Rahul Sarkar
Contact
Email: rsarkar at stanford dot eduLocation: ICME
Huang Engineering Building
475 Via Ortega, Suite 060
Stanford University
Stanford, CA 94305
GitHub: rsarkargithub
ORCID: 0000000317621244
Stanford Profile: rahulsarkar
Google Scholar, LinkedIn
I am a Ph.D. student in the Institute for Computational and Mathematical Engineering (ICME) at Stanford Univesity. I am advised by Biondo Biondi & András Vasy. I expect to graduate in 2022. I obtained a Masters from ICME in Computational Mathematics in 2017.
My current research interests include computational aspects of inverse problems, mathematical analysis, and quantum computation. See Research & Publications for more information on these projects and collaborators.
New papers

Nov 2021 My paper titled "Density theorems with applications in quantum signal processing" , with Ted Yoder, is now on arXiv!

Aug 2021 My paper titled "Joint inversion of the reflectivity and the velocity model." , with Alejandro Cabrales, Biondo Biondi and Robert Clapp, is now accepted for publication in Geophysics.

July 2021 My paper titled "A numerical scheme to solve the LippmannSchwinger equation for a linearly varying background" , with Biondo Biondi, is now accepted for publication in First International Meeting for Applied Geoscience & Energy Expanded Abstracts.

Jan 2021 My paper titled "A graphbased formalism for surface codes and twists", with Ted Yoder, is now on arXiv!

Aug 2020 My new paper titled "The index of invariace and its implications for a parameterized least squares problem", jointly with LĂ©opold Cambier, is now available on arXiv! The paper substantially generalizes, and gives a much deeper explanation of the 1dimensional subspace result by Hallman and Gu from 2018, available here. In addition, the paper contains lots of other new results, and also a new matrix manifold is characterized. As the title suggests, a quantity called the index of invariance plays a central and key role in the paper. The paper shows that for certain linear algebra problems, techniques from analysis and topology can often bring new and nontrivial insights!
Announcements and upcoming talks

Sept 29, 2021 I'll be presenting my paper "A numerical scheme to solve the LippmannSchwinger equation for a linearly varying background" at the IMAGE 2021 Conference in Denver. [Slides] 
Apr 16, 2021 I'll be giving a talk at the Stanford Quantum Information theory group meeting titled "Generalization of homological surface codes from graph embeddings on 2D manifolds". [Slides] 
Dec 31, 2020 My paper "On sets of maximally commuting and anticommuting Paulis" is now accepted for publication in the journal Research in the Mathematical Sciences. 
June 16, 2020 My invited talk at the SESAAI 2020 Annual Meeting, on a new class of quantum codes, is now available online on Youtube. 
May 28, 2020 I gave a short invited talk "Can a Quantum Computer Help in Creating a Sustainable Future?" at ICME XPO 2020. [Slides] 
May 06, 2020 I will be presenting the current status of my work on quantum stabilizer codes at the Schlumberger Technology Innovation Center. [Slides] 
Apr 01, 2020 I will be the course assistant for the 3D Seismic Imaging class GEOPHYS 280 being taught by Prof. Biondo Biondi in Spring 2020. 
Jan 06, 2020 I have been awarded the Schlumberger Innovation Fellowship for the academic year 20192020. Official announcement is here. 
Nov 25, 2019 A US patent application titled "Efficient quadratic Ising Hamiltonian generation with qubit reduction", joint work with Marco Pistoia, has now been filed by IBM Corporation. 
Sep 23, 2019 I am teaching a 1unit class titled "Introduction to quantum computing and quantum algorithms" from Oct 2  Oct 30, 2019. The class meets twice every week on Mondays and Wednesdays. 
Sep 18, 2019 I presented my paper titled "Illumination compensation of shadow zones in extended least squares migrated images by solving the linear inverse problem in tomographic full waveform inversion", joint work with Biondo Biondi, at the 89th SEG Annual International Meeting, 2019, in San Antonio. 
Jun 1, 2019 I am excited to announce that I will be spending my summer at the IBM Thomas J. Watson Research Center, Yorktown Heights, NY, as a Graduate Quantum Computing intern, from Jun 15  Sep 13, 2019.