Arkopal Dutt

Oct 31, 2024 | arxiv.org | Francisco Escudero |Arkopal Dutt |Francisco Gutiérrez

[Submitted on 31 Oct 2024] Title:Testing and learning structured quantum Hamiltonians View a PDF of the paper titled Testing and learning structured quantum Hamiltonians, by Srinivasan Arunachalam and 2 other authors View PDF HTML (experimental) Abstract:We consider the problems of testing and learning an unknown $n$-qubit Hamiltonian $H$ from queries to its evolution operator $e^{-iHt}$ under the normalized Frobenius norm. We prove:1.

Aug 12, 2024 | arxiv.org | Arkopal Dutt

arXiv:2408.06289 (quant-ph) [Submitted on 12 Aug 2024 (v1), last revised 12 Nov 2024 (this version, v3)] View PDF HTML (experimental) Comments: Subjects: Quantum Physics (quant-ph); Computational Complexity (cs.CC); Data Structures and Algorithms (cs.DS) Cite as: arXiv:2408.06289 [quant-ph] (or arXiv:2408.06289v3 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2408.06289 Submission history From: Arkopal Dutt [ view email] [v1] Mon, 12 Aug 2024 16:56:33 UTC (40 KB) [v2] Tue, 22 Oct...

Jul 28, 2023 | link.aps.org | Arkopal Dutt |Edwin Pednault |IBM Quantum |Yorktown Heights

Abstract Hamiltonian learning is an important procedure in quantum system identification, calibration, and successful operation of quantum computers. Through queries to the quantum system, this procedure seeks to obtain the parameters of a given Hamiltonian model and description of noise sources. Standard techniques for Hamiltonian learning require careful design of queries and O(ε−2) queries in achieving learning error ε due to the standard quantum limit.

May 3, 2023 | arxiv.org | Sergey Bravyi |Theodore J. Yoder |Arkopal Dutt

[Submitted on 16 Aug 2022 (v1), last revised 3 May 2023 (this version, v2)] Title:Optimal algorithms for learning quantum phase states Download a PDF of the paper titled Optimal algorithms for learning quantum phase states, by Srinivasan Arunachalam and 3 other authors Download PDF Abstract: We analyze the complexity of learning $n$-qubit quantum phase states.