase diagram of generalized XY model using tensor renormalization group (arXiv)
- Hamiltonian simulation of minimal holographic sparsified SYK model (arXiv)
- Tensor renormalization group study of 3D principal chiral model (arXiv)
- Phase diagram of two-dimensional $SU(N)$ super-Yang--Mills theory with four supercharges (arXiv)
- Sachdev-Ye-Kitaev model on a noisy quantum computer (Published in PRD)
- Continuous variable quantum computation of the O(3) model in 1+1 dimensions (Published in PRA)
- Toward quantum computations of the O(3) model using qumodes (arXiv)
- GPU-Acceleration of Tensor Renormalization with PyTorch using CUDA (arXiv)
- Notes on Quantum Computation and Information (arXiv)
- Supersymmetric Wilson loops on the lattice in the large $N$ limit (Springer) (Published in EPJ-ST)
- Non-perturbative phase structure of the bosonic BMN matrix model (arXiv) (Published in JHEP)
- Thermal phase structure of dimensionally reduced super-Yang--Mills (arXiv) (Published in Proceedings of Science (POS))
- Tensor renormalization of three-dimensional Potts model (arXiv)
- Introduction to Monte Carlo for Matrix Models (arXiv) (Published in SciPost Lecture Notes)
- Large-$N$ limit of two-dimensional Yang--Mills theory with four supercharges (arXiv)
- Tensor renormalization group study of the 3d O(2) model (arXiv) (Published in PRD)
- Three-dimensional super-Yang-Mills theory on the lattice and dual black branes (arXiv) (Published in PRD)
- Positive geometries for all scalar theories from twisted intersection theory (arXiv) (Published in PRR)
- Critical analysis of two-dimensional classical XY model using tensor renormalization group (arXiv) (Published in JSTAT)
- Thermal phase structure of a supersymmetric matrix model (arXiv) (Published in PoS)
- Finite $N$ unitary matrix models (arXiv)
- Tensor renormalization group study of the non-Abelian Higgs model in two dimensions (arXiv) (Published in PRD)
- Lattice quantum gravity with scalar fields (arXiv) (Published in PoS)
- The properties of D1-branes from lattice super-Yang-Mills theory using gauge/gravity duality (arXiv) (Published in PoS)
- On the removal of the trace mode in lattice $\mathcal{N} = 4$ super Yang-Mills theory (arXiv) (Published in PRD)
- Nonperturbative study of dynamical SUSY breaking in $\mathcal{N} = (2,2)$ Yang-Mills theory (arXiv) (Published in PRD)
- Truncation of lattice $\mathcal{N} = 4$ super Yang-Mills (Published in EPJC)
- Testing the holographic principle using lattice simulations (arXiv) (Published in EPJC)
- Testing holography using the lattice with super-Yang-Mills theory on a 2-torus (arXiv) (Published in PRD)
Academic References (alphabetical order)
- Simon Catterall, Syracuse University, USA
- Robert Edwards, Jefferson Lab, USA
- George Siopsis, University of Tennessee Knoxville, USA
- John Preskill, California Institute of Technology (Caltech), USA
- Pedro Vieira, Perimeter Institute, Canada
- Toby Wiseman, Imperial College, London, UK