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From the 1 of 6 linked papers with an AI index.

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6 papers

quant-ph2026

An Analytically Trained Variational Surrogate for Quantum Phase Estimation on NISQ Hardware

Mousumi Kundu, Ashish Kumar Patra, Anurag K. S. V. +4

Quantum Phase Estimation (QPE) is a foundational algorithm for molecular ground-state energy estimation, but its deep circuit requirements make direct hardware execution impractica…

quant-ph2026

Machine-Learned Compact Subspace Generation for Quantum Selected Configuration Interaction within Density Matrix Embedding Framework

Ashish Kumar Patra, Anurag K. S. V., Ruchika Bhat +3

Sample-based Quantum Diagonalization (SQD), an extension of Quantum Selected Configuration Interaction (QSCI), has emerged as a promising hybrid quantum-classical paradigm for comp…

quant-ph2026

Towards Chemically Accurate and Scalable Quantum Simulations on IQM Quantum Hardware: A Quantum-HPC Hybrid Approach

Anurag K. S. V., Ashish Kumar Patra, Manas Mukherjee +5

The paper presents large‑scale experiments on IQM’s 24‑qubit superconducting processor, using up to 16 qubits and sample‑based quantum diagonalization with various ansätze to compu…

quant-ph2026

Bridging the NISQ and Fault-Tolerant Regimes: Generative-ML-Assisted Quantum Selected CI for Molecular Simulations

Anurag K. S. V., Ashish Kumar Patra, Manas Mukherjee +4

Calculation of binding energies for protein-ligand molecular systems requires accurate treatment of the electronic structure, a quantum chemistry problem that scales exponentially…

quant-ph2026

Quantum Simulation of Ligand-like Molecules through Sample-based Quantum Diagonalization in Density Matrix Embedding Framework

Ashish Kumar Patra, Anurag K. S. V., Sai Shankar P. +4

The accurate treatment of electron correlation in extended molecular systems remains computationally challenging using classical electronic structure methods. Hybrid quantum-classi…

quant-ph2026

A Polylogarithmic-Time Quantum Algorithm for the Laplace Transform

Akash Kumar Singh, Ashish Kumar Patra, Anurag K. S. V. +3

We introduce a quantum algorithm to perform the Laplace transform on quantum computers. Already, the quantum Fourier transform (QFT) is the cornerstone of many quantum algorithms,…