Publications

My publications are listed below.

  1. Density theorems with applications in quantum signal processing. Rahul Sarkar and Ted Yoder, 2021.
    [arXiv Pre-print]
  2. A numerical scheme to solve the Lippmann-Schwinger equation for a linearly varying background. Rahul Sarkar and Biondo Biondi. IMAGE Conference, 2021.
    doi:10.1190/segam2021-3579336.1
    [Paper] [SEG 2021 Talk (Denver)]
  3. Joint inversion of the reflectivity and the velocity model. Alejandro Cabrales, Rahul Sarkar, Biondo Biondi and Robert Clapp. Geophysics , 2021.
    doi:10.1190/geo2020-0631.1
    [Paper]
  4. A graph-based formalism for surface codes and twists. Rahul Sarkar and Ted Yoder, 2020.
    [arXiv Pre-print] [STIC Talk (Palo Alto)] [SESAAI Talk (Palo Alto)]
  5. The index of invariace and its implications for a parameterized least squares problem. Léopold Cambier and Rahul Sarkar, 2020.
    [arXiv Pre-print] [XPO 2020 (Palo Alto)]
  6. On sets of maximally commuting and anticommuting Pauli operators. Rahul Sarkar and Ewout van den Berg. Research in the mathematical sciences, 2021.
    [Paper] [arXiv Pre-print]
  7. Seismic velocity estimation: a deep recurrent neural-network approach. Rahul Sarkar and Gabriel Fabien-Ouellet. Geophysics , 2020.
    doi:10.1190/geo2018-0786.1
    [Paper] [Code]
  8. Texture Based Classification Of Seismic Image Patches Using Topological Data Analysis. Rahul Sarkar and Bradley J. Nelson. 81st EAGE Conference and Exhibition, 2019.
    doi:10.3997/2214-4609.201901608
    [Paper] [EAGE 2019 Talk (London)] [SEP Meeting 2019 Talk (Monterrey)] [ICME XPO 2019 Poster]
  9. Illumination compensation of shadow zones in extended least squares migrated images by solving the linear inverse problem in tomographic full waveform inversion. Rahul Sarkar and Biondo Biondi. Expanded Abstracts of the 89th SEG Annual International Meeting, 2019.
    doi:10.1190/segam2019-3215094.1
    [Paper] [SEG 2019 Talk (San Antonio)] [SEP Meeting 2019 Talk (Monterrey)]
  10. Snell tomography for net-to-gross estimation using quantum annealing. Rahul Sarkar and Stewart A. Levin. Expanded Abstracts of the 88th SEG Annual International Meeting, 2018.
    doi:10.1190/segam2018-2998409.1
    [Paper] [SEG 2018 Talk (Anaheim)] [SEP Meeting 2018 Talk (Santa Cruz)]

Technical Reports

  1. Snell tomography using quantum annealing. Rahul Sarkar and Stewart A. Levin. SEP Report 172, 377-396, 2018. [pdf]
  2. Frequency domain tomographic full waveform inversion. Rahul Sarkar and Biondo Biondi. SEP Report 172, 173-192, 2018. [pdf]
  3. A 2D Helmholtz equation solver library based on C++ and SuiteSparse. Rahul Sarkar and Biondo Biondi. SEP Report 170, 157-174, 2017. [pdf]

Other Writing

  1. A quadratic unconstrained binary optimization problem formulation for single-period index tracking with cardinality constraints. Rahul Sarkar and Peter L. McMahon, 2018.
    [pdf] [White-paper for QC Ware Corp.]
  2. CS234 Notes - Lecture 2: Making Good Decisions Given a Model of the World. Rahul Sarkar and Emma Brunskill, 2018. [pdf]
  3. CS234 Class Project: Information directed reinforcement learning. Rahul Sarkar and Andrea Zanette, 2017. [pdf]
  4. CS238 Class Project: Automated Aircraft Touchdown. Rahul Sarkar, Amy Shoemaker and Sagar Vare, 2016. [pdf] [code]
  5. CME304 Class Project: Enclosing an ellipse with rectangles. Rahul Sarkar, 2016. [pdf]

Patents

  1. Efficient quadratic Ising Hamiltonian generation with qubit reduction. Rahul Sarkar and Marco Pistoia, 2019. US Patent filed by IBM Corporation. [Patent]

Selected Talks and Presentations

  1. IMAGE 2021 Conference and Exhibition. A numerical scheme to solve the Lippmann-Schwinger equation for a linearly varying background. Denver, 2021. [slides]
  2. Stanford Quantum Information Theory Group Meeting. Generalization of homological surface codes from graph embeddings on 2D manifolds. Palo Alto, 2021. [slides]
  3. SESAAI Annual Meeting. Quantum stabilizer codes from graph embeddings on manifolds. Palo Alto, 2020. [video] [slides]
  4. ICME XPO 2020. Can a Quantum Computer Help in Creating a Sustainable Future? Palo Alto, 2020. [video] [slides]
  5. Schlumberger Innovation Fellowship Talk. Quantum stabilizer codes from graph embeddings on manifolds. Palo Alto, 2020. [slides]
  6. 89th SEG Annual International Meeting. Illumination compensation of shadow zones in extended least squares migrated images by solving the linear inverse problem in tomographic full waveform inversion. San Antonio, 2019. [slides]
  7. IBM Quantum Computing Weekly Seminar. On sets of commuting and anticommuting Paulis. T.J. Watson Research Center, Yorktown Heights, 2019. [slides]
  8. IBM Quantum Optimization Bi-Weekly Meeting. Efficient quadratic Ising Hamiltonian generation with qubit reduction. T.J. Watson Research Center, Yorktown Heights, 2019. [slides]
  9. 81st EAGE Conference and Exhibition. Texture Based Classification Of Seismic Image Patches Using Topological Data Analysis. London, 2019. [slides]
  10. 88th SEG Annual International Meeting. Snell tomography for net-to-gross estimation using quantum annealing. Anaheim, 2018. [slides]
  11. Q2B Conference: Quantum Computing for Business. Quantum Computing Software / Application Landscape (joint talk with Peter L. McMahon). Palo Alto, 2017.